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Drive a stepper motor with acceleration and deceleration using an Allegro driver on ATmega8

May 18, 2017, 1:03 am
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The stepper motor is an electromagnetic device that converts digital pulses into mechanical shaft rotation.Most common types of stepper motor can be bipolar or unipolar, depending on the winding. To...

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AVR 16bit Stereo Wave Player

May 19, 2017, 1:18 am
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Introduction This project aims to implement a cost-effective wave player based on AVR (ATmega / ATiny Series) with CD-Audio Quality, which can play 8-bit/16-bit Mono/Stereo standard RIFF (Resource...

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CMR Robot Arm

May 20, 2017, 1:59 am
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Our project was mainly designed for the Cornell Mars Rover project team (CMR), which will be using the robotic arm for competition to complete many different tasks in the deserts of Southern Utah....

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Reading temperature on AVR Atmega using a thermistor with NTCtemp library 02

May 21, 2017, 2:13 am
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A thermistor is a type of resistor whose resistance varies significantly with temperature, more so than in standard resistors. NTCtemp is a simple AVR library to read temperature from a...

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CT Sensor on AVR ATmega

May 22, 2017, 2:52 am
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A CT (Current Transformers) sensor is a device used to measure alternating current. A CT sensor, like other current transformers is made by a primary winding, a magnetic core and a secondary winding....

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Building a Wifi Radio – Part 7, Building an LCD Display

May 23, 2017, 3:10 am
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This is the seventh part of an ongoing series about building a low cost, open source streaming internet radio.  If you haven’t already, check out the previous parts (see the links at the end of this...

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Week 11: Networking with ESP8266

May 24, 2017, 8:36 am
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For this week I set out to make a board that will show realtime MBTA bus arrival times using the ESP8266 wifi module and a LCD. Seemed doable. People of the internet have been excited about the...

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AVR Thermostat

May 25, 2017, 8:41 am
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This thermostat is built around an ATMega164 and a TC1047A temperature sensor. It controls your furnace and air conditioner. It is not programmable, although it has a clock and is capable if some...

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AVR HVSP Fuse Resetter

May 26, 2017, 11:32 am
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description in working w/ 8 or 14 pin avr devices, i would sometimes want to use the RESET pin as io as the io pin count is low. but doing so will disable further programming via SPI. i do not need a...

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RFID based security system using AVR ATmega32 microcontroller

May 26, 2017, 9:36 pm
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RFID technology brought a great revolution in our life as it simplifies the machine communication. RFID’s are used almost everywhere today Schools, hospitals, industries and much more. This article...

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Veronica – VRAM

May 27, 2017, 9:45 pm
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I considered subtitling this article, “adventures in breadboard noise”, since that’s what I spent most of my time dealing with. In any case, let’s recap where we were. Veronica’s video generator was...

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RSS Reader using AVR mega8

May 28, 2017, 10:09 pm
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I spent part of an afternoon developing a hardware RSS reader (most of my time was spent on the python side of things). It’s pretty simple and uses an AVR microcontroller connected to a computer via...

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USB AVR programmer

May 29, 2017, 10:29 pm
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I’ve already had a programmer for Atmel’s AVR microcontrollers, but I couldn’t use it in my lab, because my laptop doesn’t have a LPT port. So I decided to make a new programmer with USB connection....

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3-axis Accelerometer Sensor-ADXL335 Interfacing with ATmega32

July 13, 2017, 11:41 pm
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ADXL335 accelerometer sensor is a MEMS (Microelectromechanical systems) sensor which can measure static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting...

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4X4 Keypad based Password with ATmega32 and LCD Display

July 14, 2017, 11:49 pm
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Security is a prime concern in our day-today life. Everyone wants to be as much secured as possible. Keypad based password is one of the many method and the most common and easy one to provide...

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4X4 Keypad based Password with ATmega16 and LED Display

July 15, 2017, 11:59 pm
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Security is a prime concern in our day-today life. Everyone wants to be as much secured as possible. Keypad based password is one of the many method and the most common and easy one to provide...

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4X4 Keypad Interfacing with ATmega32 and LED Display

July 17, 2017, 12:07 am
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Keypads are parts of HMI or Human Machine Interface and play really important role in a small embedded system where human interaction or human input is needed. Matrix keypads are well known for their...

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Analog to Digital Converter of ATmega32 with LED Display

July 18, 2017, 12:35 am
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Microcontrollers are capable of detecting binary signals: is the button pressed or not? These are digital signals. When a microcontroller is powered from five volt, it understands zero volts (0V) as...

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Goldilocks Analogue – Prototyping 3

September 28, 2017, 4:06 am
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Following my initial design article, and the follow up design article, I’ve put quite a lot of thought into how I can make this Goldilocks Analogue device best achieve my stated goals. Pictured is the new 3rd Goldilocks Analogue Prototype. I’m now working on the 4th Goldilocks Analogue Prototype. The PCB layout has been completed, and we’re talking […]

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Scrumtato: Make Daily Stand-Ups Agile Again

September 29, 2017, 1:50 am
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Story The following was originally published in my blog. At Delphi in Gothenburg, where I am currently employed, we create all kinds of cool products for the automotive industry. To organize our development process, we use SCRUM and abide by the Agile principles. Every morning, we have a short meeting where we discuss what our […]

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