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.

Pond

Readings in Clear Water

Voltage sensor

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