Note: We will be attending the STL RPM meet this week so processing of orders may be delayed a few days. We will resume normal operation on July 23.

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16-Channel I2C Relay Board Driver

16-Channel I2C Relay Board Driver

The I2C-RELAY16 is designed to piggyback on commonly available, Chinese-made, boards with 16 SPDT re..

$20.00

40-Channel I2C Digital I/O Expander

40-Channel I2C Digital I/O Expander

The I2C-XIO is a 40-channel digital I/O expander with an I2C interface, based on the NXP PCA9698.&nb..

$55.00

Breakout Board for LTC2990

Breakout Board for LTC2990

The LTC2990 is a Quad I2C Voltage, Current and Temperature Monitor from Linear Technology. It is onl..

$10.00

Breakout Board for LTC2997

Breakout Board for LTC2997

The LTC2997 is a Remote/Internal Temperature Sensor from Linear Technology. It is only available in ..

$10.00

Dual Channel Optoisolator

Dual Channel Optoisolator

Used for providing isolation between a variety of control systems, such as DCC stationary decoders a..

$5.00

Reflective Infrared Proximity Sensor

Reflective Infrared Proximity Sensor

"I was having problems with the sensors for my grade crossing flashers... As soon as I replaced th..

$19.00

Reflective Infrared Proximity Sensor with Qwiic Connector

Reflective Infrared Proximity Sensor with Qwiic Connector

This device is a simple infrared proximity sensor with a 3.3V compatible I2C interface.  It is ..

$10.00

Reflective Infrared Proximity Sensor with Remote Sensor

Reflective Infrared Proximity Sensor with Remote Sensor

"I was having problems with the sensors for my grade crossing flashers... As soon as I replaced th..

$25.00

Single SPDT Relay Module - 12V Coil

Single SPDT Relay Module - 12V Coil

Single SPDT relay for controlling higher-power loads.  12V coil voltage...

$9.00

Single SPDT Relay Module - 5V Coil

Single SPDT Relay Module - 5V Coil

Single SPDT relay for controlling higher-power loads.  5V coil voltage...

$9.00

12V / 1A Power Supply

12V / 1A Power Supply

AC power adapter.  Can be used to power many devices including:Iowa Scaled Engineering Wireless..

$20.00

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