| Section | Component | Characteristics | Qty | Unit | Cost Unit | Vendor/Brand | Total Cost |
|---|
| | | | | | | |
| Board | Copper PCB | FR1 – 7x10cm | 1 | piece | 0,60 € | sourcing map | 0,60 € |
| XIAO ESP32C3 | | 1 | piece | 6,40 € | Go Tronic | 6,40 € |
| Resistors | 180 Ohm SMD 1206 | 1 | piece | 0,03 € | Go Tronic | 0,03 € |
| Resistors | 10k Ohm SMD 1206 | 2 | piece | 0,03 € | Go Tronic | 0,06 € |
| PushButton | 12mm square | 2 | piece | 0,55 € | Sparkfun | 1,10 € |
| FM transmitter | | 1 | piece | 4,39 € | Go Go Store | 4,39 € |
| LoRa transmitter | RF SX1276 - 868Mhz | 1 | piece | 5,74 € | Wireless Life Store | 5,74 € |
| Battery | Lipo3,7V – 500mAh | 1 | piece | 3,00 € | LW Battery Store | 3,00 € |
| OLED Display | 0,96 inch I2C module | 1 | piece | 2,69 € | Fnd Chips Store | 2,69 € |
| | | | | | | |
| Case | PLA filament | 2,85 mm | 3,00 € | m | 0,15 € | | 0,45 € |
| Acrylic Glass | 11x25mm | 1,00 € | piece | 0,00 € | | 0,00 € |
| | | | | | | |
| | | | | | Total | 24,46 € |