The Introduction for HD44780-based LCDs with AVR Microcontroller
#AVR
#HD44780
#LCD
#display
#embedded
#microcontroller
#interface
#programming
#electronics
#tutorial
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LCD to LPT board
The LCD2LPT with Lirc circuit is the compilation of two circuits found on the net on a single board. The first is LCD to LPT interface and the second an IR remote control interface using http://www.lirc.org program. The main circuit...
Metal detector circuit
The project demonstration has been successfully completed, with the only remaining task being the final project report due on June 15, which will be integrated with a conference paper. This update marks the last entry in the electronic notebook, although...
AccelR8
The schematic shows that the AccelR8 only uses 3 ICs. An AVR 8515 microcontroller does the calculation work and controls the other circuits. A MAX603 controls voltage and power-on/power-off. And the chip that makes it all possible, the ADXL202 from...
avr parallel programmer 5
The primary advantage of this programmer is its capability to safeguard both the target device and the PC from unexpected voltages when either side is powered down. The buffers utilized are open-drain, with each buffer connected to the Vcc of...
Adaptor for 8 and 28 pin AVR
This adaptor lets me program 8 or 20 pin DIP devices using the In-System Programmer (ISP) described in Atmel's AVR910 application note. This circuit provides power and clocks for the part to be programmed and power to the ISP circuit....
Perfect Pitch Circuit
Perfect Pitch, which is based on the 8751 microprocessor, is an affordable and straightforward instrument tuner and frequency counter that features a built-in headphone amplifier and a visual metronome. Perfect Pitch converts the audio signal from an instrument into a...
POWER LINE MODEM FOR COMPUTER CONTROL
This circuit employs an 87C57 microcontroller along with several peripherals to convert X-10 power-line carrier-code formats from a personal computer for use with an X-10 power-line interface in a home-control system. Software details can be found in the reference.
The circuit...
Microcontroller and Motor Driver Circuit Board
Efforts were made to minimize the number of wire jumpers on this board, but space constraints arose due to the integration of the microcontroller and motor driver on a single board. The design would have been cleaner without the inclusion...
Power supplies for microcontroller based projects
This document discusses the use of small microcontrollers, such as those from the PIC and Atmel series, which typically operate at 5V and require less than 100mA for complete system functionality. Some PICs can function at lower voltages, such as...