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Showing posts from May, 2016

How to Build Electronics calculator using Arduino uno and TFT Display Shield

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Electronics calculator using Arduino uno and TFT Display Shield Hello  friends,
                     Today i have something new to show you. As earlier mention in the title i designed a ELECTRONIC  CALCULATOR  using Arduino uno and 2.4" TFT Lcd Display Shield.
Construction                        The system is build around arduino uno r3 microcontroller and 2.4" tft lcd shield. The shield is designed in such way that no connection error will occur. Arduino uno can be powers by 9v or 12v adapted or USB cable. on board 3.3v regulator is available on LCD shield. LCD shield gets 5v supply from arduino and convert it into 3.3v using regulator ic 1117-3.3. further this supply is given to the LCD. LCD consist of 2.4" resistive touch pad which use as input device for the system.The LCD is interfaced to arduino with 8 bit data bus and 5 bit control bus. this control bus is connect to 5 analg pins of arduino and data bus is connected to digital i/o pins. Touch pad is also interface…