Closed Postnasal8 closed 2 days ago
It could be many things. Bad wiring, bad config, etc. Without knowing your config and it's impossible to know but looking at your wiring though, I can see that you have the transistor collector going to the esp 3.3 volt side. It should be going to the panel 12 volt side of the resistor.
Oh my days...good catch. Tested it right away, virtual keypad working just great.
👍
I created a prototype on a breadboard, It can read any data regarding alarm status (door sensors, motion detectors, keypad button..etc). However after everything I tried, virtual keypad is not working.
Every component on the board is just as the schematic. R2 and R4 on the picture is 10K, but I also tried with 36K (I didn't had a 33K on-hand, also it should be fine). Also I'm using a KC637 not a PN2222A tranzistor, but afaik it should be good.
Can someone help figure out what could be the issue?