- on Hobby & Modelling
- Published in issue 9/2015 on page 96
Over-Air LiPo Battery State Monitor
Zigbee’d measurement of voltage, temperature, and current up to 170 amps
The board described here measures the voltage and the current up to 170 A supplied by the battery in your scale model, then transmits these data via radio to your remote-control transmitter, or via USB to a Qt (say: cutie) application on a PC.
Technical specifications • Compatible with LiPo batteries from 2S (7.4 V) up to 6S (22.1 V) • Continuous current 80 A, 170 A for a few seconds • Current measuring range: 0 – 170 A • Insertion resistance 1 m? in the battery ‘positive’ line • Temperature measurement built in to the board • Connections: direct soldered, PK or DEAN sockets • Provides measurements of voltage and current with calculation of instantaneous power drawn • Summing of current supplied • Compatible with previously published 2.4. GHz Transceiver  • Open communication interfaces: USB, UART, I²C, 1-Wire • ZigBee compatible 2.4 GHz technology • Line-of-sight range of over 100 m (300 ft) or over 1 km (3,000 ft), depending on type of radio module.