Component | Supplier | Cost (US$) |
Moteino Microcontroller/radio Development Board | LowPowerLab | 25 |
BME280 Temperature, Relative Humidity, Pressure WeatherShield | LowPowerLab | 15 |
SHT31D Temperature, Relative Humidity Breakout Board | Adafruit Industries | 14 |
Si7021 Temperature, Relative Humidity Breakout Board | Adafruit Industries | 9 |
TSL2591 Digital Light Sensor Breakout Board | Adafruit Industries | 7 |
Miscellaneous (protoboard, headers, batteries, holder) |
| 6 |
Total |
| 76 |