For example, I use 5 RJ-11 connectors in the remote sensor hub project. They are used to connect to DC servo motor, light sensor, HC-SR04 ultrasonic sensor, DS18B20, and DHT22.
The RJ-11 connectors on the sensor hub are connected to individual sensor / motor module via standard RJ-11 6P6C cable.
Below is the layout of the sensor / motor module. By default, pin 2 and 5 are for GND and VCC respectively for all the sensor / motor modules. Pin 1, 3, 4, and 6 are for signals.
Below is the layout of the 6-pin of the RJ-11 connector on the remote sensor hub.
RJ-11 adapter board with DS18B20, Light Sensor, DHT22, and HC-SR04.
If you are interested in trying out, below is my offer for the RJ-11 sensor / motor adapter.
RJ-11 Adapter Module Kit x 2. The kit includes the following items:
- RJ-11 6P6C connector x 2
- 1 x 6 pin head x 2
- RJ-11 Adapter PCB x 2
Note, you need to solder the components yourself before the module could be put to use.
Price: US$8/kit (contains components for 2 RJ-11 adapter module);
Item Location: Taipei, TAIWAN;
Shipping: Paid by buyer.
Note, in the link below, you could find similar module sold for US$12 /ea.
RJ11/RJ12 6P6C Breakout Board