MMDVM hotspot with built-in power bank for portable operations

thingiverse

This is the prototype for an integrated MMDVM hotspot and power bank with a massive 5200mAh capacity in one sleek case. The DV module with SMA antenna isn't my first choice, but I'm using what I have on hand since I don't own a module with a built-in antenna yet. All parts of this enclosure were designed to fit perfectly without any gaps, as it's intended for use on a bicycle where even the slightest rattle can be annoying. If you decide to print this out immediately, be prepared to do some manual sanding depending on the material used to ensure a smooth fit. I deliberately kept the MMDVM module display-free to minimize power consumption, but you can easily connect an external OLED or Nextion display to the corresponding pins on the board while it's powered by a wall charger. Here are the components I've used: - Dual Micro USB 18650 Lithium Li-ion Battery Charger Module 5V 1A 2.1A - Pair of 18650 Lithium Li-ion Batteries, 3.7V - MMDVM Simplex - Raspberry Pi Zero W