VIM4 Hardware

VIM4 Interfaces

VIM4 Hardware Info

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Component Purpose
1 USB-A USB 3.0 port that supports 1500mA output
2 RJ-45 Gigabit LAN port that supports Wake-On-LAN
3 HDMI Output HDMI output port supporting CEC
4 USB-C USB-C port with USB power delivery (9-20V input) and 2.0 speeds, can be used for upgrading the OS
5 USB-A USB 2.0 port that supports 1300mA output
6 Fan Header 4-wire fan header utilising pulse width modulation
7 Reset Button Force reboot your VIM4 in the event of a system freeze
8 Function Button Press this 3 times in 2 seconds to enter MaskROM mode
9 Power Button This button turns on your VIM4
A RTC Header A header for connecting a real-time clock (button) battery
B M2 Hole M2 clearance holes for a case, or adding a heatsink
C 40-Pin GPIO General input/output pins for VIM4’s SoC, or plugging-in a Toneboard
D DMIC Digital Microphone
E HDMI Input Tpye-D HDMI input
F LEDs Indicator LEDs
G MCU STM32G0 micro-controller
H MHF4 Antenna Wi-Fi and Bluetooth antenna connector
I MHF4 Antenna Wi-Fi and Bluetooth antenna connector
J Current Limit Switch Prevents damage to VIM4L due to faulty loading conditions
Component Purpose
1 VIN 9-20V power input
2 Micro-SD Slot Molex Slot, spec version 2.x/3.x/4.x (SDSC/SDHC/SDXC)
3 M.2 Slot PCIe 2.0 (x1 lane), supports M.2 2280 NVMe SSDs
4 MIPI-CSI 20-pin, 0.5mm pitch, Provided data path for dual cameras
5 MIPI-CSI 30-pin, 0.5mm pitch, 4-lane, dual cameras, 16MP image signal processing
6 MIPI-DSI&TP/eDP 40-pin, 0.5mm pitch FPC connector for 4-lane 1080P displays && TP touch input/eDP
7 V-by-One 30-pin, 0.5mm pitch
8 XPWR Pads Connect an external power switch using these pads
9 SPI Flash Flash memory module that interfaces over SPI
A Current Limit Switch Prevents damage to VIM4L due to faulty loading conditions
B G-Sensor 3-axis accelerometer
Reset Function Power Purpose
x Force Reboot VIM4
x Enter Upgrade Mode (TST)
x Power ON/Wake Up VIM4
x x Enter Upgrade Mode (KEYS)
x x x Erase EMMC
Colour Behaviour Meaning
Red OFF Power source disconnected
Solid ON Power source connected, SBC turned off
White OFF SBC turned off
Solid ON SBC turned on

The above behaviours are default out-of-the-box, and can be altered by a user. For example the white LED can be made to blink or breathe. For more information on how to program them via your favourite OS (each OS is different), please consult with experts at forum.khadas.com.