Simple VGA/Video adapter with ATmega AVR circuit

The gap between TTL (Transistor-Transistor Logic) devices and personal computers can be effectively bridged with modern microcontrollers. These microcontrollers not only incorporate a central processing unit (CPU) but also include program and data memory, EEPROM, input/output (I/O) ports, timers, and...

microcontroller Generate a reset signal from a falling edge trigger

The microcontroller design features the microcontroller (MCU) in hibernation mode, which can only be awakened by a pulse (high-low-high) signal on the reset pin (active low). An accelerometer or an external real-time clock (RTC) serves as the wake-up source. The...

Game-scoring Display ScreenCircuit

The game-scoring display screen circuit diagram is depicted in the image above. The circuit consists of an add/subtract scoring input circuit, an add/subtract scoring circuit, a counting-decoding display circuit, and a reset circuit. The game-scoring display circuit is designed to facilitate...

Microcontroller Programming 2

For this week's assignment, a chip design was provided, and the task was to incorporate a button and an LED (light-emitting diode). The objective was to fabricate the chip and program it to interact with the light and button. Given...

Java virtual machine for the Atmel AVR ATmega8

The NanoVM is a java virtual machine for the Atmel AVR ATmega8 CPU, the member of the AVR CPU family used e.g. in the DLR Asuro robot, manufactured by AREXX engineering. With the NanoVM, the Asuro can be programmed in...

AVR programmer

To program some AVR microcontroller unit (MCU) you will need an AVR programmer. The better way to do that is to buy some development kit like STK-500. This kit has the advantage to give you serial port, LCD connector, SRAM...

How to display text on 16x2 LCD using AVR microcontroller (ATmega16)

This article continues from the previous one regarding the single character LCD display using an AVR microcontroller. The prior article demonstrated how to display a single letter on an LCD. This article advances the learning process by explaining how to...

Microcontroller Clapper Switch

For those who prefer convenience, it is possible to turn the bedroom light on or off without leaving the bed simply by clapping hands. This concept inspired the design of a clap-activated light control system. Various clap switch projects can...

AVR terminal for serial port

The LCD display is represented by the connector X1. It has a HD44780 compatible LCD controller and is using the 4-bit interface to send data to the LCD controller. The LEDs are multiplexed. It is possible to connect 12 LEDs...