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https://github.com/1technophile/OpenMQTTGateway.git
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1.2 KiB
1.2 KiB
IR gateway
Compatible parts
| Module | Purpose | Where to Buy |
|---|---|---|
| IR diode | Emitting | compatible parts list |
| IR receiver | Receiving | compatible parts list |
| transistor 2N2222 | Amplify uC signal for the IR diode | - |
| 330 ohms resistor | - | compatible parts list |
| 220 ohms resistor | limit current to LED | compatible parts list |
The IR setup can work with bc547 and a 4x3 LED-Matrix.
Pinout
| Board | Receiver Pin | Emitter Pin |
|---|---|---|
| Arduino UNO | D2 | D9 |
| ESP8266 | D4 | D0 |
| ESP32 | 27/26 | 14 |
Connect the Emitter and Receiver to a 5V supply source, and the ground of your supply source to the ground of your board.


