Sensor Pinouts

British Telecom Analog (BTA) – Right Hand
- Pin 1 = Sensor output (+/-10V)
- Pin 2 = GND
- Pin 3 = Vres (resistance reference)
- Pin 4 = AutoIDENT (not supported on all sensors)
- Pin 5 = Power (+5VDC)
- Pin 6 = Sensor output (0-5V)
Resources
- Connect a Vernier analog sensor to a non-Vernier interface or prototyping board using our Analog Protoboard Adapter »
- How do I use Vernier BTA sensors with a different A-to-D converter?

British Telecom Digital (BTD) – Left Hand
Pos. | Default | Motion Detector | Photogate | Radiation Monitor | Rotary Motion |
---|---|---|---|---|---|
Pin1 | DIO0 | Echo | Input | Countinput | CCWcount |
Pin2 | DIO1 | Init | CWcount | ||
Pin3 | DIO2 | AutoID | |||
Pin4 | PWR (5.3V) |
PWR (5.3V) |
PWR (5.3V) |
PWR (5.3V) |
PWR (5.3V) |
Pin5 | GND | GND | GND | GND | GND |
Pin6 | DIO3 | X4res. |
Connect a Vernier digital sensor to a non-Vernier interface or prototyping board using our Digital Protoboard Adapter »

Circular DIN Plug – 5 pin
- Pin 1 = Sensor Output
- Pin 2 = Not used
- Pin 3 = ID Output (not supported on all sensors)
- Pin 4 = Power (+5VDC)
- Pin 5 = GND

Circular DIN Plug – 8 pin
- Pin 1 = Sensor Output
- Pin 2 = Not used
- Pin 3 = ID Output (not supported on all sensors)
- Pin 4 = Power (+5VDC)
- Pin 5 = GND
- Pin 6 = +12VDC
- Pin 7 = -12VDC
- Pin 8 = DAC

1/4″ Stereo Jack

Pin Assigments for the Phone (RJ-11) Jacks
Pin Letter | Pin | Port 1 | Port 2 | AUX8 |
---|---|---|---|---|
A | ID input/ Digital output |
Analog In 10/ Digital Out 2 |
Analog In 7/ Digital Out 3 |
Analog In 6 |
B | Ground | Ground | Ground | Ground |
C | +5 Volts | +5 Volts | +5 Volts | +5 Volts |
D | Analog input | Analog In 9 | Analog In 8 | Analog In 4 |
E | Digital output | Digital Out 0 | Digital Out 1 | Digital Out 0 |
F | Digital input | Digital In 0 | Digital In 1 |
Making your own cable, extension, interface, or adapter? Here is where you can find BT connectors and sockets »
Find an adapter to connect sensors to legacy interfaces. Adapter wizard »