# SCF4-M module

## Pin description

[![SCF4-M_motor_diagram.png](https://wiki.kurokesu.com/uploads/images/gallery/2021-01/scaled-1680-/SCF4-M_motor_diagram.png)](https://wiki.kurokesu.com/uploads/images/gallery/2021-01/SCF4-M_motor_diagram.png)

## Technical specifications

<table border="1" id="bkmrk-module-dimensions-16" style="border-collapse: collapse; width: 100%; height: 145px;"><tbody><tr style="height: 29px;"><td style="width: 50%; height: 29px;">Module dimensions</td><td style="width: 50%; height: 29px;">16 x 23 x 2.3 mm \[0.63 x 0.91 x 0.09 in\]</td></tr><tr style="height: 29px;"><td style="width: 50%; height: 29px;">Controlled stepper motors</td><td style="width: 50%; height: 29px;">3</td></tr><tr style="height: 29px;"><td style="width: 50%; height: 29px;">Connectivity</td><td style="width: 50%; height: 29px;">**USB** (optional USART, I2C, SPI)</td></tr><tr style="height: 29px;"><td style="width: 50%; height: 29px;">Module pin count</td><td style="width: 50%; height: 29px;">29</td></tr><tr style="height: 29px;"><td style="width: 50%; height: 29px;">Stepper motor resolution</td><td style="width: 50%; height: 29px;">up to 1/1024 micro-steps (1/64 default)</td></tr><tr><td style="width: 50%;">PWM voltage levels for filter switch</td><td style="width: 50%;">H-Bridge (128 voltage levels)</td></tr><tr><td style="width: 50%;">Weight</td><td style="width: 50%;">0.9g</td></tr><tr><td style="width: 50%;">Power consumption (module only)</td><td style="width: 50%;">55mA @ 5V</td></tr><tr><td style="width: 50%;">Power consumption (operating x18 lens 2 motors)</td><td style="width: 50%;">180mA @ 5V</td></tr></tbody></table>

## Absolute maximum ratings

<table border="1" id="bkmrk-min-supply-voltage-4" style="border-collapse: collapse; width: 99.1358%; height: 80px;"><tbody><tr style="height: 29px;"><td style="width: 69.7491%; height: 29px;">Min supply voltage</td><td style="width: 14.3844%; height: 29px;">4.3</td><td style="width: 15.7151%; height: 29px;">V</td></tr><tr style="height: 29px;"><td style="width: 69.7491%; height: 29px;">Max supply voltage</td><td style="width: 14.3844%; height: 29px;">7.0

</td><td style="width: 15.7151%; height: 29px;">V</td></tr><tr style="height: 29px;"><td style="width: 69.7491%; height: 29px;">Stepper motor max current</td><td style="width: 14.3844%; height: 29px;">200</td><td style="width: 15.7151%; height: 29px;">mA @ 5V</td></tr><tr style="height: 29px;"><td style="width: 69.7491%; height: 29px;">IR Filter coil max current</td><td style="width: 14.3844%; height: 29px;">300</td><td style="width: 15.7151%; height: 29px;">mA @ 5V</td></tr></tbody></table>

## Operating parameters

<table border="1" id="bkmrk-operating-voltage-4." style="border-collapse: collapse; width: 100%; height: 87px;"><tbody><tr style="height: 29px;"><td style="width: 58.7654%; height: 29px;">Operating voltage</td><td style="width: 23.7037%; height: 29px;">4.5 ~ 5.5</td><td style="width: 17.5308%; height: 29px;">V</td></tr><tr style="height: 29px;"><td style="width: 58.7654%; height: 29px;">Controller max current consumption</td><td style="width: 23.7037%; height: 29px;">1</td><td style="width: 17.5308%; height: 29px;">A @ 5V</td></tr><tr style="height: 29px;"><td style="width: 58.7654%; height: 29px;">Controller power rating</td><td style="width: 23.7037%; height: 29px;">5</td><td style="width: 17.5308%; height: 29px;">W</td></tr><tr><td style="width: 58.7654%;">Relative Humidity</td><td style="width: 23.7037%;">Non-Condensing</td><td style="width: 17.5308%;"> </td></tr><tr><td style="width: 58.7654%;">Operating Temperature</td><td style="width: 23.7037%;">-40 ~ 85</td><td style="width: 17.5308%;">°C</td></tr></tbody></table>

## Mechanical dimensions

[![SCF4M_dimensions.png](https://wiki.kurokesu.com/uploads/images/gallery/2021-01/scaled-1680-/SCF4M_dimensions.png)](https://wiki.kurokesu.com/uploads/images/gallery/2021-01/SCF4M_dimensions.png)

## Test points

For testing, flashing firmware and post-production purposes SCF4-M module has several test points.

[![SCF4-M-tps.png](https://wiki.kurokesu.com/uploads/images/gallery/2021-01/scaled-1680-/SCF4-M-tps.png)](https://wiki.kurokesu.com/uploads/images/gallery/2021-01/SCF4-M-tps.png)

For exact dimensions and locations check 3D STEP file.