This year's COVID-19 pandemic has caused more people to work from home, which has accelerated the deployment and adoption of the new Wi-Fi standard, Wi-Fi 6. Consumers are starting to upgrade their ho
In serial communication, both parties are required to use a standard interface so that different devices can be easily connected for communication. The RS-232 communication standard defines a 25-pin i
I would like to ask: The PWM signal from the 28335 chip is always at a high level, and the signal coming out of the board is also at a high level. Why is this?