Good morning everybody. My name is Michele and I’m currently running an IoT project of a remote environmental monitoring system powered by solar panel. The project now is based on a GSM 3G/2G different brand board, but I having hard times making that working consistently, so I’m switching to Electron looking for better chance.
I have already red the other discussion about Electron + solar, but I don’t find a case with solar charge controller. So now I would like to understand if, with my current power configuration and devices, I can stably run an Electron-driven monitoring system, and how.
My system is ‘12V rated’ and I have:
- solar 12V panel, 20 or 30W
- 10A or 20A solar charge regulator (like this: https://www.amazon.it/gp/product/B07R6RJTMT/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
- 12V battery (12 - 15Ah for the simpler monitoring box and 30Ah for the weather stations).
The 12V battery is the main power supply and it is recharged by the solar panel by the solar charge controller.
The solar charge controller has a USB output (rated 5V - 1.2A) and one LOAD output rated same like the power circulating (12V 10A or 12V 20A depending on the rating of the controller).
The average load of our monitoring systems is usually around 200 - 250 mA, in total. They are moisture sensors, temperature sensors like the BME280, and other small sensors for soil and weather. Most of the sensors is highly flexible and can be powered from 3.6V to 30V. The only minor sensor is the SHT31 which can be powered from 3.3 to 5V.
My actual code is: readings of sensors every 5 or 7 minutes, send the reading to our web cloud, shut down the WiFi or 3G connection to save power, then after 5 or 7 minutes restart again the connection, then do readings, etc. etc.
I can have also LiPo battery so I just need to understand, according to your experience, what is the best stable operative configuration to do this.
Many thanks all.