【Renovation of old things】 Finished product of graffiti desk lamp - DIY/Open Source Hardware Zone - Electronic Engineering World - Forum (eeworld.com.cn)
The lamp tube is back today. I replaced it wit
[size=4]As an experienced embedded systems developer, with experience in both large systems (Boeing 777 flight controls) and small one-person projects (laptop thermal fan control), one should avoid th
It uses 4 digits to display the number of steps, and the sensor uses an ordinary switch. Each time the switch is pressed, it counts once. It needs 74LS390 74LS247 74LS08 and other components. Which he