Box for ESP32 with relay
by BenGonGon
A waterproof box for an ESP32 module with power supply and relay. It's to make a WiFi controllable extension cable. The box is made for the X-HX0293A circuit. Then you'll need to install Tasmota on it using a usb->serial port  (jumper on 5V, RX on TX, TX on RX and don't forget vcc and gnd)(IO 0 for the pushbutton, IO 16 for the relay). Use 3 mm, 16 mm wood screws for the wire clamp. For the cover, use 3mm wood screws 10mm long. For the circuit, use motherboard screws with heads that are not too large. PLA for the case and wire clamp, TPU for the gasket, something translucent and dark gives the best effect for the cover because of the red LEDs on the circuit. Otherwise, you'll need a one-meter extension cord with a plug and socket that match your region, and the wire diameter should be 7mm. On the outside, where the wire comes out, a little glue will help to seal it.