solder the headers on, use the jumpers to connect the GPIO’s

(Don’t connect GPIO16, we’ll wire it to GPIO5 instead with a wire, directly)

Reference the kernelcon smartplug guide for flashing instructions:


Here are some additional screenshots


The below image shows using relay1 as GPIO16, we will not do that, please use GPIO5 instead!

ESP12F_Relay_X4 (Manual)
esp-12F_relay_x4_relay board (notes)