My lunch box #MMDVM hat has had added 3.5" #Nextion enhanced display to the lid, also added a 24V fan for air circulation. The power to all this is via a 12V to 5V buck converter and the fan is connected to the 12V input to that, and the Pi and MMDVM Dual at is connected to the USB socket with short cable.
Also has room to have a battery bank to be add to it in the future if needed
#dmr2ysf #dmr #digital #hamradio #nextion #mmdvm
From idea to #FreeCAD design to #3Dprinted case and assembled device in a couple of hours - I love rapid prototyping! This is a #nextion display connected to an #esp8266 (d1 mini) interfacing to #HomeAssistant to show temperature and humidity readings for several rooms 😎
#HomeAssistant #esp8266 #nextion #3Dprinted #FreeCAD