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Basic User’s Experiment Notes

The “Basic User’s Experiment Note” is based on the popular 8-bit Atmel AVR ATmega328P microcontroller using AVRJazz 28PIN development board. This e-book covering most of the Atmel AVR ATmega328P microcontroller important features. With almost 140 pages, this e-book is organized similar to many of the ermicroblog’s project pages where it used many important information inside the Atmel AVR ATmega328P microco ...

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Cellular Data Logger

Story I have been collecting data from Raleigh's trails and parks for the last couple years.  My primary platform has been a custom Arduino board I developed for low-cost (hey, these things may get damaged or stolen) and long battery life.  I wanted a connected sensor to provide current data and, after looking at various technologies, I have settled on cellular as the most convenient.  This sensor uses an o ...

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Physical computing with ATtiny

Story I have a nice "carranca" (or wall mask) from Chile that stands in my corridor. It's a very beautiful decorative mask that I liked from the very first moment I saw it at the shop. Few weeks ago I wondered if I could bring it to life by adding a motion sensor and some lights in it, since it has three convenient holes (two for the eyes and one for the mouth) and enough space on the back for housing wires ...

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Make your own remote temperature/humidity sensor

Hardware components: Atmel atmega 328p-pu × 1 ControlEverything.com SI7020-A20 I²C Humidity and Temperature Sensor ±4%RH ±.4°C × 1 433 MHz transmitter / Receiver kit × 1 AMS1117-ADJ voltage regulator × 1 Capacitor 100 µF × 1 Capacitor 100 nF × 1 Resistor 1k ohm × 1 Resistor 10k ohm × 1 LED (generic) optional × 2 Resistor 221 ohm optional × 2 UDOO 2AA Battery Holder for RTC × 1 Software apps and online servi ...

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AVR Microcontroller based Temperature Monitoring and Control System

AVR Microcontroller based Temperature Controller, it uses LM35 Temperature Sensor for measurement of temperature and 16x2 LCD is used to display temperature set point, Heater Status and current temperature, It controls temperature by turning on and off of the heater using relay. This project is very useful for controlling of temperature, It can be used for soldering station to make it automatic temperature ...

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3-axis Accelerometer Sensor-ADXL335 Interfacing with ATmega32

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 from motion, shock, or vibration. The accelerometer sensor is used in mobile devices, gaming systems, disk drive protection, image stabilization, sports devices, health devices and etc. The analog outputs are r ...

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Doppler Radar for Collision Avoidance

Introduction My project uses Doppler radar sensors in order to provide the user with movement, speed, and distance information of their environment. An array of Doppler radar sensors are placed on the user�s head and vibration motors are placed on the user�s chest, neck, back, and/or arms in order to provide input to the user without impeding any of their other senses. When something moves within about 25 f ...

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