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AVR ISP Programmer - This board can program an AVR microcontroler
ATMEL (ATmega8, ATMega32,....) from a parallel printer LPT1 using ISP
functionality In System Programming. This programming type can program
and/or configure microcontroler directly on the target board without rmoving
device and put it on a separate programmer. This board is compatible
with programming software "PonyProg". ….(electronic schematic added 11/08)
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AVR ISP Programmer (In-Sytem programmer) for ATMEL - This AVR ISP
original by ATMEL you can found on "AVR software and technical Library,
April 2003" CD-rom.It small component count I design new PCB and change some
component that easy to build small PCB .The new firmware was writen by John
Samperi for AT90S2313. This code can program more devices. ….... |
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AVR LCD terminal - The LCD display is represented by the connector
X1. It has a HD44780 compatible LCD controller and I'm using the 4-bit
interface to send data to the LCD controller. The LED's are multiplexed.
I've seen the circuit somewhere in the web. It is possible to connect 12
LEDs .... |
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AVR LCD Thermometer LM35 - The LM35 of National Semiconductors that is used
in this project is a precision centigrade temperature sensor, which has an analog
output voltage. It has a range of -55ºC to +150ºC and a accuracy of ±0.5ºC . The
output voltage is 10mV/ºC . The output voltage is converted by the AD convertor of the
AT Mega8. The temperature is displayed on an LCD module. In this example the
thermometer has a range of 0ºC to 40ºC and a resolution of 0.5ºC. If you want to have
a readout in Fahrenheit you can use the LM34. ….(design added 11/08) |
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AVR Line Following Robot - Schematic and c source code for building line
following robot by Priyank Patil from India. ….(electronic schematic added
06/09) |
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[_OLD-ads-dont_upload/OLD I-ADS from web/ad-djandassoc.htm] |
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AVR microcontroller makes improved motor-controller - 17-Oct-02 Issue of EDN
The circuit in Figure 1 provides a novel method of reading the pulse train using an
Atmel (www.atmel.com] AVR processor, from a typical radio-controlled receiver, and to
determine the velocity of a motor. To capture the pulse train from a typical receiver,
you need an external interrupt that triggers based on a rising and a falling
edge....[Design Idea by Anthony Di Tommaso, Cranberry Township, PA, and George
Simonoff, Petersburg, OH] |
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AVR PAL colour bar generator - I start this project 3 weeks ago, because I
was wonder " is that possible, some AVR MCU to create simple colour bars? " At the
beginning I believed that its easy. So, I ask some people who they knew more about PAL
composite video signal. Some of them told me that is impossible to product color
entire-in-software with AVR MCU (microcontroller) because....[Circuit by Vassilis
Serasidis] |
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AVR PC Stepper Motor Driver - With this circuit you can control two
unipolair stepper motors in full step mode via the RS232 serial port of your PC. A
terminal program such as Hyperterminal can be used to control the stepper motors. The
stepper motors can be driven one at a time. # Drives two unipolair stepper motors in
full step mode # Accepts commands via the serial port of your PC. # Can be used with
any OS that has a standard terminal program such as Hyperterminal. # Drives stepper
motors up to 24V, 500mA # Power supply....12-24 VDC ….(design added 11/08)
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AVR Programmer - This simple AVR Programmer will allow you to painlessly
transfer hex program to most ATMEL AVR microcontrollers without sacrificing your
budget and time. It is more reliable than most other simple AVR programmers available
out there and can be built in very short amount of time. ….(design added 11/08)
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AVR Programmer - The ATMEL AVR programmer works with the Windows program
"Ponyprog" which works under 95, 98, XP,....and can be found at
http://www.lancos.com/prog.html On board the AVRs that can be programmed are those in
the schematic. For other members of AVR family or the rest programmable ICs that
Ponyprog can program, there is the J1 connector (CON10) which allows expanding the
programmer's hardware. See Ponyprog's site for other's ICs Ponyprog circuits. The
JUMP1 jumper is there to connect the crystal's circuitry to the 8- pin AVRs or to
disconnect it. Some AVRs have internal RC oscillator and an external XTAL is not
allowed or needed. ….(electronic schematic added 11/08) |
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AVR Programmer + Info - The AVR family of `micro-controllers' (uCs) have
their own, non-volatile memory; your program and data are safe, even if all power is
lost. These chips also contain most of what is needed to program them. If you connect
an AVR to the parallel port of a PC loaded with the right software, a `programmer',
then PC and uC will happily talk each other through the procedure. Uploading a program
to the chip takes just a few seconds and very little hardware. It can even be done
while the uC is `in-circuit', sitting in the apparatus you want it to control. A
program already in the chip can be erased by the same `programmer'; there is no need
for ultra-violet light or a special power supply. ….(electronic schematic added 11/08)
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AVR Student Projects - More student projects on AVR at Cornell University by
Bruce R. Land. ….(Circuit design added 06/09) |
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AVR Thermometer - Build a simple digital thermometer using 20-pin uC, AVR
90S2313 and DS1820. The thermometer is capable of measuring temperature from -55C to
+125C! with 1 degreeC resolution. ….(design added 06/09) |
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AVR Thermometer DS1621 - This small thermometer board can be connected
directly to PORTD of the AVR 2313 Project board. It uses the Dallas DS1621 Digital
Thermometer and Thermostat chip. The DS1621 measures temperatures from -55° to +125°
in 0.5° steps and doesn't need calibration or external components. It has also a
build-in thermostat with high and low set-points which can be programmed by the user.
Below you see the pin description of the DS1621. ….(electronic schematic added 11/08)
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AVR Thermometer TCN75 - This small thermometer board uses the Microchip
TCN75 device. It is a cheaper clone of the LM75, it costs about 2,50 Euro. The TCN75
comes in a SO8 packaging. The TCN75 is a serially programmable temperature sensor. It
has an output that is programmable as either a simple comparator for thermostat
operation or as a temperature event interrupt. Hysteresis is also programmable. ….... |
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AVR Thermometer TCN77 - The TC77 is a serially accessible digital
temperature sensor. Temperature data is converted from the internal thermal sensing
element and made available at anytime as a 13-bit two’s compliment digital word.
Communication with the TC77 is accomplished via a SPI and MICROWIRE compatible
interface. It has a 12-bit plus sign temperature resolution of 0.0625°C per Least
Significant Bit (LSb). The TC77 offers a temperature accuracy of ±1.0°C (max.) over
the temperature range of +25°C to +65°C. When operating, the TC77 consumes only 250 ìA
(typ.). The TC77’s Configuration register can be used to activate the low power
Shutdown mode, which has a current consumption of only 0.1 uA (typ.). ….(electronic
schematic added 11/08) |
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AVR-Based Serial Port IR Receiver - (electronic circuit added 4/05)
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avrDotmatrix - avrDotmatrix - Is a 5x7 LED Matrix Display controlled by a
ATMega8 to display scrolling text, time or temperatures. The pattern is generated with
multiplexing the 5 matrix columns and setting the correct row bits. This
projects is still in development and i'm gonna add a temperature sensor (LM75), a I2C
EEProm and maybe a IR receiver for transmitting texts to the display wireless. See
attached files for a movie, source code and schematic. Copyright Tobias Floery
[url]http://tobiscorner.floery.net/[/url].... |
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AVR-USB Remote Sensor - RemoteSensor is a wireless thermo- and hygrometer
with an USB port on the receiver. You can draw fancy diagrams of temperature and
humidity for up to 16 wireless sensors. ….... |
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