An electronic ink based alarm clock

Abstract

This utility model belongs to the field of alarm clocks, specifically an electronic ink-based alarm clock, comprising: an MCU, a USB power detection circuit, a battery power detection circuit, an accelerometer, a temperature and humidity sensor, a real-time clock control circuit, a buzzer, an e-ink screen, a button circuit, a lithium battery, a 3.3V linear voltage regulator circuit, a USB interface, and a charging management circuit. The USB power detection circuit, battery power detection circuit, accelerometer, temperature and humidity sensor, real-time clock control circuit, buzzer, e-ink screen, USB interface, 3.3V linear voltage regulator circuit, and button circuit are all electrically connected to the MCU. The battery power detection circuit is also connected to the lithium battery, and the USB power detection circuit is connected to the USB interface. It features low power consumption, high readability, intelligent management, environmental awareness, and accurate time display, providing users with a more convenient, intelligent, and reliable alarm clock experience.

Description

Technical Field

[0001] This utility model relates to the field of alarm clock technology, and more specifically, to an alarm clock based on electronic ink. Background Technology

[0002] Existing alarm clocks, as important tools for time management and daily life assistance, already possess a variety of functions. Traditional alarm clocks primarily remind users of specific times through ringing sounds, helping them to wake up on time, keep appointments, or complete other tasks. Modern alarm clocks, especially smartphone alarm clocks, offer richer features, including recurring reminders, gradual wake-up, customizable ringtones, and sleep tracking, greatly improving the user experience.

[0003] However, these alarm clocks still have significant shortcomings in terms of intelligent environmental temperature and humidity management. For example, they cannot automatically adjust based on indoor temperature, humidity, and other parameters to make the indoor environment more comfortable, nor can they achieve remote control for greater convenience. Utility Model Content

[0004] To address the aforementioned deficiencies in the existing technology, this utility model provides an alarm clock based on electronic ink, comprising:

[0005] The system includes an MCU, a USB power detection circuit, a battery power detection circuit, an accelerometer, a temperature and humidity sensor, a real-time clock control circuit, a buzzer, an e-ink screen, a button circuit, a lithium battery, a 3.3V linear regulator circuit, a USB interface, and a charging management circuit. The USB power detection circuit, battery power detection circuit, accelerometer, temperature and humidity sensor, real-time clock control circuit, buzzer, e-ink screen, USB interface, 3.3V linear regulator circuit, and button circuit are all electrically connected to the MCU. The battery power detection circuit is also connected to the lithium battery. The USB power detection circuit is connected to the USB interface. The USB interface and the lithium battery are both connected to the charging management circuit. The 3.3V linear regulator circuit is also connected to the charging management circuit, the accelerometer, the temperature and humidity sensor, and the real-time clock control circuit.

[0006] Preferably, the MCU includes: FR8008G.

[0007] Preferably, the USB power detection circuit includes: one end of resistor R17 is connected to the collector of transistor Q3, and the base of transistor Q3 is connected to one end of resistor R15 and one end of resistor R16 respectively.

[0008] Preferably, the battery power detection circuit includes: one end of resistor R10 is connected to one end of resistor R13 and one end of capacitor C26 respectively, and the other end of resistor R13 is connected to the other end of capacitor C26 and grounded.

[0009] Preferably, the acceleration sensor includes: one end of the acceleration sensor core is preferably connected to and grounded with one end of capacitor C21 and one end of capacitor C18, and the other end of capacitor C24 is connected to the other end of capacitor C21 and the other end of capacitor C18 respectively.

[0010] Preferably, the temperature and humidity sensor includes: pin 1 of the temperature and humidity sensor U3 is connected to one end of capacitor C22, and the other end of capacitor C22 is grounded.

[0011] Preferably, the real-time clock control circuit includes: pin 3 of the clock management chip U4 is connected to one end of the resistor R7, pin 8 of the clock management chip U4 is connected to one end of the capacitor C23, and the other end of the capacitor C23 is grounded.

[0012] Preferably, the button circuit includes: one end of button K2 is connected to one end of diode D13, one end of button K3 is connected to one end of diode D12, one end of button K4 is connected to one end of diode D11, one end of button K5 is connected to one end of diode D10, and the other end of diode D13 is connected to the other ends of diode D12, diode D11, and diode D10 respectively and grounded.

[0013] Preferably, the charging management circuit includes: pin 1 of the charging management chip U5 is connected to one end of resistor R9 and one end of resistor R11 respectively; the other end of resistor R9 is connected to one end of resistor R8 and one end of capacitor C25 respectively; pin 2 of the charging management chip U5 is connected to one end of resistor R12; pin 5 of the charging management chip U5 is connected to one end of capacitor C27 and pin 1 of lithium battery CN3 respectively; pin 6 of the charging management chip U5 is connected to the negative terminal of diode D9; pin 7 of the charging management chip U5 is connected to the negative terminal of diode D8; and pin 8 of the charging management chip U5 is connected to the positive terminal of diode D8.

[0014] Preferably, the 3.3V linear regulator circuit includes: pin 1 of the linear regulator chip U6 is connected to one end of capacitor C28 and one end of capacitor C29 respectively; pin 2 of the linear regulator chip U6 is connected to one end of capacitor C29 and connected to +3.3V; and pin 3 of the linear regulator chip U6 is connected to the other end of capacitor C28.

[0015] The electronic ink-based alarm clock of this invention has the following beneficial effects:

[0016] It uses an e-ink screen, which has extremely low power consumption and excellent readability, and can clearly display time information even in bright light, greatly improving the user experience;

[0017] With the intelligent management of the MCU, the alarm clock can detect the battery level in real time and realize convenient charging function through the USB interface, effectively avoiding the problem of time display interruption due to power depletion;

[0018] The integrated accelerometer enables the alarm clock to have intelligent wake-up functions, such as automatically adjusting the ringing time or turning off the alarm clock based on the user's movement habits, increasing the flexibility and personalization of use;

[0019] Temperature and humidity sensors can monitor environmental conditions in real time, providing users with accurate environmental information and helping to maintain a healthy life;

[0020] The real-time clock control circuit ensures the accuracy of the alarm clock, maintaining a precise time display regardless of changes in the external environment. The buzzer ensures the alarm clock emits a clear and loud sound when the set time arrives, guaranteeing the user doesn't miss important moments.

[0021] With multiple advantages such as low power consumption, high readability, intelligent management, environmental awareness, and accurate time display, it provides users with a more convenient, intelligent, and reliable alarm clock experience. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort. The utility model will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0023] Figure 1 This is a block diagram of the electronic ink-based alarm clock of this utility model;

[0024] Figure 2 This utility model relates to a USB power detection circuit in an alarm clock based on electronic ink.

[0025] Figure 3 This utility model relates to a battery power detection circuit in an alarm clock based on electronic ink.

[0026] Figure 4 This utility model relates to an accelerometer sensor in an alarm clock based on electronic ink.

[0027] Figure 5This utility model relates to a temperature and humidity sensor in an alarm clock based on electronic ink.

[0028] Figure 6 This utility model relates to a real-time clock control circuit in an alarm clock based on electronic ink.

[0029] Figure 7 This utility model relates to the button circuit in an alarm clock based on electronic ink.

[0030] Figure 8 This utility model relates to a charging management circuit in an alarm clock based on electronic ink.

[0031] Figure 9 This utility model relates to a 3.3V linear voltage regulator circuit in an electronic ink-based alarm clock. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] Please see Figure 1 This is a block diagram illustrating the structure of the electronic ink-based alarm clock of this invention. Figure 1As shown, the electronic ink-based alarm clock provided in the first embodiment of this utility model includes at least an MCU, a USB power detection circuit, a battery power detection circuit, an accelerometer, a temperature and humidity sensor, a real-time clock control circuit, a buzzer, an e-ink screen, a button circuit, a lithium battery, a 3.3V linear regulator circuit, a USB interface, and a charging management circuit. The USB power detection circuit, battery power detection circuit, accelerometer, temperature and humidity sensor, real-time clock control circuit, buzzer, e-ink screen, USB interface, 3.3V linear regulator circuit, and button circuit are all electrically connected to the MCU. The battery power detection circuit is also connected to the lithium battery. The USB power detection circuit is connected to the USB interface. The USB interface and lithium battery are both connected to the charging management circuit. The 3.3V linear regulator circuit is also connected to the charging management circuit, accelerometer, temperature and humidity sensor, and real-time clock control circuit.

[0036] The MCU is the core of the entire alarm clock system, responsible for coordinating and controlling the operation of various modules. It receives data from various sensors, processes it according to preset program logic, and then controls the corresponding actuators (such as buzzers, e-ink displays, etc.) to perform the appropriate operations. The MCU is also responsible for real-time clock management, ensuring that the alarm clock can accurately display the time and provide alarm reminders. In specific implementations, the MCU includes, but is not limited to, the FR8008G.

[0037] The USB power detection circuit detects whether there is power input at the USB port. When a USB cable is plugged in, the circuit detects the voltage change and sends a signal to the MCU, instructing the MCU to perform a charging operation or switch to USB power supply mode. This is crucial for protecting the lithium battery, extending battery life, and ensuring the normal operation of the device. Figure 2 This utility model relates to a USB power detection circuit in an electronic ink-based alarm clock. For example... Figure 2 As shown, the USB power detection circuit includes: one end of resistor R17 is connected to the collector of transistor Q3, and the base of transistor Q3 is connected to one end of resistor R15 and one end of resistor R16 respectively.

[0038] The battery power detection circuit monitors the lithium battery's power status in real time and sends the power information to the MCU. Based on this information, the MCU can determine whether charging is needed or remind the user to replace the battery. This is crucial for ensuring the alarm clock functions correctly in critical moments. Figure 3 This utility model relates to a battery power detection circuit in an alarm clock based on electronic ink. For example... Figure 3 As shown, the battery power detection circuit includes: one end of resistor R10 is connected to one end of resistor R13 and one end of capacitor C26 respectively, and the other end of resistor R13 is connected to the other end of capacitor C26 and grounded.

[0039] An accelerometer is used to detect the alarm clock's motion, such as flipping or shaking. Through this accelerometer, the alarm clock can perform intelligent functions, such as flipping the display and shaking to turn off the alarm. These functions not only enhance the user experience but also increase the alarm clock's fun and interactivity.

[0040] An accelerometer is a sensor that measures the acceleration of an object. Accelerometers are derived by measuring the inertial force of mass and Newton's second law. In alarm clocks, accelerometers are primarily used for the following functions: Measuring tilt angles: By measuring gravitational acceleration, the tilt angle of the device relative to the horizontal plane can be calculated. Tracking motion: Although tracking absolute position using an accelerometer is difficult, the motion state of the device can be tracked by analyzing dynamic acceleration. Measuring vibration: Accelerometers can be used to measure the frequency and amplitude of vibrations, such as detecting earthquake events or measuring the resonant frequency of a building. Figure 4 This utility model relates to an accelerometer sensor used in an electronic ink alarm clock. For example... Figure 4 As shown, the acceleration sensor includes: one end of the acceleration sensor core preferably capacitor C21 and one end of capacitor C18 are connected and grounded, and the other end of capacitor C24 is connected to the other end of capacitor C21 and the other end of capacitor C18 respectively.

[0041] A temperature and humidity sensor monitors the temperature and humidity of the environment surrounding the alarm clock in real time and sends this information to the MCU. The MCU can then display this information on an e-ink screen for the user to view. Furthermore, based on the temperature and humidity information, the alarm clock can also provide intelligent reminder functions, such as high-temperature warnings and excessive humidity alerts. Figure 5 This utility model relates to a temperature and humidity sensor in an alarm clock based on electronic ink. Figure 5 As shown, the temperature and humidity sensor includes: pin 1 of the temperature and humidity sensor U3 is connected to one end of capacitor C22, and the other end of capacitor C22 is grounded.

[0042] A real-time clock control circuit is used to generate and maintain accurate time information. It typically consists of a crystal oscillator, frequency divider, counter, etc., and is capable of generating time information such as seconds, minutes, and hours. By reading the information from the real-time clock control circuit, an MCU can implement functions such as time display and alarm setting. Figure 6 This utility model relates to a real-time clock control circuit in an electronic ink-based alarm clock. For example... Figure 6 As shown, the real-time clock control circuit includes: pin 3 of the clock management chip U4 is connected to one end of the resistor R7, pin 8 of the clock management chip U4 is connected to one end of the capacitor C23, and the other end of the capacitor C23 is grounded.

[0043] A buzzer is a sound actuator used to generate audible alerts. In an alarm clock system, the buzzer is primarily used to sound an alarm at a set time to remind the user to get up or perform other activities. The buzzer's sound can be controlled and adjusted via an MCU (Microcontroller Unit), such as adjusting the volume and sound type.

[0044] E-ink displays are low-power, high-definition screens that offer a paper-like reading experience. In alarm clock systems, e-ink displays are used to show time, date, temperature and humidity information, alarm settings, and more. Because of their extremely low power consumption, e-ink displays can significantly extend the alarm clock's standby time.

[0045] The button circuit is used to receive user input commands, such as setting the time, adjusting the alarm, and viewing information. A button circuit typically includes multiple buttons, each corresponding to a specific function. When a user presses a button, the button circuit sends a signal to the MCU, which then performs the corresponding operation based on the signal. Figure 7 This utility model relates to the button circuit in an alarm clock based on electronic ink. For example... Figure 7 As shown, the button circuit includes: one end of button K2 is connected to one end of diode D13, one end of button K3 is connected to one end of diode D12, one end of button K4 is connected to one end of diode D11, one end of button K5 is connected to one end of diode D10, and the other end of diode D13 is connected to the other ends of diode D12, diode D11, and diode D10 respectively and grounded.

[0046] Lithium-ion batteries are one of the power sources for alarm clock systems, providing power to the alarm clock when USB power is unavailable. Lithium-ion batteries are advantageous due to their small size, large capacity, and light weight, making them a commonly used power source for portable electronic devices. In alarm clock systems, the lithium-ion battery is charged and managed through a battery charging management chip.

[0047] The charging management circuit manages the charging process of the lithium battery, ensuring that it can be charged safely and quickly. It typically features overcharge protection, over-discharge protection, and short-circuit protection to prevent damage or safety accidents during charging. Figure 8 This utility model relates to a charging management circuit in an alarm clock based on electronic ink. For example... Figure 8As shown, the charging management circuit includes: pin 1 of the charging management chip U5 is connected to one end of resistor R9 and one end of resistor R11 respectively; the other end of resistor R9 is connected to one end of resistor R8 and one end of capacitor C25 respectively; pin 2 of the charging management chip U5 is connected to one end of resistor R12; pin 5 of the charging management chip U5 is connected to one end of capacitor C27 and pin 1 of lithium battery CN3 respectively; pin 6 of the charging management chip U5 is connected to the negative terminal of diode D9; pin 7 of the charging management chip U5 is connected to the negative terminal of diode D8; and pin 8 of the charging management chip U5 is connected to the positive terminal of diode D8.

[0048] The USB interface is used to connect a USB cable, enabling the alarm clock to connect to a computer or other USB devices. Through the USB interface, the alarm clock can receive charging current or data signals from the computer, enabling functions such as charging or data transfer.

[0049] The 3.3V linear regulator circuit is used to stabilize the voltage provided by a lithium battery or USB power supply to 3.3V, providing a stable power supply for modules such as MCUs, accelerometers, and temperature and humidity sensors. Linear regulator circuits have advantages such as low cost and high stability. Figure 9 This utility model relates to a 3.3V linear voltage regulator circuit in an electronic ink-based alarm clock. For example... Figure 9 As shown, the 3.3V linear regulator circuit includes: pin 1 of the linear regulator chip U6 is connected to one end of capacitor C28 and one end of capacitor C29 respectively; pin 2 of the linear regulator chip U6 is connected to one end of capacitor C29 and connected to +3.3V; and pin 3 of the linear regulator chip U6 is connected to the other end of capacitor C28.

[0050] exist Figure 1 As can be seen from the data, RTC: BLE8563, temperature and humidity: GXHTC3, and acceleration: QMA6100 are all connected to MCU: FR8008G through the IIC interface. Data lines or interrupt pins are implemented through the built-in functions of the MCU chip.

[0051] exist Figure 3 From the diagram, we can see that capacitor C26 is connected in parallel with resistor R13. One end of resistor R13 is grounded, and the other end of resistor R13 is connected to one end of resistor R10. The other end of resistor R10 is connected to the Li_4.2V+ point, and the other end of resistor R13 is connected to the BAT ADC point. Figure 1 The BAT ADC point is connected to the MCU's AD pin via an I / O interface: FR8008G. Figure 8 , 9 The Li_4.2V+ point is connected to the BAT pin of U5TMI4056E and the VIN pin of U6BL8062CB3TR33. Converting the voltage signal to electrical data is a built-in function of the MCU: FR8008G.

[0052] The SCL pin of the temperature and humidity sensor U3 GXHTC3 is connected to point PA6_SCL, the SDA pin is connected to point PA7_SDA, and the VDD and GND pins of U3 GXHTC3 are grounded. Figure 6 The real-time clock control circuit shows that PA6_SCL and PA7_SDA are connected to the SCL and SDA pins of U4 BLX8563-TRC respectively. The acquisition and transmission of temperature and humidity data are achieved by combining U4 BLX8563-TRC.

[0053] The working principle of this utility model is as follows:

[0054] (1) System power-on initialization:

[0055] When the alarm clock system is connected to a power source (lithium battery or USB power), the MCU will perform a power-on initialization operation. This includes initializing the registers of each module, configuring the clock source, and checking the power status. During the initialization process, the MCU will also check the lithium battery's power level; if the power is low, it will initiate the charging process.

[0056] (2) Real-time clock operation:

[0057] After initialization, the MCU will activate the real-time clock control circuit to generate accurate time information. The real-time clock control circuit continuously updates the second, minute, and hour times and sends this information to the MCU. The MCU then updates the time display on the e-ink screen based on the updated time information.

[0058] (3) Sensor data acquisition:

[0059] The MCU periodically reads data from the accelerometer and the temperature and humidity sensor. The accelerometer detects the alarm clock's movement, such as flipping or shaking; the temperature and humidity sensor detects the temperature and humidity of the environment in which the alarm clock is located. The MCU stores this data in its internal registers and updates the display on the e-ink screen as needed.

[0060] (4) Button handling:

[0061] When a user presses a button, the button circuit sends a signal to the MCU. The MCU determines which button was pressed based on the signal's encoding and performs the corresponding operation. For example, if the user presses the time setting button, the MCU enters time setting mode, allowing the user to adjust the time using the buttons.

[0062] (5) Alarm reminder:

[0063] After the user sets the alarm time, the MCU will determine whether an alarm needs to be sounded based on the time information from the real-time clock control circuit. When the set time arrives, the MCU will control the buzzer to sound an alarm to remind the user. The user can turn off the alarm or perform other operations by pressing a button.

[0064] (6) Power Management:

[0065] The MCU monitors the lithium battery's power level and the USB power connection status in real time. If the lithium battery is low and USB power is available, the MCU initiates the charging process, charging the lithium battery through the lithium-ion battery charging management chip. Simultaneously, the MCU adjusts the system's power consumption mode based on the power status to extend standby time.

[0066] (7) Low power mode:

[0067] To reduce system power consumption, the MCU enters a low-power mode when it doesn't need to frequently update display content or process sensor data. In low-power mode, the MCU shuts down unnecessary modules or reduces their operating frequency, thereby lowering system power consumption. When it's time to update display content or process sensor data, the MCU wakes up from low-power mode and resumes normal operation.

[0068] (8) Data transmission and charging

[0069] When the alarm clock is connected to a computer or other USB device via a USB interface, the MCU can receive data signals from the computer, enabling data transmission. For example, users can transmit alarm clock settings, reminders, and other information to the alarm clock system via their computer. Simultaneously, when the alarm clock is connected to a USB power source, the MCU initiates the charging process, charging the lithium battery through the lithium-ion battery charging management chip.

[0070] The beneficial effects of this utility model, through the design of the above embodiments, are as follows:

[0071] It uses an e-ink screen, which has extremely low power consumption and excellent readability, and can clearly display time information even in bright light, greatly improving the user experience;

[0072] With the intelligent management of the MCU, the alarm clock can detect the battery level in real time and realize convenient charging function through the USB interface, effectively avoiding the problem of time display interruption due to power depletion;

[0073] The integrated accelerometer enables the alarm clock to have intelligent wake-up functions, such as automatically adjusting the ringing time or turning off the alarm clock based on the user's movement habits, increasing the flexibility and personalization of use;

[0074] Temperature and humidity sensors can monitor environmental conditions in real time, providing users with accurate environmental information and helping to maintain a healthy life;

[0075] The real-time clock control circuit ensures the accuracy of the alarm clock, maintaining a precise time display regardless of changes in the external environment. The buzzer ensures the alarm clock emits a clear and loud sound when the set time arrives, guaranteeing the user doesn't miss important moments.

[0076] With multiple advantages such as low power consumption, high readability, intelligent management, environmental awareness, and accurate time display, it provides users with a more convenient, intelligent, and reliable alarm clock experience.

[0077] This utility model has been described based on specific embodiments, but those skilled in the art will understand that various changes and equivalent substitutions can be made without departing from the scope of this utility model. Furthermore, to adapt to specific applications of this utility model, numerous modifications can be made without departing from its protection scope. Therefore, this utility model is not limited to the specific embodiments disclosed herein, but includes all embodiments falling within the protection scope of the claims.

Claims

1. An alarm clock based on electronic ink, characterized in that, include: The system includes an MCU, a USB power detection circuit, a battery power detection circuit, an accelerometer, a temperature and humidity sensor, a real-time clock control circuit, a buzzer, an e-ink screen, a button circuit, a lithium battery, a 3.3V linear regulator circuit, a USB interface, and a charging management circuit. The USB power detection circuit, battery power detection circuit, accelerometer, temperature and humidity sensor, real-time clock control circuit, buzzer, e-ink screen, USB interface, 3.3V linear regulator circuit, and button circuit are all electrically connected to the MCU. The battery power detection circuit is also connected to the lithium battery. The USB power detection circuit is connected to the USB interface. The USB interface and the lithium battery are both connected to the charging management circuit. The 3.3V linear regulator circuit is also connected to the charging management circuit, the accelerometer, the temperature and humidity sensor, and the real-time clock control circuit. The MCU controls the accelerometer, temperature and humidity sensor, buzzer, and e-ink display. The USB power detection circuit detects whether power is connected to the USB port and controls power switching. The battery power detection circuit detects changes in the voltage or current of the lithium battery to determine its remaining power. The accelerometer measures the tilt angle of the alarm clock, tracks its movement, and measures its vibration. The temperature and humidity sensor monitors the ambient temperature and humidity and transmits the data to the MCU in real time for processing and display. The real-time clock control circuit generates a stable time signal and controls the MCU to display the current time on the digital tube or e-ink display. The buzzer sounds the alarm. The e-ink display shows the time, temperature, and humidity information. The button circuit controls the input of the alarm clock. The lithium battery provides a stable DC voltage.

2. The electronic ink-based alarm clock according to claim 1, characterized in that, The MCU includes: FR8008G.

3. The electronic ink-based alarm clock according to claim 1, characterized in that, The USB power detection circuit includes: one end of resistor R17 is connected to the collector of transistor Q3, and the base of transistor Q3 is connected to one end of resistor R15 and one end of resistor R16 respectively.

4. The electronic ink-based alarm clock according to claim 1, characterized in that, The battery power detection circuit includes: one end of resistor R10 is connected to one end of resistor R13 and one end of capacitor C26 respectively, and the other end of resistor R13 is connected to the other end of capacitor C26 and grounded.

5. The electronic ink-based alarm clock according to claim 1, characterized in that, The acceleration sensor includes: pin 8 of acceleration sensor chip U2 is connected to pin 9 of acceleration sensor chip U2, one end of capacitor C24, one end of capacitor C21, and one end of capacitor C18 respectively and grounded; the other end of capacitor C24 is connected to the other end of capacitor C21 and the other end of capacitor C18 respectively.

6. The electronic ink-based alarm clock according to claim 1, characterized in that, The temperature and humidity sensor includes: pin 1 of the temperature and humidity sensor U3 is connected to one end of capacitor C22, and the other end of capacitor C22 is grounded.

7. The electronic ink-based alarm clock according to claim 1, characterized in that, The real-time clock control circuit includes: pin 3 of clock management chip U4 is connected to one end of resistor R7, pin 8 of clock management chip U4 is connected to one end of capacitor C23, and the other end of capacitor C23 is grounded.

8. The electronic ink-based alarm clock according to claim 1, characterized in that, The button circuit includes: one end of button K2 is connected to one end of diode D13, one end of button K3 is connected to one end of diode D12, one end of button K4 is connected to one end of diode D11, one end of button K5 is connected to one end of diode D10, and the other end of diode D13 is connected to the other ends of diode D12, diode D11, and diode D10 respectively and grounded.

9. The electronic ink-based alarm clock according to claim 1, characterized in that, The charging management circuit includes: pin 1 of charging management chip U5 is connected to one end of resistor R9 and one end of resistor R11 respectively; the other end of resistor R9 is connected to one end of resistor R8 and one end of capacitor C25 respectively; pin 2 of charging management chip U5 is connected to one end of resistor R12; pin 5 of charging management chip U5 is connected to one end of capacitor C27 and pin 1 of lithium battery CN3 respectively; pin 6 of charging management chip U5 is connected to the negative terminal of diode D9; pin 7 of charging management chip U5 is connected to the negative terminal of diode D8; and pin 8 of charging management chip U5 is connected to the positive terminal of diode D8.

10. The electronic ink-based alarm clock according to any one of claims 1 to 9, characterized in that, The 3.3V linear regulator circuit includes: pin 1 of the linear regulator chip U6 is connected to one end of capacitor C28 and one end of capacitor C29 respectively; pin 2 of the linear regulator chip U6 is connected to one end of capacitor C29 and connected to +3.3V; and pin 3 of the linear regulator chip U6 is connected to the other end of capacitor C28.

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