Flasher

This backs up your chamber, checks that the chip is safe to write, and then installs Terra Firmware. Everything happens in this browser, and your backup never leaves your computer.

Before you connect

Unplug the UV-C lamp (UVC1) from the board before anything else. UV-C light damages eyes.

The UV-C lamp (UVC1) is unplugged. My adapter is set to 3.3 V, and its VCC pin is not connected. The chamber is powered from its own supply. Wires go to the 7-pin header: adapter GND to pin 6, adapter RX to pin 5 (TX0), adapter TX to pin 4 (RX0), and adapter RTS to pin 3 (EN). I understand the flasher will back up my chamber first and won't write anything until that backup is saved.

Pin 1 is the end nearest the HDC1080 and ring-light connectors, and it carries 5 V. Don't connect it. Pin 7 is the end nearest the FAN1 connector and the mounting screw.

Connect

Hold the button on the back of the chamber, click Connect, choose your adapter, and keep holding until the status says Connected. Holding the button puts the chip into download mode.

Don't hold the button for long while the chamber is running normally. A long press on the stock firmware wipes its settings.

Back up your chamber

Reads all 4 MB of flash twice and checks that both reads match, then saves the file. Allow about 6 minutes.

Install Terra Firmware

Erases the chip, writes the firmware, then reads it back to check. This also wipes the stock settings, including your saved Wi-Fi password.

Replace the stock firmware on this chamber.

Technical log

Flasher

Before you connect

Connect

Back up your chamber

Install Terra Firmware

Next: Wi-Fi