Like many people I had a traditional AC-DC UPS supplying power to my home network. One day I awoke it it beeping away and running on battery power even though the mains power was present. And then it died. So I did what any maker...
I have managed to get the current to readout properly as well, this was pretty strait forward to get it to display sometime, less so to get it to display a correct current. There is an interesting issue with bringing power up and down on this TI MCU...
Just a quick update......but nothing useful really.The Supercaps that were ordered from AliExpress on 22nd Dec still haven't arrived, although other items ordered on the same day have arrived. So it shouldn't be too long before I can complete the module...
Here is the concept as I am currently thinking: Two identical solar panels are exposed to the same irradiation, and on both panels, the output power is measured. The first panel is a control, and it will be set to operate at the maximum power point (for...
I did a lot of online research when I started this project and pored over earlier efforts by Julian Ilett, Debasish Dutta, Lukas Fässler, kjoehass and Ant. I appreciate their efforts to document their work and their great designs, and sometimes...
The satellite is being developed by Fossa Systems, a non-profit juvenile association based in Madrid. The satellite is set to launch in Q2 of 2019 and will transmit LoRa and RTTY signals for anyone to receive using inexpensive LoRa modules, information...
The LTC4162 ICs are attractive as they provide the following benefits:Wide Charging Input Voltage Range: 4.5V to 35VHigh Efficiency Synchronous Operation>16-Bit Digital Telemetry System Monitors VBAT, IBAT, RBAT, TBAT, TDIE, VIN, IIN, VOUTCharges multiple...
Here are some initial information about the main PCB. It contains a GSM or LoRa radio module, a solar MPPT charger, a possibility to use the connected solar cell as a pyranometer, a stepper motor driver for the correct alignment of the...
Initial PCB routing is competed and I am working cleaning up traces and adding text to silkscreen for headers etc.All three boards pass design rules checks.LRMS LoRa Transceiver R2LRMS LoRa Gas Sensor R2MPPT Solar Power Module R2
After adding a second solar panel 😎 (170W, just like the first), I observed that when connected in parallel, the total power generated, as measured by the EPEVER 1210AN, was approximately 130W. This was the same as the power generated by a single...
Introducing the solar LAB project!!This project has a main goal of creating sustainable and off grid Homelabs. With the new versions of my MPPT solar charge controller design Using the open source Project Fugu firmware, which has been developed...
A long time ago (man, almost 1.5 years ago) I tried my hand at a SEPIC, with mixed results. While the topology indeed works as a MPPT, the two inductors required by the topology made the cost quickly go out of budget (switching at 31kHz). So, I canned...
Here is a rough overall system diagram for the project. Various atmospheric sensors are interfaced to an mbed (probably one of the ST Nucleo boards because they're cheap, have much I/O and I like them) which acts as a sensor interface for the Pi Zero,...
Before working on the circuit design of the MPPT it is a good idea to simulate the PV system and create a preliminary proof of concept. The software used to simulate the system is Matlab Simulink. All the related scripts can be found in the following...