TL494 is a voltage-driven pulse width modulation control integrated circuit produced by Texas Instruments, USA, and is mainly used in various switching power supplies. This article introduces how it, ...
PWM: Pulse Width Modulation
It is to periodically control the time (duty cycle) of IO pulling high and low to control the on and off of the switch tube to achieve power control, such as LED dimming, D...
How to use the wireless transceiver module How to use the wireless transceiver module? Which frequency of the wireless transceiver module is better, 2.4G, 315MHz or 433MHz? This is a question that ma...
I am making an electronic password lock. When an error occurs during password input, I want to use clear to delete the bit and display it on 12864. That is, when the clear key is scanned and pressed, ...
[i=s]This post was last edited by lcofjp on 2017-9-13 18:10[/i] [code]#includeint main(int argc, const char * argv[]) { // insert code here... int a = 12, b = 34; a = a ^ b ^ (b=a); printf("a=%d, b=%d...