Need help wiring with esp32 and bmp280
Posted: Wed Sep 16, 2020 5:33 pm
Hello there, as you can tell from my introduction I am pretty inexperienced in wiring and such and I was wiring 3 esp32 to 3 bmp280 sensors and for 2 of them no problem, but for the one I am already using for controlling the relays as in the ledgardener videos I have a question..
So the question is, on my esp the 3.3v pin is already used by the relay board, and i would like to add the bmp280 which uses one 3.3v too.. Do I need another step-down board to do the 3.3 line or can I give from the esp 3.3v to the relay and the bmp280 as well? I mean 2 wires from one 3.3v pin.. Sorry if I explained bad and my bad english
And I tryed to search on the forum and did not find a post about this but if it is present I will delete and apologize.. Thx a lot to anyone who will help..
So the question is, on my esp the 3.3v pin is already used by the relay board, and i would like to add the bmp280 which uses one 3.3v too.. Do I need another step-down board to do the 3.3 line or can I give from the esp 3.3v to the relay and the bmp280 as well? I mean 2 wires from one 3.3v pin.. Sorry if I explained bad and my bad english
And I tryed to search on the forum and did not find a post about this but if it is present I will delete and apologize.. Thx a lot to anyone who will help..