Category: Tutorials

Using UltraSonic & Lcd Display

Required Hardware UltraSonic Ranging Detector Arduino Board Breadboard Jumper Cables Lcd Display  Potentiometer 10K Resistors 220ohm This is a simple Park Sensor System. With this tutorial you will be able to found your distance from another car up to 4m.

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MCP23017 Input Using I2C

Required Hardware Arduino Board Breadboard Breadboard Jumper Cables MCP23017 Expander LEDs Resistors 470ohm The MCP23017 is a 16-bit, general purpose parallel I/O port expander for I2C bus applications. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and

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MCP23017 Output Using I2C

Required Hardware Arduino Board Breadboard Breadboard Jumper Cables MCP23017 Expander LEDs Resistors 470ohm The MCP23017 is a 16-bit, general purpose parallel I/O port expander for I2C bus applications. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and

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Controlling LCD displays with the Hitachi HD44780 driver

Required Hardware Arduino Board LCD Screen (compatible with Hitachi HD44780 driver) 10k Potentiometer Breadboard Jumper Cables The LiquidCrystal library allows you to control LCD displays that are compatible with the Hitachi HD44780 driver. There are many of them out there, and you can usually tell them by

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Displaying text with a Led 8×8 Bi-color Matrix

Required Hardware Led Matrix 8×8 Bi-Color Arduino Board Breadboard Jumper Cables With this tutorial you learn how to connect and display the word “Hello” to Led Matrix 8×8. Below is the wiring that you need only for the red color.

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Control AC with Triac

Required Hardware Triac BTA06 Optocoupler MOC3062 Transistor BC337 Resistor 360ohm 1/2W Resistor 180ohm 1/4W Resistors 1K  Led  Screw Terminal  With this tutorial you will learn how to control 220V AC with your Arduino via Triac. Warning: This project deals with

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Get extra 16 lines of I/O with MCP23017

Required Hardware Arduino Board Breadboard Jumper Cables MCP23017 Expander LEDs Resistors 470ohm Resistors 10K Tact Switches The MCP23017 provides an easy, cheap and effective solution by providing an extra 16 lines of I/O which can be written to and read

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Controlling an Lcd Display (HD44780) via I2C Bus

Required Hardware PCF8574A I/O Expander Lcd Display 16×2 Arduino Board Breadboard Jumper Cables Potentiometer 10K Controlling an Lcd Display (HD44780) via I2C Bus. Learn in this tutorial how to connect your Lcd Display with Arduino using only 2 pins, to

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Playing around with an LDR / Photo-resistor

Required Hardware Arduino Board LDR Resistor 10K Breadboard Jumper Cables The LDR / Photo-resistor is basically a very simple light sensor that changes its resistance with light, lowering with more light.

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Using the Servo Library

Required Hardware Servo Arduino Board Breadboard Jumper Cables Potentiometer The Servo library supports up to 12 motors on most Arduino boards and 48 on the Arduino Mega. On boards other than the Mega, use of the library disables analogWrite() (PWM)

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L293D Motor Driver

Required Hardware H-Bridge L293D DC Motors Breadboard Jumper Cables Batteries Battery Holder   The L293D is a monolithic integrated, high voltage, high current, 4-channel driver.” Basically this means using this chip you can use DC motors and power supplies of

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Interfacing with a DS1307 I2C RTC

Required Hardware DS1307 RTC Crystal 32.768 Capacitor Battery Holder Battery 2032 Breadboard Jumper Cables The DS1307 is actually a very simple I2C chip. It just gives you back 7 bytes of information that is the time.

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Communicating using Bluetooth HC-06

Required Hardware Arduino Board  Bluetooth HC-06 Module Breadboard Jumper Cables The HC-06 serial port bluetooth module provides a wireless communication link between your arduino and any bluetooth capable device. HC-06 is in practice a bluetooth to serial adapter. It is

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Reading from a 4×4 Keypad

Required Hardware Arduino Board Keypad 4×4 Breadboard Jumper Cables The Keypad library allows your Arduino to read a matrix type keypad. 4×4 numeric keypads are most widely used in numerous mini project which requires the user or the operator to give

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Measuring Humidity with DHT11 Sensor

Required Hardware DHT11 Humidity Sensor Arduino Board Resistor 4.7K Breadboard Jumper Cables The dht11 sensor is an economic way to sense the humidity of the air in arduino projects. Small size & low consumption & long transmission distance(20m) enable DHT11 to

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