Live BMS icon Live BMS
Browser installer · no app required

Turn a $10 gadget into your Live BMS Link

Buy a blank M5Stack AtomS3 Lite, plug it into this computer, and flash the Live BMS firmware right here in the browser. No separate app, no driver pack, no SD card.

How to flash one

Four steps. The hard part is the cable, not the software.

1

Get an M5Stack AtomS3 Lite. Any blank one works — you're about to put Live BMS firmware on it. Buy one here: M5Stack AtomS3 Lite.

As an Amazon Associate, Live BMS earns from qualifying purchases.

2

Plug it into this computer with a USB-C data cable. The AtomS3's port is USB-C, so you need either USB-C to USB-C or USB-A to USB-C, depending on your computer's ports — and it must be a data cable, not a charge-only one. Charge-only cables are common and look identical; if nothing happens when you plug in, the cable is the first suspect.

3

Click Install below. This only works in Chrome or Edge on a computer. Phones and Safari can't flash over USB — open this page on a desktop or laptop with Chrome or Edge.

4

When it's done, open Live BMS on your iPhone → Settings → Add a Live BMS Link. The app finds the device and walks you through Wi-Fi.

Chrome or Edge on a computer. Connect the AtomS3 Lite first, then install.

Your browser will ask for permission to use the serial port. Accept it.

Not detecting the device? Hold the AtomS3's screen/button while plugging in the USB cable to enter download mode, then click Install again. Also check that you accepted the browser's serial-port permission prompt — if you dismissed it, try again and allow access.

Works with LiTime, Power Queen, Redodo, JK, Daly and JBD batteries today.