In this example we will connect a 7 segment display to an Arduino. There are 2 types of 7 segment displays, a common anode type and a common cathode type. This example used the common anode type, you can still …
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arduino
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The MMA7455 accelerometer is a sensor that can measure acceleration in three axes. This sensor is commonly available as a breakout board that you can connect to your Arduino. It requires VCC, GND , SCA and SCL to be connected. …
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The HC-SR04 Ultrasonic Sensor uses sonar to determine distance to an object like bats or dolphins do. It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package. From 2cm to 400 cm or 1” to …
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This example switches on all the LEDs on a 8×8 LED matrix, the matrix is controlled by a MAX7219 Typically you will get these in kit format or they may be assembled, here is a picture of a typical …
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In the following example we will demonstrate the HC-SR501 PIR sensor, this sensor has many nice features including the ability to be driven by 5v, low cost (£2 to £3), it has a decent range (7 metres) and a fairly small size. These …
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A reed switch is a small device that when the device is exposed to a magnetic field, the two materials inside the switch pull together and the switch closes. When the magnetic field is removed, the two materials then separate …
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In this example we will show a basic example of connecting a DHT11 Temperature and Humidity Sensor to your Arduino. This is a very nice little, low cost sensor which requires only a pull up resistor to VDD. This can …
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The DS18B20 is a temperature sensor that can be used in various simple projects. This part uses the 1 wire (I2C) bus and you can connect multiple sensors up to your Arduino. The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius …
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