Steve’s latest DirtyPCBs project, a wireless MQTT battery monitor: This board uses an ESP8266 (ESP12), a Texas Instruments INA226 I2C voltage and current monitor, and a Texas Instruments LMR12010X buck converter. This board is designed to wirelessly monitor 12 volt … Read more
Tag Archives: batteries
Here’s a project that let’s you measure the internal resistance of Lithium Polymer batteries. It measures the total current as the battery discharges through a 1 Ohm resistor. From the known voltage and the discharge current the internal resistance can … Read more
Seeed Studio has posted a guide to powering your projects off the grid. Battery, wind, hydro, solar, they’ve got it covered.