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When connected to the computer with USB-A OTG, it becomes a real USB flash drive.
Pls refer to [[C235]] if you need heatsink for your CM4.
Note:
# Must make sure that the CM4 module is correctly installed on the expansion board CM4 stick before powering on.
# Raspberry Pi Compute Module 4(CM4）is not included in the packing list.
# <span style="color:red;">USB-A and USB-AF/USB-C ports cannot be used at the same time. </span>The USB-AF and USB-C power supply ports can be used at the same time.
==Features==
* TF Card interface: MicroSD Card Slot (only supports CM4 module that without eMMC)
* 20Pin GPIO be reserved
* 1x fan interface: 4P-PH2.0 PWM Fan Control Interface<span style="color:red;">（Not support pwm fan speed adjustment）
* 1 x CSI camera FPC connectors (22-pin 0.5mm pitch cable)
* 1x Reboot Button
* 1x Toggl Toggle Switch (for function selection of USB device and CM4 device)
* Working Temperature: 0℃~80℃
* PCB Dimension: 70x45mm
===How to use CM4 stick to start CM4 ===
1. Firstly, don’t forget to move the toggle switch to the B '''down''' direction.
[[File:CM4-Stick-Dimension-Toogle-Switch.jpg|700px|dimension and toogle switch description of CM4 stick]]
1 x CM4 Stick shield
==Document==
* CAD DXF file: [[File:Cm4-stick-CAD-DXF.zip|DXF file for CM4 Stick]]
==FAQ==
Q1. The USB interface is not working?
A： Please refer to the above [How to use CM4 stick to start CM4]
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