Sensors
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Accelerometers
Accelerometers are devices that measure their acceleration and convert it into a analogue or digital signal.
Accelerometers
Accelerometers are devices that measure their acceleration and convert it into a analogue or digital signal.
Cameras
Cameras are devices that capture images/video and convert them into an analogue or digital signal.
Cameras
Cameras are devices that capture images/video and convert them into an analogue or digital signal.
Carbon Dioxide (CO2) Sensors
Carbon Dioxide (CO2) Sensors

Flow sensors are sensors that measure the flow rate of a fluid or gas. They are used in a wide range of applications, from measuring the flow of water in a pipe to monitoring the flow of air in an engine.

Flow Sensors
Flow sensors are sensors that measure the flow rate of a fluid or gas. They are used in a wide range of applications, from measuring the flow of water in a pipe to monitoring the flow of air in an engine.

Hall-effect sensors are used to detect the presence of a magnetic field.

Hall-effect Sensors
Hall-effect sensors are used to detect the presence of a magnetic field.
Inertial Measurement Units (IMUs)
Inertial Measurement Units (IMUs) are devices that combine accelerometers, gyroscopes and sometimes magnetometers together as a single device. These days they are usually made with MEMS technology and are housed in tiny SMD packages.
Inertial Measurement Units (IMUs)
Inertial Measurement Units (IMUs) are devices that combine accelerometers, gyroscopes and sometimes magnetometers together as a single device. These days they are usually made with MEMS technology and are housed in tiny SMD packages.
Magnetometers
Magnetometers

Magnetic rotary position sensors (a.k.a. encoders) use magnetism to measure the angle of a sensor. This page covers Hall-effect and GMR sensors.

Magnetic Rotary Position Sensors
Magnetic rotary position sensors (a.k.a. encoders) use magnetism to measure the angle of a sensor. This page covers Hall-effect and GMR sensors.
Humidity Sensors
Humidity Sensors
Tilt Sensors
Tilt Sensors
Proximity Sensors
Proximity Sensors

LDRs are simple electrical components whose resistance changes with light intensity. They are useful as a cheap solution for basic light detection.

Light-Dependent Resistors (LDRs)
LDRs are simple electrical components whose resistance changes with light intensity. They are useful as a cheap solution for basic light detection.

Phototransistors are transistors which can be used to detect light. They are similar to photodiodes, but are more sensitive (i.e. have a higher output current for a given amount of light) at the expense of a slower response time. This page covers how they work, schematic symbols, important parameters, circuits, applications, suppliers,and more.

Phototransistors
Phototransistors are transistors which can be used to detect light. They are similar to photodiodes, but are more sensitive (i.e. have a higher output current for a given amount of light) at the expense of a slower response time. This page covers how they work, schematic symbols, important parameters, circuits, applications, suppliers,and more.
Temperature Sensors
Temperature Sensors
Ultrasonic Sensors
Ultrasonic Sensors