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Alban de Crevoisier d'Hurbache edited this page Dec 2, 2016
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Battery Li-Ion 1 element 2050mAh, discharge 2A max., charge 1A max. (Farnell 2401856)
| element | Imax (mA) |
|---|---|
| MCU STM32F302 | 100 (48 @72MHz + I/O source/sink) |
| Decawave DWM1000 | 64 |
| 2x code wheel | 4 (total) |
| IMU MPU-9250 | 3.7 |
| h-bridge DRV8835DSSR | 2 |
| LED IR | 100 |
| TOTAL | 273.7 |
| element | Imax (mA) |
|---|---|
| 2x Motors | 300 (each) => 600 |
| 8x LED RGB APA102 | 55 (each) => 440 |
| TOTAL | 1040 |
Regarding the needed voltage, the following architecture will be the most efficient :
- buck-boost regulator beteween the battery and the 3.3V rail
- boost regulator beteween the battery and the 5V rail