| Title | Description | Cost | Link | Picture |
| Accelerometers MMA8453QR1 | Tripla axis: X, Y, Z ±2g, 4g, 8g 16-VFDFN I²C 16-QFN (3x3)Value:I²C | $1.43 | Link |
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| Clock MCP79410 Real-Time Clock Chip | I²C, 2-Wire Serial 1.8 V ~ 5.5 V Alarm, Leap Year, Square Wave Output, SRAM, Unique IDValue: I²C | $1.08 | Link |
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| Gyroscope L3G4200D | 3 Axis gyroscope from STMicroelectronicsValue:2.4 V ~ 3.6 V | $7.09 | Link |
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