Wireless card reader

Abstract

The utility model discloses a wireless card reader which comprises a main controller, a power supply module, an OLED display module, a card reading module, a wireless communication module, a key module and a buzzer module. The main controller comprises a chip U1, a fifth pin and a sixth pin of the chip U1 are connected with a crystal oscillator Y1, one end of the crystal oscillator Y1 is connected with a capacitor C9, the other end of the crystal oscillator Y1 is connected with a capacitor C12, a twelfth pin of the chip U1 is connected with a resistor R7, and the resistor R7 is connected with a key S1. A No.39 pin of the chip U1 is connected with a resistor R27, a No.21 pin of the chip U1 is connected with a resistor R2, a No.22 pin of the chip U1 is connected with a resistor R3, and a capacitor touches 0.1 second for awakening, so that key loss and health risk are avoided, and the service life of a screen is prolonged; the modular architecture realizes free combination of card swiping and NFC functions, and the customization requirements are met.

Description

Technical Field

[0001] This utility model relates to a wireless card reader. Background Technology

[0002] With the trend towards intelligent living scenarios, traditional card readers have revealed significant limitations. Their interaction relies on physical buttons, which are prone to wear and tear and pose hygiene risks; complex wiring restricts mobility; and fixed functions cannot adapt to the diverse needs of smart peripherals and other scenarios. The new touch-sensitive wireless card reader innovates with user experience at its core: employing capacitive touch technology, a 0.1-second touch wakes the dormant screen, greatly extending its lifespan; its internal modular architecture allows for flexible combinations of card swiping and NFC functions, meeting customized needs in scenarios such as laboratories. Its lightweight design enables a convenient "touch-to-connect" ecosystem, promoting seamless interaction into daily life. Utility Model Content

[0003] The purpose of this invention is to provide a wireless card reader with a modular architecture that supports free switching between card swiping and NFC, making it suitable for laboratory and other scenarios.

[0004] The above objectives are achieved through the following technical solutions:

[0005] The wireless card reader comprises: a main controller, a power module, an OLED display module, a card reader module, a wireless communication module, a button module, and a buzzer module.

[0006] The wireless card reader is characterized in that: the main controller includes a chip U1, pins 5 and 6 of the chip U1 are both connected to a crystal oscillator Y1, one end of the crystal oscillator Y1 is connected to a capacitor C9, the other end of the crystal oscillator Y1 is connected to a capacitor C12, pin 12 of the chip U1 is connected to a resistor R7, and the resistor R7 is connected to a button S1. Pin 39 of the chip U1 is connected to a resistor R27, pin 21 of the chip U1 is connected to a resistor R2, pin 22 of the chip U1 is connected to a resistor R3, pin 7 of the chip U1 is connected to a capacitor C5, the capacitor C5 is connected to a resistor R1, and the resistor R1 is connected in parallel with a switching diode D1.

[0007] The wireless card reader is characterized in that: the power module includes chips U5, U6, and U7; pin 3 of chip U6 is connected to resistor R15; pin 2 of chip U6 is connected to resistor R16; pin 1 of chip U6 is connected to the negative terminal of Schottky diode D4 and the positive terminal of Schottky diode D5; the negative terminal of Schottky diode D5 is connected to pin 3 of chip U5, the positive terminal of capacitor C26 and electrolytic capacitor C27; capacitor C26 is connected in parallel with electrolytic capacitor C27; pin 2 of chip U5 is connected to the positive terminal of capacitor C25 and electrolytic capacitor C28; capacitor C25 is connected in parallel with electrolytic capacitor C28. Pin 4 of chip U7 is connected to capacitor C24 and resistor R12. Capacitor C24 is connected to the negative terminal of electrolytic capacitor C19. The positive terminal of electrolytic capacitor C19 is connected to resistor R12. Pin 5 of chip U7 is connected to resistor R12 and inductor L1. Pin 1 of chip U7 is connected to the positive terminal of Schottky diode D2 and inductor L1. The negative terminal of Schottky diode D2 is connected to resistor R14, capacitor C18, and capacitor C20. Pin 3 of chip U7 is connected to capacitor C18. Resistor R14 is connected to resistor R18. Resistor R18 is connected to capacitor C20, capacitor C24, the negative terminals of electrolytic capacitor C19, and the negative terminal of electrolytic capacitor C23.

[0008] The wireless card reader is characterized in that: the OLED display module includes chips Q1 and U3; pins 2, 13, 15, 18, 19, 23, 24, 25, 26, and 27 of chip Q1 are all connected to capacitor C7; pins 11 and 12 of chip Q1 are also connected to capacitor C7; pin 28 of chip Q1 is connected to resistor R4; pin 29 of chip Q1 is connected to capacitor C10; and pin 30 of chip Q1 is connected to capacitor C8. Pin 4 of chip U3 is connected to capacitor C11.

[0009] The wireless card reader is characterized in that: the card reader module includes a chip U4, pin 4 of the chip U4 is connected to the positive terminals of capacitor C13 and electrolytic capacitor C15, the positive terminal of electrolytic capacitor C15 is connected to the negative terminal of Schottky diode D7, the positive terminal of Schottky diode D7 is connected to resistor B1 and the positive terminal of electrolytic capacitor C14, and the negative terminal of electrolytic capacitor C14 is connected to resistor B2.

[0010] The wireless communication module includes a chip Z1. Pin 20 of the chip Z1 is connected to the negative terminals of capacitor C22 and electrolytic capacitor C21, and pin 21 of the chip Z1 is connected to the positive terminals of capacitor C22 and electrolytic capacitor C21. The electrolytic capacitor C21 is connected in parallel with capacitor C22.

[0011] The wireless card reader is characterized in that: the button module includes chips U9 and U10, pin 3 of chip U9 is connected to resistor R5, and pin 3 of chip U10 is connected to resistor R6.

[0012] The wireless card reader is characterized in that: the buzzer module includes a buzzer BUZZER1, the positive terminal of the buzzer BUZZER1 is connected to a resistor R17 and the negative terminal of a switching diode D8, the negative terminal of the buzzer BUZZER1 is connected to the positive terminal of the switching diode D8, the resistor R17 is connected to the collector of a PNP transistor Q2, and the base of the PNP transistor Q2 is connected to a resistor R28.

[0013] Beneficial effects: This utility model addresses the problems of easily damaged physical buttons, complex wiring, and fixed functions in traditional card readers by enhancing value through three major innovations: 0.1-second wake-up via capacitive touch, avoiding button wear and hygiene risks and extending screen life; modular architecture that allows for free combination of card swiping and NFC functions to meet customized needs; and lightweight wireless design that eliminates wiring limitations, builds a convenient interactive ecosystem, enhances device mobility and scenario adaptability, and optimizes user experience. Attached Figure Description

[0014] Appendix Figure 1 This is a structural diagram of the product.

[0015] Appendix Figure 2 This is the circuit diagram of the main controller for this product.

[0016] Appendix Figure 3 This is the circuit diagram of the power module for this product.

[0017] Appendix Figure 4 This is the circuit diagram of the OLED display module for this product.

[0018] Appendix Figure 5 This is the circuit diagram of the card reader module for this product.

[0019] Appendix Figure 6 This is the circuit diagram of the wireless communication module of this product.

[0020] Appendix Figure 7 This is the circuit diagram of the button module for this product.

[0021] Appendix Figure 8 This is the circuit diagram of the buzzer module for this product. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] The main controller includes chip U1. Pins 5 and 6 of chip U1 are both connected to crystal oscillator Y1. One end of crystal oscillator Y1 is connected to capacitor C9, and the other end of crystal oscillator Y1 is connected to capacitor C12. Pin 12 of chip U1 is connected to resistor R7, and resistor R7 is connected to button S1. Pin 39 of chip U1 is connected to resistor R27, pin 21 of chip U1 is connected to resistor R2, pin 22 of chip U1 is connected to resistor R3, and pin 7 of chip U1 is connected to capacitor C5. Capacitor C5 is connected to resistor R1, and resistor R1 is connected in parallel with switching diode D1.

[0024] The power module includes chips U5, U6, and U7. Pin 3 of chip U6 is connected to resistor R15, pin 2 of chip U6 is connected to resistor R16, pin 1 of chip U6 is connected to the cathode of Schottky diode D4 and the anode of Schottky diode D5. The cathode of Schottky diode D5 is connected to pin 3 of chip U5, the anode of capacitor C26 and electrolytic capacitor C27, with capacitor C26 connected in parallel with electrolytic capacitor C27. Pin 2 of chip U5 is connected to the anode of capacitor C25 and electrolytic capacitor C28, with capacitor C25 connected in parallel with electrolytic capacitor C28. Pin 4 of chip U7 is connected to capacitor C24 and resistor R12. Capacitor C24 is connected to the negative terminal of electrolytic capacitor C19. The positive terminal of electrolytic capacitor C19 is connected to resistor R12. Pin 5 of chip U7 is connected to resistor R12 and inductor L1. Pin 1 of chip U7 is connected to the positive terminal of Schottky diode D2 and inductor L1. The negative terminal of Schottky diode D2 is connected to resistor R14, capacitor C18, and capacitor C20. Pin 3 of chip U7 is connected to capacitor C18. Resistor R14 is connected to resistor R18. Resistor R18 is connected to capacitor C20, capacitor C24, the negative terminals of electrolytic capacitor C19, and the negative terminal of electrolytic capacitor C23.

[0025] The OLED display module includes chips Q1 and U3. Pins 2, 13, 15, 18, 19, 23, 24, 25, 26, and 27 of chip Q1 are all connected to capacitor C7. Pins 11 and 12 of chip Q1 are also connected to capacitor C7. Pin 28 of chip Q1 is connected to resistor R4. Pin 29 of chip Q1 is connected to capacitor C10, and pin 30 of chip Q1 is connected to capacitor C8. Pin 4 of chip U3 is connected to capacitor C11.

[0026] The card reader module includes a chip U4. Pin 4 of the chip U4 is connected to the positive terminals of capacitor C13 and electrolytic capacitor C15. The positive terminal of electrolytic capacitor C15 is connected to the negative terminal of Schottky diode D7. The positive terminal of Schottky diode D7 is connected to resistor B1 and the positive terminal of electrolytic capacitor C14. The negative terminal of electrolytic capacitor C14 is connected to resistor B2.

[0027] The wireless communication module includes chip Z1. Pin 20 of chip Z1 is connected to the negative terminal of capacitor C22 and electrolytic capacitor C21, and pin 21 of chip Z1 is connected to the positive terminal of capacitor C22 and electrolytic capacitor C21. Electrolytic capacitor C21 is connected in parallel with capacitor C22.

[0028] The button module includes chips U9 and U10. Pin 3 of chip U9 is connected to resistor R5, and pin 3 of chip U10 is connected to resistor R6.

[0029] The buzzer module includes a buzzer BUZZER1. The positive terminal of buzzer BUZZER1 is connected to resistor R17 and the negative terminal of switching diode D8, while the negative terminal of buzzer BUZZER1 is connected to the positive terminal of switching diode D8. Resistor R17 is connected to the collector of PNP transistor Q2, and the base of PNP transistor Q2 is connected to resistor R28. This invention features capacitive touch control with 0.1-second wake-up, avoiding button wear and hygiene risks, and extending screen lifespan. Its modular architecture allows for flexible combinations of card swiping and NFC functions to meet customized needs. The lightweight wireless design eliminates wiring limitations, builds a convenient interactive ecosystem, enhances device mobility and scenario adaptability, and optimizes the user experience.

Claims

1. A wireless card reader, characterized in that: The system includes a main controller, a power module, an OLED display module, a card reader module, a wireless communication module, a button module, and a buzzer module. The main controller includes a chip U1, with pins 5 and 6 of the chip U1 connected to a crystal oscillator Y1. One end of the crystal oscillator Y1 is connected to a capacitor C9, and the other end of the crystal oscillator Y1 is connected to a capacitor C12. Pin 12 of the chip U1 is connected to a resistor R7, which is connected to a button S1. Pin 39 of the chip U1 is connected to a resistor R2, pin 21 of the chip U1 is connected to a resistor R2, pin 22 of the chip U1 is connected to a resistor R3, and pin 7 of the chip U1 is connected to a capacitor C5. Capacitor C5 is connected to a resistor R1, and a switching diode D1 is connected in parallel with the resistor R1.

2. The wireless card reader according to claim 1, characterized in that: The power module includes chips U5, U6, and U7. Pin 3 of chip U6 is connected to resistor R15, pin 2 of chip U6 is connected to resistor R16, pin 1 of chip U6 is connected to the negative terminal of Schottky diode D4 and the positive terminal of Schottky diode D5, the negative terminal of Schottky diode D5 is connected to pin 3 of chip U5, the positive terminal of capacitor C26 and electrolytic capacitor C27, and capacitor C26 is connected in parallel with electrolytic capacitor C27; pin 2 of chip U5 is connected to the positive terminal of capacitor C25 and electrolytic capacitor C28, and capacitor C25 is connected in parallel with electrolytic capacitor C28; pin 4 of chip U7 is connected to capacitor... C24 and resistor R12 are connected. Capacitor C24 is connected to the negative terminal of electrolytic capacitor C19. The positive terminal of electrolytic capacitor C19 is connected to resistor R12. Pin 5 of chip U7 is connected to resistor R12 and inductor L1. Pin 1 of chip U7 is connected to the positive terminal of Schottky diode D2 and inductor L1. The negative terminal of Schottky diode D2 is connected to resistor R14, capacitor C18, and capacitor C20. Pin 3 of chip U7 is connected to capacitor C18. Resistor R14 is connected to resistor R18. Resistor R18 is connected to capacitor C20, capacitor C24, the negative terminals of electrolytic capacitor C19, and the negative terminal of electrolytic capacitor C23.

3. The wireless card reader according to claim 1, characterized in that: The OLED display module includes chips Q1 and U3. Pins 2, 13, 15, 18, 19, 23, 24, 25, 26, and 27 of chip Q1 are all connected to capacitor C7. Pins 11 and 12 of chip Q1 are also connected to capacitor C7. Pin 28 of chip Q1 is connected to resistor R4. Pin 29 of chip Q1 is connected to capacitor C10. Pin 30 of chip Q1 is connected to capacitor C8. Pin 4 of chip U3 is connected to capacitor C11.

4. The wireless card reader according to claim 1, characterized in that: The card reader module includes a chip U4. Pin 4 of the chip U4 is connected to the positive terminals of capacitor C13 and electrolytic capacitor C15. The positive terminal of electrolytic capacitor C15 is connected to the negative terminal of Schottky diode D7. The positive terminal of Schottky diode D7 is connected to resistor B1 and the positive terminal of electrolytic capacitor C14. The negative terminal of electrolytic capacitor C14 is connected to resistor B2.

5. The wireless card reader according to claim 1, characterized in that: The wireless communication module includes a chip Z1. Pin 20 of the chip Z1 is connected to the negative terminals of capacitor C22 and electrolytic capacitor C21, and pin 21 of the chip Z1 is connected to the positive terminals of capacitor C22 and electrolytic capacitor C21. The electrolytic capacitor C21 is connected in parallel with capacitor C22.

6. The wireless card reader according to claim 1, characterized in that: The button module includes chips U9 and U10. Pin 3 of chip U9 is connected to resistor R5, and pin 3 of chip U10 is connected to resistor R6.

7. The wireless card reader according to claim 1, characterized in that: The buzzer module includes a buzzer BUZZER1. The positive terminal of the buzzer BUZZER1 is connected to a resistor R17 and the negative terminal of a switching diode D8. The negative terminal of the buzzer BUZZER1 is connected to the positive terminal of the switching diode D8. The resistor R17 is connected to the collector of a PNP transistor Q2. The base of the PNP transistor Q2 is connected to a resistor R28.

Images