7S 18650 Li-po Lithium Battery Capacity Indicator Module M5Stack COM.NB-IoT Module (SIM7020G) with antenna Open Serial Terminal: Use Arduino

Open Serial Terminal: Use Arduino IDE Serial Monitor

Is the wireless remote control secure against hacking or signal jamming

Full instructions included in the box

The 7x2 cm wheels are specifically designed to fit standard 200 RPM gear motors

For GPRS connectivity

7S 18650 Li-po Lithium Battery Capacity Indicator Module M5Stack COM.NB-IoT Module (SIM7020G) with antenna Open Serial Terminal: Use Arduino7S 18650 Li po Lithium Battery Capacity Indicator Module This is 1S 18650 Li po Lithium Battery Capacity Indicator Module. This battery type capacity indicator module display shows the display is more intuitive and more beautiful. A wider range of applications, nickel metal hydride batteries, 18650 and polymer lithium battery packs, lead acid storage, electric vehicle batteries, electric equipment can be used. This display has a reverse connection