KVM-A3
Contents
Overview
PiKVM-A3 is a member of the PiKVM[1] family, which supports Raspberry Pi 4 with a matching metal case.
Features
- Designed especially for PiKVM ( Raspberry Pi based KVM over IP)
- Fully compatible with PiKVM OS (refer to user manual)
- Control a server and computer using a web browser
- HDMI Full HD capture based on the TC358743 chip
- OTG Keyboard & mouse; Mass Storage Drive emulation
- Hardware Real Time Clock (RTC) with CR1220 coin battery socket
- Equipped with solidstate relays to protect RPi GPIO pins from computer and ESD spikes
- ATX control via RJ45 connector Switch the machine on or off, reset it, and monitor the status of HDD LED & power LED remotely
- Reserves the 10pin SH1.0 connector on X630-A3 for future I2S HDMI audio support
- Reserves the 4pin header & spacers for I2C OLED display
KVM-A3 Packing List
- PiKVM-A3 Metal Case
- 4 x M2.5*5+5mm Spacers
- 4 x KM2.5*4mm Screws
- 1 x 4pcs non-slip rubber pads
- 1 x sponge sticker
Packing List
- 1 x 0.96 inch OLED: Resolution: 128×64 pixel, with 2 piece of M2*6 screws
- 1 x Ethernet Cable (Cable length: 100cm)
- 1 x X630 HDMI to CSI-2 Module
- 1 x FFC Cable(5cm length)
- 1 x X630-A3 V1.2 Expansion Board
- 1 x USB-A to USB-C OTG Cable (Cable Length: 100cm / 39.37 inch)
- 4 x M2.5x20mm F/F Spacers
- 7 x M2.5x5mm Screws
- 1 x M2.5x10mm Screws
- 1 x X630-A5 V1.0 Adapter Board
- 1 x M3.5x6mm Screw
- 1 x ATX Control Cable (Cable Length: 47cm / 18.50 inch)
Matching Case (Model is KVM-C3)
KVM-C3: Case for Raspberry Pi 4 and PiKVM-A3, not support raspberry pi 3 B+ / 3B.
How to Power
- Power Input: 5.1Vdc +/-5% , ≥3A (Power Via USB Type-C port of X630-A3)
- DON'T power via raspberry pi's TYPE-C port, because it is occupied as USB OTG.
How to Cool
- For use with raspberry pi 4, X630-A3 (PiKVM-A3) equipped with a active cooling fan that cool your raspberry pi;
- For use with raspberry pi 4, X630-A8 (PiKVM-A8 PCIe version) equipped with a active cooling fan that cool your raspberry pi;
- For use with raspberry pi zero 2 w, X630-A4 (PiKVM-A4) allows to use C296 aluminum heatsink with your raspberry pi zero 2 w, but user need to prepare 4pcs M2.5*7mm screws yourself.
Hardware Parameters
User Manual
First you need to make sure your hardware connections are correct, please refer to the video and diagram below
Installation Video
PiKVM-A3 Kit: https://youtu.be/KrpHCsK7veA (Note: the X630-A3 V1.2 has been updated to X630-V1.3 and remove one on-board spacer to simplify the installation.)
Connection Diagram
The PiKVM-A3 is composed of follow parts:
- X630 HDMI to CSI-2 Board (for video capture)
- X630-A3 HAT Board (for ethernet, cooling, RTC, ATX Control power in etc)
- X630-A5 Adapter Board (it is installed inside the PC case, and it connect the computer motherboard and IO panel cabe of PC case))
- 0.96 inch OLED (for display, Resolution: 128×64 pixel)
- Ethernet Cable (TIA/EIA-568.B connection, and it's ATX control signal cable)
Note:
- Please use the supplied USB Type-C to USB 2.0 A-Male Cable only. USB-C to USB-A cable only with DATA lines (for keyboard and mouse emulation), Using other cable might cause instability or damage to either the host PC or the Pi.
- We need to ensure you isolate the 5v connection between the Raspberry Pi and host PC to prevent backpower issues that can cause instability or damage to either the host PC or the Pi.
- Some PC case may not have HDMI port, you need to use VGA/DVI to HDMI adapter to transfer HDMI port, but VGA to HDMI adapter may not be compatible with PiKVM-A3
Click it to zoom in
Note:
- The X630-A5 adapter board will be install into the PC Case.
- The wire group ① connect to X630-A5 comes from the PANEL of PC Case.
- The black and red wires(wire group ②) come from X630-A5 accessories.
OS Download & Installation
1. Firstly, need prepair a micro sd card, a minimum 16 Gb class 10 memory card is recommended.
2. Download an appropriate OS image for the PiKVM, the url link is: https://pikvm.org/download/
- We recommend that you use the 'V3 Pre-Assembled' version, and this image includes OLED display configuration.
- For Raspberry Pi 4, please use PiKVM V3 platform.
3. Flash it to a microSD memory card by following the simple instructions or Official installation tutorial
4. Power the device, then open explore to login the pikvm web ui.
Enable RTC
Due to different RTC chips with official PiKVM hardware, you still need to configure RTC to make RTC work normally.
Firstly, insert the ```C1220``` button battery. run the following command in web terminal window:
rw sudo nano /boot/config.txt #Then change the line: dtoverlay=i2c-rtc,pcf8563 to dtoverlay=i2c-rtc,ds1307 #Test RTC #Display the current time of the Raspberry Pi date #Write the time of Raspberry Pi to DS1307 reboot before next step sudo hwclock -w #Read the time of DS1307 sudo hwclock -r ro
Enable OLED display
Run the following command in web terminal window to enable OLED display:
rw systemctl enable --now kvmd-oled ro
Enable pikvm hdmi audio
Refer to Enable pikvm hdmi audio
FAQ
- First of all, we recommend you to get more FAQ information on the official website: official FAQ, or check the following FAQ;
- You can post a issue ticket at Geekworm forum or email to us (support@geekworm.com) and attached your installation pictures or videos to get some help.
- Blog sharing for reference: https://www.andysblog.de/kvm-over-ip-pikvm-als-bausatz
How to login pikvm?
A: Input the XX.XX.XX.XX ip address on the web explorer, then input user: admin, the default password is 'admin' also.
How to switch to root user?
A: run the following command:
su root
Then type the password, the default password is 'root' also.
How to enable OLED display?
A: Run the following command to enable OLED display:
rw systemctl enable --now kvmd-oled ro
How to enable RTC?
A: Firstly, insert the C1220 button battery. run the following command:
rw sudo nano /boot/config.txt #Then change the line: dtoverlay=i2c-rtc,pcf8563 to dtoverlay=i2c-rtc,ds1307 #Test RTC #Display the current time of the Raspberry Pi date #Write the time of Raspberry Pi to DS1307 reboot before next step sudo hwclock -w #Read the time of DS1307 sudo hwclock -r ro
Why OLED is not display?
A: Please follow the steps below to check
1. Please confirm that your OS is right:
Due to downloading the wrong firmware, the OLED cannot be displayed. We ALSO made such mistakes during testing.
2. Please check if the order of OLED screen pins is correct, please contact us if it's a wrong pin order;
then runt the following command to check i2c address
sudo i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- --
3c is a hexadecimal number, it is the I2C address of OLED, if you can’t find this value, please shut down and reconnect X630-A3&OLED and run this command again, If you still can't find the OLED's I2C address, the OLED screen may be damaged.
4. Then run the following command to enable OLED display:
rw systemctl enable --now kvmd-oled ro
I want to control several pc power. Is it possible with one PiKVM-A3 and several x630-a5
A. No, one kit can only control one pc, you can refer to X680
There is a I2S Audio In on X630-A3, does the packing list contain an I2S cable? How to connect it?
A. No contain an I2S cable. We will add the I2S cable soon.
PiKVM OS does not support I2S, so it cannot be used yet.
The 10pin SH1.0 connector is for '''future''' I2S HDMI audio support. Once it supported, we will update the product information for detail use.
Why the device does not show the video?
- Double-check that the video capture device is connected correctly and tightly. For the CSI bridge, this should be exactly the camera port;
- Some laptops do not output any signal until you switch the output (usually via the FN + and an F5 key on the keyboard).
- Your computer may have turned on sleep mode for the monitor. Move the mouse to turn it off.
- ↑ PiKVM © belongs to https://pikvm.org
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