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Homemade wireless numeric keyboard

Overview

Introductory video address: https://www.bilibili.com/video/BV1p3411G7bW
Attached is the shell 3D printing file

K375S button matrix diagram

and part of the component shopping list:

Code part:

#include #include "intrins.h" //One pin of the rotary encoder is connected to the interrupt 1 pin, and the other pin is connected to the ordinary IO port //The interrupt 1 pin is P3^3sbit PIN1=P3^4;sbit F11=P1^2;sbit F12=P1 ^3;void Delay10ms() //@11.0592MHz{ unsigned char i, j; i = 108; j = 145; do { while (--j); } while (--i);} void inte_start (void) { EA=1; //Turn on the total interrupt EX1=1; //Turn on the external interrupt 1 trigger switch IT1=1; //External interrupt 1 is a falling edge trigger F11=0; F12=0; } void exint0() interrupt 2 //INT1 interrupt entry { if(PIN1==0) { F12=1; //Assume that the encoder rotates forward Delay10ms(); F12=0; } else if(PIN1==1) { F11=1; //Assume Encoder reverse Delay10ms(); F11=0; } } int main (void) { inte_start ();//Interrupt initialization, only need to run once while(1); }

Design Files

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Update:2025-06-27 19:53:49

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