The open source project allows you to control DC appliances based on the temperature of two thermistor inputs. It uses AVR ATmega48 as main processor. The controller has both green and white LEDs to indicate status. The project output is connected to N-Channel MOSFET, AOD444, for switching with current up to 4A. For higher current […]
Open Source AVR Temperature Controller using ATmega48 microcontroller Read More »
USBasp is low cost USB in-circuit programmer for Atmel AVR micontrollers. The hardware consists of an ATMega88 or an ATMega8 and a couple of passive components. The programmer uses a firmware-only USB driver, no special USB controller is needed. Its programming speed is up to 5kBytes/sec. USBasp works under multiple platforms: Linux, Mac OS X
Simple USB AVR programmer, USBasp using ATMega8 microcontroller Read More »
The many posibilities….Non Multiplexed: 1. One or two displays directly to the i/o’s 2. One display with a 74LS247 3. Two displays with a 74HC595 and two 74LS247 Multiplexed: 1. Two displays with a 74LS247 and 2 i/o’s 2. Two displays with a 74HC595 and 2 NPN/PNP * 3. With a special driver IC e.g.
Controlling 7-segments LED displays using AVR microcontroller Read More »
ATxmega programmer has different interface than 8-bit AVRs. It uses PDI interface instead of ISP. If you don’t want to buy new programmer for ATxmega you can try this little hack done by Szu. He uses USBASP (USB in-circuit programmer for Atmel 8-bit AVR controllers) with some modification to program AVR ATxmega. The hack convert
Programming AVR ATxMega using USBasp and ATxmega microcontroller Read More »
Pin numbers: PIN 1 LED SUPPLY VOLTAGE PIN 2 LATCH DATA INPUT B PIN 3 LATCH DATA INPUT A PIN 4 LEFT DECIMAL POINT CATHODE PIN 5 LATCH STROBE INPUT PIN 6 OMITTED PIN 7 COMMON GROUND PIN 8 BLANKING INPUT PIN 9 OMITTED PIN 10 RIGHT DECIMAL POINT CATHODE PIN 11 OMITTED PIN 12
TIL311 / INL0397-1 Hexadecimal Display usning AVR microcontroller Read More »
Easy Input is a head-controlled keyboard and mouse input device for paralyzed users. The system is built based on AVR ATMega32. It uses user’s head movement to control mouse movement on the monitor and user’s eye blinking to activate mouse click. Two main sensor used for this project are Freescale MMA6560Q accelerometers to detect head
Head-Controlled Keyboard And Mouse For Disabled, using AVR and ATMega32 microcontroller Read More »
Description This is a Dot Matrix Scrolling Sign. A Dot Matrix Display has an 5×7 led matrix with 5 columns and 7 rows. The display is controlled by the AVR microcontroller. The rows are controlled by PORTB of the microcontroller, while PORTD puts the data on the columns to make the characters. The Dot matrix
Dot Matrix Scrolling Mesage using AVR microcontroller Read More »
How to program a 93C66 EEPROM chip with an AVR microcontroller? The 93C66 is a serially (MICROWIRE) Electrically Erasable Programmable ROM (EEPROM) chip with 4 kbit (4096 bit, can be ORGanized as 256 x 16bit or 512 x 8bit) memory space. Here a DIL version (which I will use in my moving message sign project)
93C66 EEPROM chip with an AVR microcontroller Read More »
Another version: In this version I took PORTB of the AT90S1200 AVR microcontroller as you can see in the diagram, because this makes it simpler to let 8 LEDs flash back and forth. Set the Data Direction Register of port B as an output, the output will source current. What I did is loading an
8 LED Knight Rider using AVR microcontroller Read More »
STEP 1: Circuit Diagram LCD other Pin’s 1,2,3,15,16 as usual not shown. Temperature Sensor (LM35) Circuit STEP 2: Programming Code Compile Using Codevision AVR View C Code STEP 3: Burn The Hex In ATmega8 View Hex Code (Make Sure grounds are common otherwise it will not work) ::::::For Any Help Write In Our BLOG:::::::: For
Temperature Sensor Using ATmega8 and display using LCD(16×2) Read More »
