A remote for Korad power supplies

A simple Korad (and clones) power supply server.

Design Goals:

• Dirt simple REST API so other automated frameworks can toggle devices
• No changing of voltage / current. i.e. Idiot-proof
• Simple frontend and backend design - only a single source
• Single binary output - all files embedded, no mucking around

Running

Grab the binaries from the Releases.

./koradmote Dev1 /dev/tty/Blah Dev2 /dev/tty/Junk

API

All Devices

/device/ Returns the current state of all devices

curl -s localhost:8000/device/
{
  "Dev1" :{"voltage":0.0, "current":0.0, "power":false},
  "Dev2" :{"voltage":0.0, "current":0.0, "power":false},
  "Dev3" :{"voltage":0.0, "current":0.0, "power":false},
  "Etc🚀":{"voltage":0.0, "current":0.0, "power":false}
}

Single Device

/device/{name}/ Returns the state of just a single device or 404 Not Found for invalid device name

curl -s localhost:8000/device/Dev1
  {"voltage":0.0, "current":0.0, "power":false}

Toggle Devices

/device/{name}/toggle will toggle the device

/device/{name}/toggle/true will set the device to the target state

The reponse will return the state of the power supply after the toggle or 404 Not Found for invalid device name and 500 Internal Server Error for toggle/serial comms failure.

curl -s localhost:8000/device/Dev1/toggle
  {"voltage":0.0, "current":0.0, "power":false}

curl -s localhost:8000/device/Dev1/toggle/false
  {"voltage":0.0, "current":0.0, "power":false}

Building

Assuming Node.js and Rust are installed

  npm install
  npm run build
  cargo build --release

Note that the debug version of the binary will use the files in the /build/ folder for faster development. The release build will embed the files inside the binary

You can create some virtual serial ports on linux via:

sudo socat -d -d pty,link=/dev/ttyS0,raw,echo=0 pty,link=/dev/ttyS1,raw,echo=0

Logging

There are various logging levels implemented for this application:

LOG=DEBUG ./koradmote
LOG=INFO ./koradmote
LOG=OFF ./koradmote