Automatic boot circuit and automatic boot device for Android system
An automatic power-on, Android system technology, applied in the direction of measuring device, data processing power supply, measuring flow/mass flow, etc., can solve problems such as affecting the use of the terminal, and the terminal cannot be restarted automatically.
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Embodiment 1
[0029] figure 1 It is a schematic structural diagram of the automatic power-on circuit provided by Embodiment 1 of the present invention.
[0030] refer to figure 1 , the automatic power-on circuit includes:
[0031] One end of the resistor R4 inputs the power supply voltage, and the other end of the resistor R4 is respectively connected to the general input and output port GPIO and the base of the transistor Q2, and the emitter of the transistor Q2 is respectively connected to one end of the resistor R2 and one end of the resistor R3, and the resistor R3 The other end is connected to the power supply voltage;
[0032] The other end of the resistor R2 is connected to the base of the transistor Q1, the collector of the transistor Q1 is respectively connected to one end of the resistor R1 and one end of the button, the emitter of the transistor Q1 is grounded, and the other end of the button is grounded.
[0033] In this embodiment, after the power is plugged in through the a...
Embodiment 2
[0050] figure 2 and image 3 It is a schematic diagram of the automatic boot device of the Android system provided by Embodiment 2 of the present invention.
[0051] refer to figure 2 and image 3 , the automatic boot device of the Android system, including the automatic boot circuit 10, and also includes the terminal 20 installed with the Android system.
[0052] One end of the button in the automatic power-on circuit 10 is connected with the terminal 20 .
[0053] The operation of the Android system in the terminal 20 is controlled by activating the keys in the automatic boot circuit 10 . The other end of the button is grounded.
[0054] When the button is pressed, the other end of the button is short-circuited to the ground, that is, the other end of the button is short-circuited to the ground once, that is, the button is pressed once.
[0055] The embodiment of the present invention provides an automatic power-on circuit and an automatic power-on device for an Andr...
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