My solar powered WSPR beacon is now active on the 12m band! Tech stack: Navitas 100W Solar Panel, Exide Solar Blitz 40AH battery, Skypearll Solar Charge Controller 30A, 200W 20A DC-DC CC CV Buck module (Robu) - set to output 7.5V, Waveshare ESP32-S3 Zero board, Si5351 with 0.5ppm TCXO, GSD-Hacks-v5 amplifier, DFRobot Gravity Digital 5A Relay Module Photos of components involved (for reference): ...
This notebook (aka 'blog') is powered by free solar energy! I was (and am) inspired to start writing again by reading this excellent article by 'LOW←TECH MAGAZINE'. Imitation is the sincerest form of flattery… Tech stack: Navitas 100W Solar Panel, Exide solar charge controller (10A), Exide Solar Blitz 40AH battery, 200W 20A DC-DC CC CV Buck module (Robu), Cuzor Mini Pro RouterUPS (12V), LM2596S DC-DC 24V/12V to 5V 5A Step Down USB module, Raspberry Pi Zero 2W ...