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What you need

github-actions[bot] edited this page Oct 30, 2026 · 2 revisions

What you need

Three things: labels, an access point (AP), and a jig to flash each label once.

Part What to get More
Labels A supported SoluM label: the 2.9" ST-GM29XX2 (two CR2450) or the 1.54" ST-GM16XX2 (one CR2450). Check the product name on the back. Supported labels
Access point An ESP32-C6 board with USB is enough. Other boards take more labels. Choosing a board
For flashing labels A small board running atc1441's ZBS_Flasher, and a pogo-pin jig for the test pads behind the battery. Tested with a Wemos D1 mini; ESP32 and Arduino Nano also work. The flashing jig
A browser Chrome or Edge on a computer (Web Serial) for flashing. The designer works in any modern browser.

You only need the jig once per label. After that, labels get new firmware over the air (Updating labels).

No hardware yet? The simulator runs the label firmware and the AP together on a PC, so you can try the API first.

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