In the circuit, OT-V1 is connected to PS2801-4, and then it is connected to STM32 to control on and off. Every time the circuit is switched on and off, the LED always flashes and then goes out. Why?How to solve ?
sudhakaran ポストする June 23, 2020
V1 point a resistance to the ground, select the appropriate resistance value, appropriate control to the best state.
Sakchai Tantapong ポストする June 23, 2020
Jason Jiang ポストする June 23, 2020
Since OT-V1 has no default level, the audion is easy to be interfered. Next, it is pulled down by default to make the audion not conducting by default and will not light up
