Quick one for you Arduino guys… before I smoke a board
I have an ESP8266 controller that I want to power with / and control an ATX power supply. Turns out the ESP board only has a 3.3v power pin (but allows USB power through the USB plug presumably at 5v) and the ATX hot bus is 5v.
Will powering the ESP board with the ATX 5v smoke the board? If yes, can I just add a resistor on the line and drop the 5V down to 3.3? If it’s then at 3.3, will there be enough power to switch the ATX main bus on as well as power 4 relays that will drive the 12v ATX leads?