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LCD/switch interface

Page 1 of 2 This board can directly connected to the STK 500 board or the ATTiny2313 ISP program board with a 10 pole flatcable on the 10 pin header of the STK500 and the 10 pin header of the LCD/Switch board. The display has 16*2 character positions and is Hitachi HD44780 compatible, and also has a LED backlight that can be switched on/off by a jumper. You can puchase the ATTiny2313 board at www.bizztronix ...

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Variable Power Supply with LCD

Are you an electronic hobbyist? Then an adjustable power supply is a must for your various needs. This project explains how to make a LM317 based adjustable power supply unit with a digital display. Components Required 1.     LM317 IC 2.     Resistor – 240 Ohms 3.     Capacitors – 0.1uF, 10uF 4.     Potentiometer – 5k 5.     30V/1A Adapter (or a transformer + Bridge wave rectifier IC) 6.     ATMega16 Develo ...

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Coin Operated Timer Control Power Supply Box to Control AC Appliances

Saving electricity is a major concern for domestic and industrial units. We always try hard to save electricity in many ways to reduce our electricity bills, but due to some known and unforeseen circumstances our efforts do not normally transform in saving electricity. Adding to our woes we may at times forget to switch off electrical gadgets when we are not using them, especially the AC’s, which not only r ...

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Un-interruptible Bench-top DC Power Supply With Display

This tutorial explains how to make your own power supply unit for all your electronics andembedded system experiments. It also has a backup battery which will be used in case of power cuts and a display. Components Required 1.     SLA 12V battery 2.     Banana Jack connectors female (2 pairs each) 3.     Screw Terminals (1 pair) 4.     SPST switch (ratings 5A or more) 5.     Adjustable Voltage Regulator LM3 ...

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Fingerprint Detection using Microcontroller

REQUIREMENTS: AtMega 16 Microcontroller (development board) Fingerprint scanner module (R305) 16X2 Alphanumeric LCD (for user display) DESCRIPTION: In today’s secure world biometric safety is on the top. Unlike other techniques which make use of passwords and numbers, that are needed to be remembered, biometric techniques make use of human body parts like fingerprints or even iris of your eyes and as we kno ...

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How to display text on 16×2 LCD using AVR microcontroller (ATmega16)

This article is in continuation to the article Single character LCD display using AVR. The aforesaid article shows how to display a single letter on LCD. Moving forward towards learning to work with LCD, this article explains how to display a string on LCD. Displaying string is occasionally used in many applications. The connection of the LCD with the AVR microcontroller (ATmega16) is shown in the circuit d ...

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Display custom characters on LCD using AVR Microcontroller (ATmega16)

This is the most interesting article to play with LCD. After going through the article, you can create any character/symbol which cannot be created using the ASCII values for example smiley. You can even create small games. Conventionally 16X2 LCD is use to display text or numerical values. It is possible to display special characters, your own designed characters too on LCD by using its 5 x 8 matrix block. ...

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