[i=s]This post was last edited by ddllxxrr on 2015-4-2 08:08[/i] I have 190 E-coins. I want to buy an ARM9 to play with, just the basic configuration... No comments are needed... It would be best if i
Several ways of current sampling1. Use sampling resistors directly and ADC to measure the voltage drop on the resistor without processing circuits such as op amps. 2. Use sampling resistors and ADC to
Taking advantage of the 0-yuan proofing opportunity of Jiali Chuang, I made a few PCB rulers by myself, as shown in the picture. I will send them to you free of charge. If you like them, you can send