Offband offband-v0.19.0-rc1
Pre-releaseDisplay _sys enhancements (RC1 — for testing)
Two new observer/companion display controls over the _sys channel:
- Display always-on (#141) —
display always onkeeps the screen lit;display normalrestores the 15 s blank. (Verified: V3/V4 OLED + V4 TFT.) - Display rotation 0/180 (#148) —
display rotate 0/display rotate 180/display flipflip the screen for upside-down mounting. (Verified: V3/V4 OLED.)
⚠️ TFT 180° rotation is UNVERIFIED — this is the thing to test. On the Heltec V4 TFT (heltec_v4_tft_companion_observer_wifi),display rotate 180uses a best-guess MADCTL combo (flipScreenVertically). Please confirm it gives a clean 180° flip (upside-down but readable), not a mirror or garbled image.display rotate 0should return to normal;display flipshould toggle. Report back — it's a one-line fix if the combo is wrong.
TFT flash: heltec_v4_tft_companion_observer_wifi-v0.19.0-rc1-14bc32d-merged.bin (full image — web-flasher "Full Firmware" for a fresh install), or the .bin (app-only) to update an existing node and keep its identity/config.
Which file do I download?
| File | What it is | When to use it |
|---|---|---|
*-merged.bin (ESP32 — Heltec V3/V4, XIAO) |
Full image — bootloader + partition table + app in one, flashed at 0x0 after a chip erase. Self-contained, works on a blank chip. |
First install / clean setup. In a web flasher this is the "Full Firmware" option. |
*.bin (ESP32) |
App only — flashed at the app offset (0x10000); the bootloader must already be on the chip. |
Updating an existing node — OTA / "Update Only." Keeps the device identity + WiFi/MQTT config. |
*.uf2 (nRF52 — RAK, T-Echo, XIAO nRF52) |
Complete self-contained image. | First install and updates — double-tap reset, then drag-drop onto the USB drive. (nRF52 has no merged/app split.) |
⚠️ ESP32: the app-only*.binwill not boot if flashed at0x0— use*-merged.binfor a fresh install. A full erase / "Full Firmware" wipes the device's identity + saved config, so use it only for a first install or recovery, never a routine update.
Full Changelog: offband-v0.18.1...offband-v0.19.0-rc1