Firmware installer

Flash your Setpoint

Put the latest firmware on an ESP32-C3 straight from your browser — no Arduino IDE, no toolchain, no account. firmware v2.9.4

You'll need: desktop Chrome, Edge, or Opera · an ESP32-C3 board on a USB-C data cable (not charge-only).

Plug the board into a USB port on this computer. If your board has a battery power switch, set it OFF first — USB powers the board for flashing, and an off switch keeps that USB power from back-feeding the cell.
Click Flash Setpoint and pick the board's serial port. No port, or the board keeps connecting and disconnecting? Force download mode: hold BOOT, tap RST, release BOOT — then pick the port. (Also make sure it's a data cable, not charge-only.)
When it finishes, follow the setup guide: join the Setpoint-XXXXXX Wi-Fi and point it at your dashboard.

This browser can't flash over USB. Open the page in Chrome, Edge, or Opera on a desktop — Web Serial isn't available in Safari, Firefox, or on mobile. You can also flash by hand with arduino-cli.

Serial access was blocked — reload and allow the port.

Already flashed at the factory? This page is here for updates and recovery — re-flash any time to the latest version. Installs open firmware onto hardware you own; nothing is uploaded anywhere. Prefer arduino-cli?