Use your LAPTOP as a KVM! The Pi-Cast USB KVM

Published 2024-03-08
Today, I take a look at the Pi-Cast KVM, a PiKVM compatible system which lets you use your laptop as the keyboard/display/mouse when working with PCs and servers.

Based on the Raspberry Pi Compute Module 4, the Pi-Cast features USB3 gigabit Ethernet between the Pi-Cast and your laptop, HDMI input, USB gadget emulation, and a number of accessory hats are available to add ATX power control and a slot for an LTE modem.

Buy a Pi-Cast KVM:
www.crowdsupply.com/hackergadgets/pi-cast-kvm

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Timestamps:
00:00 - Intro
01:55 - Quick Test
02:43 - Teardown
04:10 - Feature Demo
07:36 - One More Thing
10:11 - Final Thoughts

All Comments (21)
  • @JamesTenniswood
    Skillfully avoiding mentioning the prices because wowsers, that is not cheap. I'll stick with my hdmi capture stick for £15 and a keyboard (actually works well using an ipad as the monitor too!)
  • @Darkk6969
    I've backed that project and waiting for mine to arrive sometime in June of this year. I've backed the Pi-Cast KVM With Dual-ATX Multiport Switch and USB 3.0 & M.2 B-Key Module version which is a powerhouse for what I'd use it for. Love the idea of controlling two machines with ATX.
  • @GameDesignerJDG
    I'm glad you're getting sponsorships, especially since this one aligns pretty closely with what your channel does, but I'm also always looking forward to seeing you scrounge up second hand electronics and set up foss web hosting utilities for problems I've never thought of. Love all the stuff you've put out so far. Can't wait to see what's next.
  • @NickBouwhuis
    A USB KVM is such a good idea that I wonder why it was never done before. I definitely need this in my bag.
  • @zyghom
    $214 $8 US Shipping / $18 Worldwide - that is THE CHEAPEST option - I just made pikvm out of pi4 and with box and CSI boar it was less than 100. Added 4x hdmi switch for 40 from ali and I am done with 4 remote computers over pikvm for 140...
  • @lis6502
    sigh, nihil novi. It's basically PiKVM project with custom breakout board for CM4. I am using combo Pi4+CSI2HDMI adapter for 3 +-years and i think using expensive Pi in such project is waste of money (i've bought mine while they were still reasonably priced ;p). USB2HDMI bridges are cheap as hell, only thing to work out would be forcing USB-C in laptop to as a client multifunction device or yet better, how to communicate over regular host usb to something acting as a client device. And yes, i am thinking about running pikvm on top of usb-c x86 laptop or even better, thin client. Because TCs are just made for such tasks, no admin will complain about screen refreshing in 4 fps while they having literally BMC connected with hdmi and usb to regular consumer grade device. So yeah, i am giving thumbs up for Daniel the cat, but otherwise material isn't anything particulary new or homelab-friendly economically-wise
  • @eherlitz
    Great walkthrough, shouldn't these devices be able to remote control a EZC switch as well? I mean the ones from easycoolav (e.g. EZ-SW41HA-KVMU3L)?
  • @OnnieKoski
    Ok, I’m way more interested in this now. Thanks!! Can you run spinwrite on this?
  • @Dru_Fire
    Have you seen the AURGA viewer, Bluetooth/wifi KVM.
  • @tcricket
    Does the Pi-Cast KVM With Dual-ATX Multiport Switch still work with only a USB-C connection or do you have to use Ethernet?
  • @NiHaoMike64
    I would like to see a version that's just software using a USB HDMI capture stick for video and a microcontroller for keyboard/mouse emulation. Cut out the encoding/decoding and web browser to reduce latency.
  • It's really hard to tell with these devices whether they support sound. Anyone know which ones do?
  • @sethstenzel
    So can you comment on latency at all for me? I've been developing a similar product, though like someone else mentioned in a comment based around cheaper HDMI capture and custom software. I have a few prototypes but I'm working on the software before tackling a order to PCB way. I'm targeting more like $60-$75. I do have some slight latency with the HDMI capture method, though I managed a game of SC2 with it lol.
  • @UnNumptyTube
    I struggle with a two cat parade on a daily basis. I got a split keyboard to reduce my attack surface. I've given up on getting them off the desk. Shutting the door is just chaos.
  • @mjmeans7983
    I think that using an RJ45 connector for the ATX control connector is a design flaw. Connectors should be fail-safe, especially when there may be multiple connectors with the same form factor on the same face of the host computer. (Thinking about when reaching behind a computer to find the slot that has the KVM connector instead of the slot that has a single port NIC). It seems that cross plugging an ethernet cable into it by accident could damage the motherboard or the KVM.