Data to ttgo lora board oled screen

DigiH · September 13, 2024, 5:44pm

I suppose the TTGO LoRa board uses a different pin assignment then to the LilyGo LoRa32, which is the default with the lilygo-ble binary default build_flag
'-DZdisplaySSD1306="LilyGo_SSD1306"'
similar to the Heltec broads requiring
'-DZdisplaySSD1306="HELTEC_SSD1306"'

@paulus added a great generic SSD1306 option, so with this and a custom build it should also be possible for your TTGO with the above I2C pin assignments, as documented at

github.com

1technophile/OpenMQTTGateway/blob/development/docs/use/displays.md#connecting-a-generic-ssd1306-display-to-esp32

# Displays

## SSD1306 Display (Heltec SX127X, LILYGO® LoRa32 boards, generic SSD1306 displays)
Several options are available for the display of information on the SSD1306 display. Some options are exclusive to each other, and when a different option is enabled, the current option is disabled.

The current SSD1306 display states are being published to the `SSD1306toMQTT` topic, e.g.

`{"onstate":true,"brightness":50,"display-flip":true,"idlelogo":true,"log-oled":false,"json-oled":true}`

### Display ON/OFF
To turn the SSD1306 display on or off.

This can be enabled with the compiler directive `-DDISPLAY_STATE=true`.

MQTT Display OFF command:

`mosquitto_pub -t home/OpenMQTTGateway/commands/MQTTtoSSD1306/config -m {"onstate":false}`

MQTT Display ON command:

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