Category Archives: AVR Development Board

motor_driver_avr40dev

Simple Single Motor Control using AVR ATmega16

Microcontrollers are good when it comes to brain, but to do anything in real world they need muscles too ! Their muscles are electromechanical actuators like motors. Their are several types of motor available to do various type of motion. The simplest of them are DC motors. They can generate rotary motion and when wheels are attached to their shaft they can be used to move a body. Applications include motion of a robot on flat surface like a floor. Normally a DC motors runs at a high RPM, so to slow it down a gear head is attached in front of it. This makes RPM come down to values such as 50 RPM to 500 RPM. This also increase the torque generated by the motor. The image below shows a 12v DC Gear Motor. The front black portion contains the gear assembly. Fig. A DC Gear Motor In this tutorial we will learn the basics about these motors and how to control them using a microcontroller. DC Motor Rotates in one direction when you apply power to its terminals. When you reverse the polarity of the supply it will rotate in opposite direction. Since a DC Motor requires current in the range of 400ma to 1000ma we cannot supply them directly from the MCUs I/O Pins. We need some […]

New 28 PIN AVR Development Board

We have launched a low cost 28 PIN AVR Development board for those you want to get started with AVRs on a budget. As this board provides a clean circuit for basic AVR connection you can learn to program hello world app (a LED blinky) in just few hours! If you are tired of wiring the basic AVR connection for every project, this board can save you a lot of time. You can order it from the online store and pay using Indian Debit Cards (or ATM Cards) or Netbanking. The board will be delivered to your door steps in 3-5 days any where in India. 28 PIN AVR Development Board.   28 PIN AVR Development Board. Buy 28 PIN AVR Development Board at Rs. 249 Only Features: Compatible with 28 pin chips like ATmega8,ATmega48,ATmega168, ATmega328 etc. Atmel AVR ATmega8 28 PIN microcontroller Included. 16 MHz crystal for maximum speed. All ports available on standard 0.1inch (2.54mm) male headers. LC Filter on AVcc for clean ADC performance. Decoupling capacitors on all power pins. Standard ISP Header (Can be programmed with our USB AVR Programmer v2.0). On/Off switch. 9-18V DC input. 5v regulated output for supplying extra peripherals.(3x). Reset Button. Power Indicator LED. Free Prototyping area for customization(78 holes at 0.1 inch distance) FR4 PCB with solder mask and silkscreen. All […]

AVR Development Board – Assembly Instructions

A well designed development board is always essential for smooth development/experimentation with microcontrollers. Every hobbyist must have some kind of development setup. Some people use breadboard while others use veroboard to fabricate their development system. Many also use ready made off the self development board. Development is not very easy if you use only bread boards or veroboard. If you use bread board, after few days of use the wire will become loose or come out of hole. While making large circuit in a veroboard is a tedious job. To solve these problem I decided to make a low cost development board that has the following features. Low Cost All Basic connection required for developing application with AVR MCUs A Serial Port Prototyping area (like a veroboard) Incircuit Programmable with USB AVR Programmer Supports 40 PIN MCUs like ATmega16 and ATmega32. Buy Fully Assembled and Tested AVR Development Board So if you use this board, its lots easier. The basic circuit for MCU (like power supply,reset,ISP,serial port etc) are already done on a high quality PCB and some space is left for you to add other project specific components. You can also design other part of your project in bread board. But this time your bread board will be lot cleaner as major tested circuit is on the development board. […]