Modular ESP32 Box with Battery

Battery and ESP32 Holder, designed for these components:

AZDelivery ESP32 Dev Kit C V4 NodeMCU:
https://amzn.eu/d/6SGyJsc

AZDelivery 18650 Battery Expansion Shield V3:
https://amzn.eu/d/eqbEHcM

You can slide different addons onto the base to allow the usage of different sensors.
The base is originally developed to hold an ESP32, which WiFi and bluetooth capabilities allows the creation of BLE GPS and other smart Infrastructure Software in scaled format.

The traffic light uses:
AZDelivery LED Ampel Modul Creative DIY Mini-Ampel 3,3-5V 8mm:
https://amzn.eu/d/2osGAm5