2x NodeMCU ESP32 with USB-C - €15.90 each
Gotron ESP32-C | Pin Layout | Manual
2x ELIR204 IR LED (940nm, 3mm) - €0.36 each
Gotron IR LED
2x 100Ω Resistors (1/4W) - €0.10 each
Gotron 100Ω
Note: Install on positive side only
2x DS18B20 Waterproof Temperature Sensor (includes 4.7kΩ pull-up resistor) - €11.91 each
Gotron DS18B20
2x 4.7kΩ Pull-up Resistors (1/4W) - €0.10 each
Gotron 4.7kΩ
Note: Included with DS18B20 sensors at Gotron
2x Cable Gland PG7 (Black) - €0.64 each
Gotron Cable Gland
2x SPST Toggle Switch MS100A (6A, 250V) - €1.50 each
Gotron Toggle Switch
1x Set Spade Connectors Female 4.8mm (Blue, 10pcs) - €2.00
Gotron Spade Connectors
2x USB Wall Adapter (4W) - €5.00 each
Gotron USB Adapter
Or use any USB adapter you have available
3x Jumper Wire Sets (Female-Female, 15cm, Purple, 10pcs) - €4.76 each
Gotron Jumper Wires
2x WAGO 5-Pole Connector (0.2-4mm², 32A) - €0.93 each
Gotron WAGO Connector
For shared ground connections
1x Self-Tapping Screws 2.2x6.5mm (100pcs) - €5.40
Gotron Screws
Plenty for multiple mounting configurations
- Quantity: This list provides components for 2 complete units
- IR Range: ELIR204 LEDs provide sufficient range for typical room installations
- Power: USB-C powered units can be powered from any USB adapter or power bank
- Temperature Sensor: Waterproof DS18B20 allows external mounting for accurate readings
- Mode Switch: Manual/Auto operation toggle for each unit
Component Breakdown:
- 2x ESP32 NodeMCU: €31.80
- 2x IR LEDs: €0.72
- 2x 100Ω Resistors: €0.20
- 2x DS18B20 Sensors: €23.82
- 2x 4.7kΩ Resistors: €0.20
- 2x Cable Glands: €1.28
- 2x Toggle Switches: €3.00
- 1x Spade Connectors: €2.00
- 2x USB Adapters: €10.00
- 3x Jumper Wire Sets: €14.28
- 2x WAGO Connectors: €1.86
- 1x Self-Tapping Screws: €5.40
Total: €94.56