Snoopy’s hardware BoM (bill of materials) adds up to around $200. Here is the minimum BoM breakdown!
Let’s add up part costs as of 09/2023. You can get these parts, for example, on Amazon or AliExpress.
| Part | Quantity | Approx. Cost per Unit |
|---|---|---|
| ESP32 ESP-WROOM-32 | 1 | $5 |
| Voltage regulator module | 1 | $5 |
| Battery with cable | 1 | $50 |
| Laser scanner YDLIDAR X4 with cable | 1 | $80 |
| Resistors 0603 | 4 | $0.10 |
| Connectors | 4 | $0.50 |
| Motor CHR-GM25-BLDC2418 with cable | 2 | $11 |
| 65mm tire with shaft adapter | 2 | $4 |
| Breakout PCB | 1 | $4 |
| PETG or PLA filament, 1Kg | 1 | $20 |
| Bring-your-own smartphone | 1 | $0 |
| Bring-your-own local PC | 1 | $0 |
| Bring-your-own 3D printer | 1 | $0 |
| Parts and supplies total | $199.60 |
Please note:
- The motors are BLDC (brushless), rated at 2.5W.
- Each motor includes a built-in encoder and a built-in BLDC controller.
- Snoopy is designed to accomodate 5 cliff and 4 bumper optional sensors. These sensors cost around $1 each.
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