An open IP-KVM on the ESP32-P4 - a target machine's screen, and a USB keyboard and mouse, in a browser.

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Reach a machine that has no working operating system - a BIOS screen, a boot menu, a kernel that will not come up - from a device that costs a fraction of a commercial KVM-over-IP. It captures HDMI through a TC358743 bridge, presents itself to the target over USB as a keyboard and mouse it cannot tell from real ones, and serves the whole thing over HTTPS from a megabyte of firmware.

• Follows the target - a switch from an 800x600 firmware screen to a 1080p desktop is followed on its own.
• Clicks land where aimed - an absolute USB pointer, immune to the target's mouse acceleration.
• MJPEG or H.264, both encoded in hardware.
• HTTPS and a login, with a certificate the device issues itself and a password you can clear with the board button if you forget it.
• Updates itself over the network, into a spare slot, with rollback.
• Says what it cannot do - every feature reports whether the hardware supports it, so a control that cannot work is shown disabled with the reason.

ESP-KVM began as a fork of jrowny/p4kvm by Jonathan Rowny. The TC358743 bring-up and the direct MIPI_CSI_BRIDGE programming - the hard, weeks-of-reverse-engineering part - are still the foundation. Everything above them was rewritten. Thank you, Jonathan, for putting it in the open.

A non-commercial, community open-source project.

_{Apache-2.0. Not for the public internet: keep it on a network you trust, or behind a VPN.}