Step 2 Hardware Build - opensolarproject/OSPController GitHub Wiki

Home 1:Parts 2:Hardware 3:Software 4:Data 5:Wiring About

This project supports a few different options for DC-DC power supplies. This is the page for the DPS5005/DPS5020 supplies, the Drok is on a separate page.

Setting up the DPS5005 PSU

dps wiring dps connected
Wiring of the DPS5005 Front of the DPS connected to an ESP32
  • ESP32 GND to DPS's molex pin 1, ground
  • ESP32 GPIO-16(RX) to DPS pin 2
  • ESP32 GPIO-17(TX) to DPS pin 3
  • DO NOT connect anything to DPS pin 4. It can only provide 5V ~50mA, it's an easy way to kill your PSU.
  • Set the DPS baud rate to 19200: hold the up button while powering on the power supply to get into the configuration menu and change it from 9600.

That's it! Connect in your solar panel (with breaker!) to the in- & in+ screw-terminals. Connect out- out+ to your battery (with breaker!) and go to 3:Software.

Video of the hardware build

hardware build video
Hardware build youtube video (youtu.be/8xdS9hcqlIg)

Setting up the Drok

Moved to a separate page: Wiring the drok!