0.4871=12.84 12.82 -0.551 on 8-25-2109 11.57 on 11/282:30p 12-7-2019 11.58 V= 0.4064 13.65 V 0.545 0.343 is 10.4 V minimum calculated
RECIBIENDO TEMPERATURAS DE AMBAS CAMARAS DEL SECADOR SOLAR
Solar weather station updated every 5 minutes (esp01, attiny85, BME280)
Vegtronix VH400 sending data through a solar/battery powered XBee. Dry soil triggers my drip irrigation system powered by OpenSprinkler
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A solar battery charger to charge lithium ion (li-ion) 18650, 9V, and coin batteries and Ni-MH AA and AAA batteries.
ESP-32/BME280 combo, solar power with LiPo battery. Location: Immelstetten, Bavaria, Germany.