The pilight USB Nano software allows any computer with an USB port to work with pilight.

• Can run on any AVR Arduino compatible board, like Arduino UNO, Nano, MEGA, Leonardo, etc. any clock speed allowed.
• Can run on other platforms like Arduino SAMD boards (DUE, M0, etc.), ESP8266, ESP32, Teensy, even Raspberry Pico.
• Works using the MCU's internal USB-Serial COM port (CDC/ACM device class) or any onboard/external USB-Serial adapter.
• Fully Arduino IDE compiler environment compatible. Arduino PRO IDE and Arduino CLI also supported.
• Configurable RF receiver output (RX_PIN); must be interrupt attachable, depends board (D2 as default).
• Configurable RF transmitter input (TX_PIN); can be any digital pin, depends board (D5 as default).
• Support to configure a digital output so that a led blinks at valid RF code reception.
• Support to configure send of every 'space' before 'pulse', which stripped in previous version firmware.
• Support to configure initial RX settings at boot, like as 's:22,200,3000,51000@'.
• Support to configure show settings at boot, like as: 'v:20,200,4000,82000,2,1,1600@'.
• Support to configure add line feed '\n' each line output.
• Support to configure a tx enable pin (PTT_PIN), useful for use transceivers.
• Fix TX pulse generator drift from 9.95µS to 0.69µS (AVR@16Mhz).
• Improve RX pulse meter resolution from 10µS to 4µS (AVR@16Mhz).

1. Compile the firmware:

- Open Arduino IDE application
- File> Open> Select file "pilight-usb-nano.ino"
- Tools> Board> Select your board
- Sketch> Verify/Compile

2. Flash the firmware on the board:

- Tools> Port> Select your USB/Serial COM port
- Sketch> Upload

3. Connect the receiver data pin to configured RX_PIN (D2 as default) and the transmitter data pin to configured TX_PIN (D5 as default).
4. Connect the Arduino to your computer.
5. Check what Serial/COM port the Arduino is using.
6. Configure pilight to interface with the Arduino (see below).
7. Start pilight normally and it should work OOTB.

Linux example:

	"hardware": {
		"433nano": {
			"comport": "/dev/ttyUSB0"
		}
	}

Windows Example:

	"hardware": {
		"433nano": {
			"comport": "COM5"
		}
	}

Transmitter code:

c:011010100101011010100110101001100110010101100110101010101010101012;p:1400,600,6800;r:4@

• Receive with spaces:

  c:011010100101011010100110101001100110010101100110101010101010101012;p:1400,600,6800@
  

• Receive without spaces:

  c:100011100010001010111010000000002;p:1400,600,6800@
  

You can decode and encode any code using an external tool "picoder" from https://github.com/latchdevel/picoder

Decode example:

$ picoder decode -s "c:011010100101011010100110101001100110010101100110101010101010101012;p:1400,600,6800@"

return:

  [{
    "conrad_rsl_switch": {
      "id": 1,
      "unit": 2,
      "state": "on"
    }
  }]

Encode example:

$ picoder encode -f '{ "conrad_rsl_switch" : {"id":1,"unit":2,"on":1} }' -r 5

return:

c:011010100101011010100110101001100110010101100110101010101010101012;p:1400,600,6800;r:5@

• Support to measure RSSI of receivers that provide it.

Copyright (C) 2015 CurlyMo. This file is part of pilight. GPLv3.

Copyright (C) 2021 Jorge Rivera. GNU General Public License v3.0.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.