Sensors

Bosch has been a leader in barometric pressure sensors, from the BMP085. BMP180, and BMP280... now we've got the next generation, the Adafruit BMP388 Precision Barometric Pressure sensor.

A year ago we designed a high-current-output Infrared Transmitter STEMMA which makes it easy to create high-powered IR LED blasters. Now we've sat down to design the other side, the super sensitive wide-range Adafruit Infrared IR Remote Receiver with two selectable IR receiver chips.

The Adafruit VL53L4CX Time of Flight Sensor is another great Time of Flight distance sensor from ST in the VL5 series of chips, this one is great for long distances - it goes up to 6 meters compared with 4 meter max of the VL53L1X.

Rotary encoders are soooo much fun! Twist em this way, then twist them that way. Unlike potentiometers, they go all the way around and often have little detents for tactile feedback.

Vishay has a lot of light sensors out there, and this is a nice simple lux sensor that's easy to add to any microcontroller. Most light sensors just give you a number for brighter/darker ambient lighting.

The Adafruit LIS3DH Accelerometer Breakout packs low-power consumption, flexible I2C/SPI connectivity, and advanced motion detection into a compact, STEMMA QT-ready board—perfect for wearables, motion sensing, and battery-powered projects.

Non-contact liquid level sensor for Arduino, using a high-speed chip for toxic or high-pressure liquids. Compatible with Gravity interface, with adjustable sensitivity.

Unlike other pressure sensors, you can easily attach a tube to it, to measure air pressure inside a close space. In particular we think this would be a great sensor for use with making DIY assistive tech "Sip & Puff" interfaces, or measuring the pressure within a vacuum chamber or other pressurized container.

This is low cost LDR (Light Dependent Resistor). Basically it is a light sensitive resistor, the resistance will decrease when the surface is expose to light. It is widely used to detect Day or Night, example in automatic car porch light. 

The MQ-7 is a handy breakout board that measures carbon monoxide in the air with great accuracy, tracking levels from 20 up to 2000 ppm. As CO levels rise, the sensor's internal resistance drops, sending an analog signal that development boards like an Arduino can easily read.

A digital hall effect sensor module combining the A3144 hall sensor with an LM393 comparator for reliable magnetic field detection.

The Decoy Trigger handles the complex "handshake" conversation between a power source and a device. By mimicking the signals of a high-end smartphone, it tells the charger to switch from the standard 5V up to 9V, 12V, 15V, or 20V.

Carbon dioxide is a critical indicator of indoor air quality that can affect human cognitive abilities and well-being. The SCD40/SCD41 are Sensirion's next-generation miniaturized CO2 sensors, offering high precision and cost-effectiveness.