ESP-WROOM-32 on a selfmade PCB-layout with an BME280 sensor. Powered by an 1W 6V Solarcell and a 2000mAh LiPo Battery. The device is up for 1300ms and sleeps 10 minutes. The current while sleeping is about 11µA and at uptime about 100mA.

PT-BR: Protótipo de monitoramento para um sistema de bombeamento fotovoltaico. EN-US: Monitoring prototype for a photovoltaic pumping system.

Voltage Current INA219

Readings from a PowerBlade power meter through an ESP32 BLE Gateway

Power Supply in Porthmadog

Power Supply in Bishops Cleeve

Temperatur Baum Low Power

Pembacaan tegangan Arduino

Sending Sensor data values to the ThingSpeak channel for Remote monitoring.

Holgers Weatherlogger in Hagen(Germany).

SSU EE Senior Project

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