Control RGB LED with a slider in simple mobile app. Uses a very, very simple message with TCP connection between Arduino and mobile app.
Project showcase by Bongjun Hur
Demonstration program on how to drive a SIM7020 NB-IoT modem, then set up a dashboard using T-Mobile's network and AllThingsTalk API.
Project in progress by JayV
Build a simple MQTT message board with Arduino Ethernet.
by Bongjun Hur
How to make a simple remote display system with an OLED display and Arduino Ethernet. You can absolutely send your messages via mobile app.
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