@pugwash On reconsideration, Eastern US is -5 hrs vs GMT. Therefore I believe I should use -18000 for time zone off set and +3600 for summer offset...

@pugwash How does the summertime adjust work. I am on the east coast USA and time.gov says my offset is -4 hrs from UTC in April (EDST). If I use ...

Ok, figured out what was happening when used power supply to trigger inputs to L298 while rest powered by battery. The scope was tying the earth grou...

Kind of late to the party, but IO4 controls the white LED. You can test by just powering up esp32 with 3.3v and ground and putting a high on IO4 pin...

If you like Arduinos and ESP32s, check out Lots of great tutorials and several on the ESP32 cam last done by Bill. Well explained and step thru al...

I suppose if you are going to use resistors, one could also string a series of them in a multistage voltage divider and connect switches at each junct...

Many of the battery packs in laptops use about 9 18650 cells. Most are good quality and you can usually salvage several good ones from old packs. So...