79 lines
3.0 KiB
Markdown
79 lines
3.0 KiB
Markdown
# PiKVM - Pi Zero 2 W
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The official PiKVM is expensive so I decided take build my own & add some features in the process:
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- Small "USB dongle" form-factor with minimal connections
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- Simple install script which lets you toggle all added features
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- Static MAC addresses to fix IP changes on reboot while using DHCP
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- Creates access point when network connection is lost for easy configuration
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- Ethernet connection for wired networks
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- Ethernet passthrough coming soon!
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- E-ink display for showing network information
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- Create a jumpbox by adding a wireguard config (`wg0.conf`) to the boot partion
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- Simple SWAP managment script to _download_ more memory on the fly
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- Install 1G of memory: `swap.sh 1024`
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- Uninstall swap: `swap.sh --disable`
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## Hardware
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- [Pi Zero 2 W + SD Card](https://www.raspberrypi.com/products/raspberry-pi-zero-2-w/)
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- Ethernet to SPI
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- W5500 (Faster)
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- or [ENC28J60](https://www.waveshare.com/enc28j60-ethernet-board.htm)
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- [HDMI to CSI-2](https://www.waveshare.com/hdmi-to-csi-adapter.htm)
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- [2.13" E-Ink Display](https://www.waveshare.com/2.13inch-e-paper-hat.htm)
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## Assembly
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1. Cut the head off a USB cable & solder it to the debug pads on the back of the Pi; extend to the right (Opposite the SD card)
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2. Connect HDMI/CSI-2 module via short ribbon cable (~40 mm); fold over and glue to back of board alighting with the SD card
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3. Wire the Ethernet/SPI module onto SPI chanel 0
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| Module | RPI GPIO (Board) |
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|--------|------------------|
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| V | 17 (5/3.3 V) |
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| G | 20 (Any Ground) |
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| MI | 19 (SPI0 MOSI) |
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| MO | 21 (SPI0 MISO) |
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| SCK | 23 (SPI0 SCLK) |
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| CS | 24 (SPI0 CE0) |
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| INT | 22 (GPIO 25) |
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4. Connect E-Ink display via side pins to SPI channel 1
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| Module | RPI GPIO (Board) |
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|--------|------------------|
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| VCC | 4 (5/3.3 V) |
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| GND | 6 (Any Ground) |
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| DIN | 19 (SPI0 MOSI) |
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| CLK | 23 (SPI0 SCLK) |
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| CS | 26 (SPI0 CE1) |
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| DC | 15 (GPIO 22) |
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| RST | 16 (GPIO 23) |
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| BUSY | 18 (GPIO 24) |
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## Install
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1. Flash SD card with [latest PiKVM image](https://pikvm.org/download/) using the [Raspberry Pi Imager](https://www.raspberrypi.com/software/)
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2. Open the newly created boot directory on the SD card in your file browser
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3. Enable SSH by creating an empty file: `/boot/ssh`
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4. Edit `/boot/config.txt` to include:
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```
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# For screen and/or ethernet:
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dtparam=spi=on
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# Pick correct ethernet chip:
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dtoverlay=w5500
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# Or
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dtoverlay=enc28j60
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```
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5. Edit `/boot/pikvm.txt` to include your WiFi credentials for initial configuration:
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```
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FIRST_BOOT=1
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WIFI_ESSID="wifi_name"
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WIFI_PASSWD="wifi_pass"
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```
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6. Insert SD card into Pi, connect an HDMI cable to the PI HDMI output (not the added module), connect the USB port to power
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7. After statup, open the IP address in your browser or SSH directly & use `admin/admin` to login
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8. Open the console, login as root & run the install script:
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```
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$ su -
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**Enter password: root**
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# curl https://git.zakscode.com/ztimson/PiKVM/raw/branch/master/install.sh | bash
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