I recently made a board, and the button part is the most troublesome! The button is usually pulled up by 10K. When the button is pressed, it will be grounded and take the low level. The button value w...
void zhengti(void) { for (b=0;b 0 && PCA0L >= TIMEOUT) //The high level lasts for more than 120us { EA = 0; UART_initial();//This sentence has been moved to the top (I don't know if it is correct) ser...
Hello everyone: I am debugging the 485 communication program between STM32 and PC, but now I have a very annoying problem. Please help me! STM32 is connected to an SP3485, which leads to two pins 485A...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:20[/i] My graduation project is about 8-way circuit temperature detection. Now I have several questions: 1. Parameter setting (I don't know i...
SONY Effio-E camera, Effio-E camera, HD SONY Effio-E650 line camera, 650 line HD SONY Effio-E camera, infrared camera, infrared camera, infrared waterproof camera, infrared dome camera, explosion-proo...