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Essential sensing platform components of LEWIS2.
| Element | Description | Price, $ |
|---|---|---|
| Arduino Uno R3 | Microcontroller | $4.00–25.00 |
| MPU9250 | Sensor | $9.99 |
| XBee Series 1 Module | Wireless transmission module | $25.00 |
| Arduino Wireless SD Shield | Communication XBee and Arduino Uno R3 | $15.00 |
| Battery | Nanotech LiPo 1000 mAh rechargeable battery | $6.33 |
| SD Card | SanDisk Ultra 80 MBs MicroSD Card, 16GB | $10.00 |
| Total | $70.35–91.35 |
