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Expanded detail in RFLink TCP mode (#2292)

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* Expanded detail in RFLink TCP mode

* Update rflink.markdown

* Updated as per Landrash comments

* Update rflink.markdown
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R Huish 2017-03-19 20:51:20 +00:00 committed by Fredrik Lindqvist
parent 118cbc485f
commit 8e4f825ab7
1 changed files with 12 additions and 2 deletions
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source/_components/rflink.markdown
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@ -12,7 +12,7 @@ ha_category: Hub
ha_release: 0.38
---
The `rflink` component support devices that use [Rflink gateway firmware](http://www.nemcon.nl/blog2/), for example the [Nodo Rflink Gateway](https://www.nodo-shop.nl/nl/21-rflink-gateway). Rflink gateway is an Arduino firmware that allows communication with 433 Mhz devices using cheap hardware (Arduino + 433 Mhz tranceiver).
The `rflink` component support devices that use [Rflink gateway firmware](http://www.nemcon.nl/blog2/), for example the [Nodo Rflink Gateway](https://www.nodo-shop.nl/nl/21-rflink-gateway). Rflink gateway is firmware for the Arduino MEGA 2560 that allows communication with 433 Mhz devices using cheap hardware (Arduino + 433 Mhz tranceiver).
The 433 Mhz spectrum is used by many manufacturers mostly using their own protocol/standard and includes devices like: light switches, blinds, weather stations, alarms and various other sensors.
@ -60,7 +60,17 @@ To expose the usb/serial interface over TCP on a different host (Linux) the foll
$ socat /dev/ttyACM0,b57600 TCP-LISTEN:1234,reuseaddr
```
Other methods of exposing the serial interface over TCP are possible (eg: ESP8266 or using Arduino Wifi shield). Basically the serial stream should be directly mapped to the TCP stream.
Other methods of exposing the serial interface over TCP are possible (eg: ESP8266 or using Arduino Wifi shield). Essentially the serial stream should be directly mapped to the TCP stream.
Tested with Wifi serial bridge [esp-link V2.2.3](https://github.com/jeelabs/esp-link/releases/tag/v2.2.3) running on a NodeMCU (ESP8266 Wifi module) with ESP8266 TXD0 (pin D10) and RXD0 (pin D9) connected to Arduino MEGA 2560 RX (Pin 2) and TX (Pin 3) respectively.
<p class='note warning'>
Due to different logical levels, a voltage level shifter is required between the 3.3V NodeMCU and 5V Arduino MEGA 2560 pins.
</p>
<p class='note'>
When re-flashing the Arduino MEGA, disconnect the ESP8266 to avoid programming difficulties.
</p>
```yaml
# Example configuration.yaml entry