Sensors, an overview
The idea is to give examples for a variety of available sensors.
To measure time, temperature, pressure, magnetism, distance, light level, etc.
- Measuring distances, using ultrasonic and other sensors.
- Reflection sensors, a sensor that uses (infrared) light to detect the presence of an object.
Some examples
| Temperature | Light | Motion | Contact | Reflection |
|---|---|---|---|---|
| LM75 | APDS9300 | SB312 | Microswitch | CNY70 |
 |  |  |  |  |
| Sensor | Purpose | Short description |
|---|---|---|
| HC-SR04 | Measure distance | Measures distance using Ultrasonic sound |
| LM75(A) | Temperature | Measures temperature with .5° Celsius resolution |
| TMP75 | Temperature | Measures temperature with 0.0625° Celsius resolution |
| APDS9300 | (IR)Light | Infrared and visual light sensor |
| PIR | Motion detector | Passive infrared motion detector |
| Touch | Touch sensors | Mechanical switch or capacitive touch switch & slider |
| BME280 | Pressure, temperature & humidity | Measure pressure, temperature and humidity |
| TCND5000 | Reflection sensor | Detection of nearby subjects, other examples are: IS471F or CNY70, see Ushi book |
More info look at each individual subject.