Solar cells battery voltage
Voltage from Arduino Analog Pin A0
test for post & get sensor data
Measurements are taken in Italy. Voltage and frequency sensing are obtained using an AC-AC transformer and a divider circuit which reduces the peak voltage to that of Particle Photon's pin range.
smart panel demo
Here are voltages from a series bank of three parallel pairs of 400F, 2.7V supercapacitors regulated by an MSP430 to balance and stay under 7.3V. They are charged from a 5.2W, 9V solar panel.
Readings in Clear Water
Voltage collection module
Shows the counted heart rate with Arduino and sent with ESP8266.
Monitor the voltage level of the Li-Ion battery used on the BB board
Temperature and Humidity
Using a ESP-12E pushing the temperature measured from a DS18S20 to thingspeak every hour.
to collect values of current & voltage
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