A solar battery charger to charge lithium ion (li-ion) 18650, 9V, and coin batteries and Ni-MH AA and AAA batteries.

4 x 65W solar panels in series, Arduino as a sensor board and data upload handled by a ESP8266.

ESP-32/BME280 combo, solar power with LiPo battery. Location: Immelstetten, Bavaria, Germany.

Solar

Monitor and control the homes electrical consumption, heating system and solar.

ESP12-E in a solar-powered case, reading temperature, pressure, humidity and current/voltage of Lipo cell. Positioned in direct sun until 17.00. Inner temperature of enclosure might be a problem for the Lipo.

Casanayan Local Weather Sensors. Barometric pressure and temperature

Solar powered camera and doorbell at Lumley Park middle gate

Wetterdaten aus dem Brühl Solar Powered ESP8266 with BMP180

Replaced with 20c after 801 lost in flood

Solar cells connected in a cube-like shape and exposed to the sun. Depending on the time-of-day (solar incidence) the power generated by each cell may be different.

Ponsel C4E at Chinaman's Point with InSitu AquaTROLL

9/2/21 replaced 90b (3/3/20) Replaced 802 on Buoy 10

Temperaturas do sistema de aquecimento solar

soil moisture sensing system with solar power