The WDA rotary potentiometer allows positional feedback for a rotating part in your application. It can also be used as a dial to control variables such as volume, brightness, or sensitivity.
It has 360° of mechanical travel and 345° of electrical travel, meaning that it can be used for measuring continuous rotation with a small blind spot between each rotation.
This sensor can be used with any device with an analog input. Simply cut and connect a 3-wire Phidget cable as described in the Phidget Cable section on the Compatible Products tab.
|Sensor Type||Input (Rotary)|
|Controlled By||VoltageRatio Input|
|Potentiometer Impedance||5 kΩ|
|Range of Rotation||(continuous) 360°|
|Effective Electrical Travel||345°|
|Shaft Diameter||6 mm|
|Lifespan||50 million actuations|
This potentiometer can be read by any Phidget with an Analog Input or VINT Hub port. It will connect to either one using a Phidget cable; see the diagram in the Phidget Cables section below for wiring instructions. VINT Hub ports can behave just like Analog Inputs, but have the added flexibility of being able to be used as digital inputs, digital outputs, or ports to communicate with VINT devices. For more information about VINT, see the VINT Primer.
|Image||Part Number||Price||Number of Voltage Inputs||Voltage Input Resolution|
|HUB0000_0||$30.00||6 (Shared)||* 16 bit|
|SBC3003_0||$120.00||6 (Shared)||* 16 bit|
To easily connect this potentiometer to a Phidget we recommend you use a Phidget cable. Just snip off the connector from one end of the Phidget cable, strip the ends of the wires and solder them to the pins on the potentiometer. The green terminal on the potentiometer is the wiper, and should be soldered to the data line. The other two terminals should be soldered to power and ground. Soldering ground to the middle terminal will result in increasing SensorValue with clockwise rotation, while soldering power to the middle terminal will result in decreasing SensorValue with clockwise rotation. You can solder multiple cables together in order to make even longer Phidget cables, but you should be aware of the effects of having long wires in your system.
|Image||Part Number||Price||Cable Length|
If you need to connect the shaft of this potentiometer to the shaft of another device, you can use a shaft coupler:
Here are all form factors and sizes for rotary potentiometers that we have available.
|Image||Part Number||Price||Sensor Type||Controlled By||Range of Rotation|
|1116_0||$11.00||Input (Rotation)||VoltageRatio Input||3600°|
|3583_0||$35.00||Input (Rotary)||VoltageRatio Input||(continuous) 360°|
You may also be interested in this encoder-based dial:
|Image||Part Number||Price||Controlled By||Encoder Resolution|