The Arduino development board is a robust and well-documented development board in the Arduino ecosystem. You can use it to build any electronic project for your hobby or prototype.
It is sufficient to create many projects without any external sensors. It has an Atmega328P microcontroller, 14 digital input/output pins, six analog pins, a USB connector, a power jack, and a 16 Mhz resonator.
But if you create a complex project, you may use different sensors. And these sensors come in a variety of usage and properties. You can read and understand their basics in this blog.
What is the sensor?
A sensor is a small electronic circuit or device that detects small signals from our physical world.
Many sensors execute other tasks like; measuring, processing, and responding to these signals.
You may know them by different names; module, shield, or third-party kit. But all have the same task – to feed data signals to the Arduino microcontroller.
Infrared sensor, Ultrasonic sensor is some examples of external sensors.
- IR (Infrared) sensor:
- PIR (Passive infrared) sensor:
- Tough sensor:
- Ultrasonic sensor:
- Temperature sensor:
- Temperature and humidity sensor:
- Flame sensor:
- Metal touch sensor:
- Linear magnetic hall sensor:
- Knock sensor:
- Laser sensor: