N.B. This repository is currently under rework and will be reloaded a third time.
I am merging Soft-Power2-MPPT with my other project
https://github.com/rin67630/Victron_VE_on_Steroids
to harmonize the variables and be able to share data / dashboards and software developments between the two projects.
This is a reload of my project https://github.com/rin67630/Soft-Power-MPPT.
In that first project I have been using small DC-DC buck converters and controled them by injecting a smoothed PWM signal into their voltage potentiometer to build a WiFi enabled MPPT controller.
While the injection technique where working quite good, the tiny buck converters have shown to be very prone to failure in the harsh outside environment.
So I decided to re-launch the project with more robust hardware.
Juntek and Drok (maybe others) sell some interesting cheap but good programmable buck converter modules e.g.:
- DPS3806 (60V/6A boost/buck converter)
https://www.aliexpress.com/item/1005001591485527.html - Juntek B3603 for 20-100W panel class upto 30Vmp (36V/3A buck converter):
https://www.aliexpress.com/item/32872687512.html - Drok D6008 for 100W-200W for panel class up to 48Vmp (60V/8A buck converter)
https://www.aliexpress.com/item/32862110549.html - Drok D6012 for 200W-400W panel class up to 75VVmp (80V/12A buck converter)
https://www.aliexpress.com/item/32863179021.html
*(links only given to identify the modules, you are encouraged to procure the devices from your favourite source)
The project began with https://github.com/rin67630/Drok-Juntek-on-steroids, from which this repository is a fork.
Drok-Juntek-on-Steroids is getting a universal framework to build various solutions around above mentioned programmable power supplies, as of:
- Solar charge controller
- Battery evaluation module
- Programmable loads
and much more...
You are encouraged to have a look there and look at the hardware section on how to build your own device.
(A bit of soldering is required. I am providing a PCB to simplify the wiring.)
It is a self-contained WiFi network enabled MPPT controller with:
- a powerful dashboard in the Internet, accessible from everywhere,
- statistics and long term plotting abilities,
- running on various generally available low-cost DC/DC converters without any "cable spaghetti".
The whole solution is working completely self-contained:
- no power supply required,
- no additional computer or smartphone required,
- no database to maintain,
- nothing else to program,
- no MQTT broker involved
- no Grafana to configure.
The dashboards are running in the cloud at http://thinger.io, where you can create an account free of charge for up to two devices. You can create there very powerful dashboards interactively, and modify them on the fly. Here two examples:
These are only examples of what you can do with Soft-Power2-MPPT and thinger.io...