Functional Overview:Implement a 4x4 key matrix. Through key scanning, when a key is pressed, identify the key value, send it through the UART serial port, and display it on the LCD1602.
功能实现:
1. 按键扫描
1. Use USB to convert to RS-232 (TLL level) directly on the hardware. Connect TX to PA10. Connect RX to PA9
2.main.c initialization
int main(void)
{uint8_t *test="turn off LED1";uint8_t *test1="turn o
The circuit is composed of VT1, VT2, capacitors C2, C3, resistors R1, R2, R3, R4, etc., which together form an oscillation circuit. The oscillation frequency is controlled by R6, one end of which is c
[i=s]This post was last edited by Tristan_C on 2022-7-27 09:59[/i]First of all, I would like to thank eeworld and digi-key for giving me the opportunity to take the time to participate in this event.