LCD Projects

Measuring motor speed and display result on LCD using ATmega8 microcontroller

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For measuring motos speed there can Optical interrupter used like H21A1. This is a device where IR LED and photo-transistor is coupled in to plastic housing. The gap between then allows interrupting signal with opaque material and this way switching the output from ON to OFF. This device can be connected to Microcontrollers ICP pin […]

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AVR-GCC 4 bit and 8 bit LCD library using ATmega8 microcontroller

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Standard alphanumeric LCD display controlled by 74HC164 LCD controller can accept 8 bit data bytes or 4 bit nibbles. Earlier my 4 bit and 8 bit LCD libraries were split in separate files as they were used in different projects. Now they are merged in to one library where simple logic is implemented to select

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Simple signal drawing on graphical LCD routines using Atmega8 microcontroller

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During spare time I have been playing with graphical LCD. This time I decided to display simple signals that are stored in microcontroller memory. The idea was to read signal values from look-up table and display waveform on Graphical LCD. To make things more interesting I divided LCD screen in to smaller four screens so

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Temperature sensor with time and date display on graphical LCD using Atmega32

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Some time ago I’ve build a prototyping board with graphical LCD. It have served for various small projects and prototypes. Had a spare temperature sensor DS18B20 and decided to put simple temperature display project. GLCD board is equipped with Atmega32 microcontroller running at 16MHz. DS18B20 sensor is connected to port D pin 6. LED connected

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On/Off Controller – Interfacing Touch LCD LC7981 using ATMega Microcontroller

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Concept of Touch LCD LC7981 using ATMega An on/off controller is the simplest form of a temperature control device. The output from the device is either on or off, with no middle state. An on-off controller will switch the output only when the temperature crosses the set-point. For heating control, the output is on when the

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Minimum Mass Wireless LCD Display using ATtiny2313 microcontroller

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A 2 line X 16 character LCD display that is battery operated and works without an external connection. The basic MinThe basic Minimum Mass Wireless Coupler technology is described and links to other projects on this site that use the Minimum Mass Wireless Coupler are located on the web page, Minimum Mass Wireless Coupler. Downloads

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Circuit and firmware to support Seiko-Epson G1216B1N000 dot graphics display using ATtiny2313

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A serial interface and bias supply for the Seiko-Epson G1216N000 using an AT90S2313 because there just aren’t enough applications examples for this display on the web. Download Assembler source code I was looking for an LCD display that I could use to display waveforms on the workbench. The selection criteria for the display module itself

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A serial interface for the Truly MTC-C162DPLY-2N using ATmega8515

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The 10k potentiometer, just above the ISP connector near the lower middle of the board,is used to adjust the display contrast according to your vertical viewing angle. DOWNLOADS ATTINY2313/AT90S2313 AVRStudio assembler source, LDCbutons040904Ca.htm ATTINY2313/AT90S2313 AVRStudio assembler source, UPDATED FOR COMPATIBILITY WITH NEWER VERSIONS OF THE ASSEMBLER, LDCbutons040904C_updated_a.htm Truly LCD driver include file, 2x16lcdinc.htm tlcd309Ba.htm AT90S8515/ATMega8515

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LCD Car Accelerometer using microcontroller

LCD Car Accelerometer using microcontroller

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Introduction The circuit is drawn for measurement of acceleration from  –1000 mg until + 1000 mg. It can be placed in kantra’n the car and be supplied from the sheath of electric lighter. The circuit includes one indicative LED and a screen LCD. Description The measurement of acceleration becomes with the use of IC from

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