Sonoff
Sonoff Basic R2
Imported from Elementic Devices.xlsm on 2026-03-25.
Device information
- Controller
- ESP8266
- Category
- Smart devices
- Pins
- 4
Controller details
ESP8266
Espressif · ESP8266 · Xtensa single-core
160 KB RAM · 17 GPIO
Starter Arduino code
Device specific// Elementic starter sketch
// Device: Sonoff Basic R2
// Device Excel ID: 26
// Controller: ESP8266
void setup()
{
Serial.begin(115200);
delay(500);
Serial.println("Elementic device booting...");
Serial.println("Device: Sonoff Basic R2");
Serial.println("Excel ID: 26");
}
void loop()
{
// 1. Configure your Elementic pins here.
// 2. Add your connectivity setup.
// 3. Publish or react to device state changes.
delay(1000);
}
Pin summary
| GPIO | Name | Flags |
|---|---|---|
| 0 | GPIO0 (Button) | Binary in, Interrupt |
| 2 | GPIO2 (IO2 pad) | Binary in, Digital out, Binary out, Interrupt |
| 12 | GPIO12 (Relay) | Binary out |
| 13 | GPIO13 (LED) | Digital out, Binary out |