Take a look at one of @psoro’s projects at Automatic scheduler. ESP-01 with 4 Time Input Widgets
There is a link to bare 3V relays and @psoro uses a transistor to switch the 5V relay from a 3.3V ESP01.
Take a look at one of @psoro’s projects at Automatic scheduler. ESP-01 with 4 Time Input Widgets
There is a link to bare 3V relays and @psoro uses a transistor to switch the 5V relay from a 3.3V ESP01.