Temperature and humidity module, ±0.5 °C, ±2 % RH
| Supply | 3.3–6 V |
| Interface | Single-wire |
| Range | −40…+80 °C, 0–100 % RH |
Digital temperature sensor, 1-Wire, ±0.5 °C
| Supply | 3.0–5.5 V |
| Interface | 1-Wire |
| Range | −55…+125 °C |
Ultrasonic distance sensor, 2–400 cm
| Supply | 5 V |
| Interface | Trigger / echo |
| Range | 2–400 cm |
Digital temperature and humidity sensor, ±0.5 °C, ±2 % RH
| Supply | 3.3–6 V |
| Interface | Single-wire |
| Range | −40…+80 °C, 0–100 % RH |
Digital temperature and humidity sensor, ±2 °C, ±5 % RH
| Supply | 3.3–5.5 V |
| Interface | Single-wire |
| Range | 0…+50 °C, 20–90 % RH |
GSM/GPRS module, quad-band, SMS and data
| Supply | 3.4–4.4 V |
| Bands | 850/900/1800/1900 |
| Interface | UART |
Temperature and humidity module, ±2 °C, ±5 % RH
| Supply | 3.3–5.5 V |
| Interface | Single-wire |
| Range | 0…+50 °C, 20–90 % RH |
Digital temperature and humidity sensor, ±0.5 °C, ±2 % RH
| Supply | 3.3–6 V |
| Interface | Single-wire |
| Range | −40…+80 °C, 0–100 % RH |
RFID reader/writer module, 13.56 MHz, card and key fob
| Supply | 3.3 V |
| Radio | RFID / NFC (MFRC522) |
| Bands | 13.56 MHz |
GSM/GPRS module, quad-band, SMS and data
| Supply | 3.4–4.4 V |
| Bands | 850/900/1800/1900 |
| Interface | UART |
