Unboxing:
Raspberry Pi 4 Compute Module Requirements
SaraKIT requires Raspberry Pi with emmc and wifi for communication. For furture software developmnet, the recomended emmc size is ≥16GB.
Power supply:
SaraKIT requires 12-24VDC min. 24W when you use motors in your project, you should use a correspondingly larger power supply.
For mobile devices, we recommend a simple connection to the PowerBank (PD2.0 PD3.0 Fast Charging and QC4 with USB-C output) with a special PD 12v cable. Or by connecting a USB cable via USB-C Pd Trigger Module Pd 12v (see in store)
or 
SaraKit Mainboard peripherials
GPIO J103
 |
mini usb connector |
GPIO J104
 |
Pin | Function |
| 1 | RPi_CM4 G2/I2C SDA | |
| 2 | RPi_CM4 G13/IR_LED PWM | |
| 3 | RPi_CM4 G3/I2C SCL | |
| 4 | RPi_CM4 G22/AUDIO DET | |
| 5 | RPi_CM4 G5/PIR_INT | |
| 6 | RPi_CM4 G23/FILTER_CTRL | |
| 7 | RPi_CM4 G6/LED_DI | |
| 8 | RPi_CM4 GPIO24 | |
| 9 | GND | |
| 10 | RPi_CM4 GPIO25 |
GPIO J105
 |
Pin | Function |
| 1-2 | 12V | |
| 3-4 | 5V | |
| 5-6 | 3.3V | |
| 7 | RPi_CM4 G14/TX0 | |
| 8 | RPi_CM4 G15/RX0 | |
| 9-10 | GND |
Audio output RIGHT J300, Left J301
Amplified 2x6W 4Ω output
 |
Pin | Function |
| 1 | OUTN | |
| 2 | OUTP |
MOTOR A J400, MOTOR B J401
 |
Pin | Function |
| 1 | Phase 1 | |
| 2 | Phase 1 | |
| 3 | Phase 3 |
Encoder input J402,J404
(programable dsPIC pin)
 |
Pin | Function |
| 1 | 3.3V | |
| 2 | dsPIC RB2 (PWM input) | |
| 3 | GND |
dsPIC programming interface J403
 |
Pin | Function |
| 1 | RST | |
| 2 | 3.3V | |
| 3 | GND | |
| 4 | PGD2 | |
| 5 | PGC2 |