A while ago Farnell sent email to me and offered one (inexpensive) product as a sample in exchange for mentioning it at this blog. I browsed for a while for an interesting part and settled with Microchip MRF24WB0MA/RM WiFi module (Order code 1823142). This module is quite inexpensive and is used in products like WiShield […]
Updating electricity meter to communicate via WLAN Read More »
Building our own digital clock is one of the dreamed project by most of the hobbyist or anyone that want to learn or involve seriously in the embedded system world; the ability to integrate time, day and date to the embedded system is one of the important knowledge that should be known by any embedded
Using Maxim DS1307 Real Time Clock with Atmel AVR Microcontroller Using Atmega32 Read More »
This instructable will document and explain my latest project, a standalone computer system based upon a single chip (IC); the ATmega 1284P. The 1284P is responsible for all aspects of the system, including running the BASIC interpreter, generation RCA video signals and reading keyboard input. This computer system runs TinyBASIC just like my Arduino BASIC
Single Chip Computer: Easy to Produce AVR BASIC Co Read More »
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
Doppler Radar for Collision Avoidance Read More »
Introduction “The sound and experience of drums… Any time, anywhere, with any object.” -Project Soundbyte It’s Friday night and you’re hanging with your friends at home. There are no parties tonight and you have seen everything on Netflix already – you’re bored out of your minds. One of your friends pulls out his portable roll
Drums Anywhere: solution to making a great drum beat Using 3D-printed boxes Read More »
Introduction “An ultrasonic range-finding hat with variable haptic feedback for obstacle detection.” -Project Sound Bite For our ECE 4760 final project, we designed and implemented an ultrasonic range-finding hat that uses haptic feedback to alert its wearer about obstacles in his or her path. The hat is equipped with an ultrasonic transmitter/receiver circuit, which is
Ultrasonic range-finder with haptic feedback Read More »
Rather than using an out-of-the-box capacitive touch solution for my projects, I thought I’d attempt making my own little breakout board. The idea is to use a sensor capable of triggering normal digital input pins using touch. This post covers the selected touch sensor IC, the circuit used, getting a custom PCB made and how
Capacitive Touch with Atmel’s AT42QT1070 Touch Sensor IC Read More »
This is the second part of my USB tutorial for ATtiny2313 and V-USB library. In the first part we learned how to get 3.3V from USB to power our circuits. In this part, we will expand our setup with following parts: Larger breadboard and additional jumper wires ATtiny2313 12 MHz crystal oscillator Two 27 pF
AVR ATtiny USB Tutorial Part 2 Read More »
audiogetradix4 is a simple library you can use to interface with a ac audio input. It reads data from an ADC pin and returns the RMS value of the input using DFT Radix-4 algorithm. The discrete Fourier transform (DFT) converts a finite list of equally-spaced samples of a function into the list of coefficients of
AVR Atmega audio input RMA using FFT Radix-4 Read More »
The TSL235 is a light-to-frequency converter. This library reads TSL235 output frequency and convert it to irradiance, and then to illuminance. Irradiance is the power of electromagnetic radiation per unit area (radiative flux) incident on a surface. It’s expressed in watt per square metre, the symbol is Ee. In photometry, illuminance is the total luminous
Irradiance/Illuminance Meter using TLR235R sensor with AVR Atmega Read More »
