Introduction - If you have any usage issues, please Google them yourself
I installed a 6 bit digital tube with 4 relays the other day, and 4 independent buttons to control the digital tube microcontroller. After installing the digital tube, it was detected by this method. The 6 Yang digital tube, position control using 74hc38 decoder, a control by 74HC245, if we can show 543210, it shows that the single-chip digital control hardware no problem.