HARDWARE.md

Hardware for the rfbb driver

Latest update 2017-01-30, Joachim Nilsson

Note! A monospaced font might make it easier to read tables below!

RF Transmitter module pinout

A common RF transmitter module like TX433N (433.92 MHz) has the following pinout:

Pin    Function
---------------
1      GND
2      Digital in
3      VCC
4      Antenna

Make sure that VCC is able to operate from 5V DC and the Data In threshold is compatible with 3.3V logic.

The range is often 3 - 12 V DC, but there might be other versions!

RF Receiver module pinout

A common RF receiver module, like RX433N (433.92 MHz) has the following pinout:

Pin    Function
---------------
1      GND
2      Digital Out
3      Linear Out
4      VCC
5      VCC
6      GND
7      GND
8      Antenna

Make sure that VCC is able to operate from 5V DC and the Data Out threshold is compatible with 3.3V logic.

The range is often 3 - 12 V DC, but there might be other versions!

Raspberry Pi Example

RPI               TX433N/RX433N
-------------------------------------------------------------
Pin, function  -  Pin, function
P1-02, 5V0     -  3, VCC
P1-06, GND     -  1, GND
P1-11, GPIO17  -  2, Data in
P1-13, GPIO27  -  2, Data out
No connection  -  4/8, Antenna. Connect a 170mm wire as antenna

RF Sockets

There are several compatible 433 MHz remote controllable sockets on the market using the same base protocol.

• 4teiliges Funk-Schalt-Set 433 MHz (German/Swedish version)
• Remote Controlled Mains Sockets 5 Pack (UK version)
• Fjärrströmbrytare 433 MHz (Swedish)