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Atmel SAMD21G Sensor Board

Mike Rankin created this tiny sensor board with an ARM Cortex M0+ microcontroller and OLED display: 0miker0’s Blog: SAMD21G Sensor Board It’s pretty tiny so a 4 layer board made the whole job easier. The top and bottom are pretty much dedicated for components, layer1 are tracks and power traces, layer2 is a ground plane. Mixing up an internal plane and routing layer was interesting. The hardware consists of ...

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Atmel AVR ISP Microcontroller Programmer Project

One of the frustrating part in learning AVR microcontroller for the beginners is the AVR microcontroller programmer. The question is how to program my AVR mircrocontroller; actually if you googling on the internet and search for AVR ISP Programmer there are plenty information; start from simply using your PC parallel port to the sophisticated Atmel owned AVRISP mkII programmer. This will rise another questi ...

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Building the I2C Smart DC Motor Controller with Atmel AVR Microcontroller – Part 1

The idea of building my own I2C (read as I square C) smart DC motor controller is came to me when I was learning and playing together with my son on his LEGO® MINDSTORM® NXT 2.0 about a year ago. The NXT sophisticated controller also called NXT Intelligent Brick is powered by Atmel 32-bit ARM7 AT91SAM7S256 microcontroller and communicating with Atmel 8-bit AVR ATmega48 acting as a co-microcontroller using I ...

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Telepresence Robot using Microchip PIC16F1829 and Atmel AVR ATmega168 I2C Smart DC Motor Controller Microcontroller – Part 2

The I2C (read as I square C) smart DC motor controller is designed using the Atmel 8-bit AVR Atmega168 microcontroller and configured to act as the I2C slave device where it could be controlled by other microcontroller or microprocessor through the I2C SDA (serial data) and SCL (serial clock) interface. In the first part we have accomplished a basic DC motor controller tasks i.e. differential steering and s ...

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The LED Chasing Effect Project using Atmel AVR Microcontroller

One of the interesting projects for most of the embedded beginners enthusiasts or hobbyists is to build the LED chasing effect. In this project we are going to use both the Arduino IDE and Atmel AVR Studio to program the AVR ATMega168 microcontroller, therefore you could learn to use these well known Integrated Development Environment (IDE) to program the project. The LED Chasing Project To complete the pro ...

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Integrating Wiznet W5100, WIZ811MJ network module with Atmel AVR Microcontroller

The rapid penetration of the internet networks into many of today’s modern homes and personal gadgets (e.g. smart phone and smart pads) opening a tremendous useful and interesting embedded system application that could be integrated into our house or known as the intelligent house. For example by putting a small embedded system web server in our house, we could easily monitor such as alarm, temperature or e ...

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Using Transistor as a Switch

Most of microcontrollers work within 5 volt environment and the I/O port can only handle current up to 20mA; therefore if we want to attach the microcontroller’s I/O port to different voltage level circuit or to drive devices with more than 20mA; we need to use the interface circuit. One of the popular method is to use the Bipolar Junction Transistor (BJT) or we just called it transistor in this tutorial. I ...

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