张三叔

Solenoid_Driver_V1.5

Overview

This project is suitable for the key feedback function of qmk firmware. The default value of input is 5v/500ma(max) and the default value of output is 9v/278ma(max).
The input pin (pin 5v, pin G) is connected to DC 5v, the signal pin (pin s) is the enable pin and is triggered by high level, and the output pin (pin 9v, pin -) is connected to the electromagnet coil.
This project is only an electromagnet coil drive module with voltage boosting and current limiting functions. Please refer to the text description in the schematic diagram for debugging the voltage boosting and current limiting parameters.
For details on the control signal switch and length, please refer to the official wiki description of the qmk firmware.
The attachment is the qmk firmware and button matrix diagram for testing. The main control is atmega32a, row 2 col
row(d0,d1,d5,d6,d7,c0,c1,c1) col(b2,b1,b0,a0,a1,a2 ,a3,a4,a5,a6,a7,c7,c6,c5)
The ESC key has been changed to a function switch key

Design Files

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Update:2025-05-08 06:23:14

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