HC-SR04 Ultrasonic Sensor example

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 13. Continue reading

8×8 LED matrix example

This example switches on all the LEDs on a 8×8 LED matrix, the matrix is controlled by a MAX7219   LED matrix Typically you will get these in kit format or they may be assembled, here is a picture of a typical module 8x8. Continue reading

HC-SR501 PIR sensor example

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 sensors can. Continue reading

Reed switch example

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 and the switch will. Continue reading

nokia 6100 lcd shield example

The Colour LCD Shield provides an easy method of connecting the popular Nokia 6100 LCD to your Arduino. The board comes as shown with the 128x128 mini colour LCD, as well as a backlight driver circuit (boosts to 7V), and three momentary. Continue reading

LoL Shield Random LEDs flashing example

The LoL Shield is a charlieplexed LED matrix for the Arduino. The LEDs are individually addressable, so you can use it to display anything in a 9×14 grid. Scroll text, play games, display images, or anything else you want to do. It comes as a kit. Continue reading

RGB Led example

A common anode RGB LED is three one colour LEDs (one red, one green, and one blue) housed in a single package. A common anode RGB LED is the most popular type but you can also get common cathode types as well, our example is based on one of. Continue reading

DHT11 Temperature and Humidity Sensor example

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 easily be constructed on a mini. Continue reading

Piezo Buzzer example

In this example we will connect a Piezo buzzer to our arduino and play some basic sounds, this uses the PWM functionality of the Arduino. Schematic piezo schematic Layout piezo layout Code void setup() { // declare pin 9 to. Continue reading

DS18B20 temperature sensor example

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. Continue reading