nadapi

A tool that implements the RS-232 protocol for NAD amplifiers. The protocol documentation can be found here.

The tool has two modes:

• server - Serves a REST API where commands can be sent to the amplifier over HTTP.
• send - Sends a command directly to the amplifier and prints the response.

It's developed primarily for the NAD C356BEE, but should work for other NAD amplifiers that have a RS-232 port.

Usage

$ nadapi -h
Usage:
  nadapi [OPTIONS] <list | send | server>

Help Options:
  -h, --help  Show this help message

Available commands:
  list    List commands
  send    Send command
  server  Start API server

Examples

Send command and print reply:

$ nadapi send 'model?'
Main.Model=C356BEE

$ nadapi send 'power?'
Main.Power=On

$ nadapi send 'power=off'
Main.Power=Off

Send a command using the REST API:

$ nadapi server -l :8666
2015/04/06 17:37:57 Listening on :8666
^Z

$ curl localhost:8666/api/v1/state/power | jq .
{
  "power": false
}

$ curl -XPATCH -d '{"value":"on"}' localhost:8666/api/v1/state/power | jq .
{
  "power": true
}

Frontend

A basic webapp frontend is included in static/, and can be served by using the -s option of the server subcommand.