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Display MQTT message on SSD1306

Using for pomodoro timer with Node-Red.

MQTT to SSD1306.

Video (Russian) - https://youtu.be/du_pAQib9QU

  • status/tablo - send text (max 5 symbols)
  • status/tablo/json - send json
{"msg":"line 1\nline 2","msgSize":2}

msgSize

  • 1 - 8 lines
  • 2 - 4 lines
  • 3 - 3 lines
  • 4 - 2 lines
  • 5 - 1 line

Quick start

git clone https://github.com/popstas/mongoose-mqtt-ssd1306
cd mongoose-mqtt-ssd1306
mos build
mos flash
mos wifi ssid pass
mos config-set device.id=mongoose-pomodoro
mos config-set mqtt.enable=true mqtt.server=myserver mqtt.user=myuser mqtt.pas=mypass
mos config-set app.mqtt_topic=status/pomodoro/mmss app.text_size=4

Wiring

SSD1306 display:

  • SCL to D1
  • SDA to D2

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MongooseOS: Display MQTT message on SSD1306

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