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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.
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.
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.
Sensirion Temperature/Humidity sensors are some of the finest & highest-accuracy devices you can get. The SHT41 sensor is the fourth generation of I2C temperature and humidity sensor from Sensirion.
Adafruit VL53L4CX Time of Flight Distance Sensor - ~1 to 6000mm - STEMMA QT / Qwiic (Ada VL53L4CX Stemma)
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.
Adafruit Right Angle VEML7700 Lux Sensor - I2C Light Sensor - STEMMA QT / Qwiic (Ada VEML7700 Lux StemmaQT)
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.
Adafruit LIS3DH Triple-Axis Accelerometer (+-2g/4g/8g/16g) STEMMA QT /Qwiic (Ada LIS3DH Accelerometer STEMMAQT)
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 Digital Liquid Level Sensor for Arduino (Non-contact Liquid Level)
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.
Adafruit MPRLS Ported Pressure Sensor Breakout - 0 to 25 PSI (Adafruit Pressure sensor MPRLS)
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.
LDR kit (5528/5506/5516/5537/5539) (LDR kit)
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.
MQ-7 Gas Sensor Module - Carbon Monoxide (MQ7 Carbon Monoxide)
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.
SCD41 CO2 Gas,Temperature and Humidity Sensor I2C Module 2.4V-5.5V (SCD41 CO2 HT sensor)
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.
Adafruit Sensirion SHT41 Temperature & Humidity Sensor - STEMMA QT / Qwiic (Ada SHT41 STEMMA QT)
Sensirion Temperature/Humidity sensors are some of the finest & highest-accuracy devices you can get. The SHT41 sensor is the fourth generation of I2C temperature and humidity sensor from Sensirion.