Multichannel USB Analog Sensor using ATMega48 Microcontroller

January 1, 2013, 11:13 pm

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Sometimes it’s tempting to re-invent the wheel to make a device function exactly the way you want. I am re-visiting the field of homemade electrophysiology equipment, and although I’ve already published a home made electocardiograph (ECG), I wish to revisit that project and make it much more elegant, while also planning for a pulse oximeter, an electroencephalograph (EEG),

Multichannel USB Analog Sensor using ATMega48 Microcontroller is a post from: ATMega32 AVR

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

January 1, 2013, 11:31 pm

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Contents 1 Concept 2 Specification 2.1 Program requirements: 2.2 Simulation/Measurements: 2.3 Documentation: 3 Principle of this on/off controller 4 User Manual 4.1 Controller 4.2 Picture Converter 5 Simulation & Measurements 5.1 R-C Network 1st Order 5.2 LABView Measurements 5.2.1 Distortion of the system 6 Ports & Pins 7 Define Settings  8 Customize to Other Microcontroller

On/Off Controller – Interfacing Touch LCD LC7981 using ATMega Microcontroller is a post from: ATMega32 AVR

Led Blink Code – Hello World Led using atmega16 in C

January 28, 2013, 2:28 am

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Configuring the microcontroller before running it the first time: Fuse bytes : high and low Program them once before you start using the micro-controller Disable JTAG to free up PORTC for normal use Set the correct clock clock option With the hardware set up, run in Command Prompt : For 1MHz internal clock: vrdude -c

Led Blink Code – Hello World Led using atmega16 in C is a post from: ATMega32 AVR

AVR-GCC LCD library – mixed pin support using Atmega328P

January 29, 2013, 4:00 am

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Some time ago we have posted alphanumeric AVR-GCC LCD library. It works fine in 8-bit and 4-bit modes. But it has some limitations that some people may find annoying. One of them is requirement that LCD pins has to be byte aligned for instance in 8 bit mode LCD_D0 … LCD_D7 pins has to be

AVR-GCC LCD library – mixed pin support using Atmega328P is a post from: ATMega32 AVR

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

January 30, 2013, 7:12 pm

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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

Temperature sensor with time and date display on graphical LCD using Atmega32 is a post from: ATMega32 AVR

Interfacing rotary encoder to Atmega32

February 1, 2013, 7:12 pm

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Recently I was working on a project that involved rotary encoder. I thought I’d share some thoughts on how rotary encoder can be interfaced and programmed. Actually it is easy to work with rotary encoders – interfacing is simple – only three wires are required to connect to microcontroller (two for signal (quadrature outputs) and

Interfacing rotary encoder to Atmega32 is a post from: ATMega32 AVR

Running TX433 and RX433 RF modules with AVR microcontrollers using Atmega8

February 3, 2013, 7:12 pm

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Sometimes in embedded design you may want to go wireless. Might be you will want to log various readings of remotely placed sensors, or simply build a remote control for robot or car alarm system. Radio communications between two AVR microcontrollers can be easy when specialized modules are used. Lets try to run very well

Running TX433 and RX433 RF modules with AVR microcontrollers using Atmega8 is a post from: ATMega32 AVR

Programming AVR ADC module with WinAVR using Atmega8 microcontroller

February 5, 2013, 7:12 pm

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Most of AVR microcontrollers have Analog to Digital Converter (ADC) integrated in to chip. Such solution makes embedded designers life much easier when creating projects and programming them. With no need external ADC PCB takes less space, easier to create programs – it saves time and money. As an example lets take Atmega8 microcontroller which

Programming AVR ADC module with WinAVR using Atmega8 microcontroller is a post from: ATMega32 AVR

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Simple signal drawing on graphical LCD routines using Atmega8 microcontroller

February 7, 2013, 7:12 pm

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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

Simple signal drawing on graphical LCD routines using Atmega8 microcontroller is a post from: ATMega32 AVR

Output number when button is pressed using Atmega16 microcontroller

February 9, 2013, 7:12 pm

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This is simple demo program of reading button state, lighting LEDs, sending information via USART. 8 buttons are connected to Atmega16 port A, 8 LEDs to port B via current limiting resistors. While none of buttons arent pressed there is running light on LEDs performed, but when any of buttons is pressed then LEDs display

Output number when button is pressed using Atmega16 microcontroller is a post from: ATMega32 AVR

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

February 11, 2013, 7:12 pm

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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

AVR-GCC 4 bit and 8 bit LCD library using ATmega8 microcontroller is a post from: ATMega32 AVR

Measuring motor speed and display result on LCD using ATmega8 microcontroller

February 13, 2013, 7:12 pm

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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

Measuring motor speed and display result on LCD using ATmega8 microcontroller is a post from: ATMega32 AVR

Simplified AVR LCD routines using ATmega8 microcontroller

February 15, 2013, 7:12 pm

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Controlling numeric LCD isn’t so tricky as it may look like. O course you can find numbers of LCD libraries. One of more universal you can find in AVRLIB library for WinAVR AVR GCC compiler. Main disadvantage of such universal libraries that they compile all functions even if you don’t want them. This way huge

Simplified AVR LCD routines using ATmega8 microcontroller is a post from: ATMega32 AVR

AVR LCD menu routine using ATmega8 microcontroller

February 17, 2013, 7:12 pm

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Lets have some practice and write simple AVR LCD menu routine. For this we need to write LCD control library. I decided not to use one from AVRLIB. LCD controlling isn’t difficult just a few lines of code unless you want to make it more universal. I want to demonstrate how LCD menu control may

AVR LCD menu routine using ATmega8 microcontroller is a post from: ATMega32 AVR

Servo motor control using Atmega8 microcontroller

February 19, 2013, 7:12 pm

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Servo motors are so called “closed feedback” systems. This means that motor comes with control circuit, which senses if motor mechanism is in desired location and if not it continuously corrects an error until motor reaches proper point. Servo motors are widely used in robotics, remote controlled planes, vehicles. So they come in many shapes

Servo motor control using Atmega8 microcontroller is a post from: ATMega32 AVR

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4×4 keypad example using AVR-GCC C language

February 21, 2013, 7:12 pm

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This is as simple routine how to read 4×4 keypad keys using AVR-GCC language. The keypad is connected to AVR microcontroller 8 bit port. In this example it is B port. You can change ports depending on your needs – this is only an example ant it is not the only way to this. Howt

4×4 keypad example using AVR-GCC C language is a post from: ATMega32 AVR

AVR Programmer using ATTINY2313 microcontroller

February 22, 2013, 7:39 pm

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INTRODUCTION AVR910 is a very useful programmer. It can program almost complete range of AVR chips. The original version made by Klaus is here, http://www.mikrocontroller-projekte.de/Mikrocontroller/AVR-Prog/AVR-Programmer.html. The programmer uses ISP capability of AVR chips. AVR910 first appeared in AVR910 application note by ATMEL. It is one of the fastest programmers for AVR. We can use AVR

AVR Programmer using ATTINY2313 microcontroller is a post from: ATMega32 AVR

ATMEL AVR ATMega 8535/16/32 and ATMEL AT89S5x Family Learning Kit

February 23, 2013, 7:35 pm

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Both Mainboard Features Pin compatible for 40-pin AVR and AT89S5x family Microcontrollers Single sided PCB, header for 4 I/O ports, ISP port and RS-232 port Built in +5V voltage regulator LM7805 with heatsink Built in +5V and +12V (depend on input voltage) with terminal screw connector for further expansion Onboard In System Programmer header Schematic

ATMEL AVR ATMega 8535/16/32 and ATMEL AT89S5x Family Learning Kit is a post from: ATMega32 AVR

Data Acquisition System using ATmega8

February 24, 2013, 7:19 pm

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Introduction We can use a PC for connecting the homemade data acquisition hardware and produce the GUI for user friendly graphical presentation easily. One of the project that uses Visual Basic is the Data Acquisition & Logging System using AT89C51 made by Abbas Raza. In this project we use a PC for GUI display and

Data Acquisition System using ATmega8 is a post from: ATMega32 AVR

Project Development Board using ATTiny2313 microcontroller

February 25, 2013, 7:20 pm

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This is my first time using the AVR. I like to learn using the ATTiny 2313, because it is faster than MCS-51, cheap and the circuit is very simple. The chip has only 20 pins. I was interested because I want to build a simple line follower robot controlled by this MCU. Board Construction The

Project Development Board using ATTiny2313 microcontroller is a post from: ATMega32 AVR