The instruction manual for each of the MANY munchkin series of card games always includes a phrase like “you will need a 10 sided die for each player or some other device to keep score.” 10 sided dice are not hard to find in my house, but I took this as a challenge to make […]
Using max7219 microcontroller Build an electronic score keeper/storage box Read More »
Dice are fun. Polyhedral dice used in D & D are even more fun, particularly in big handfuls of different sizes. But a handful isn’t always practical. Ever since I saw the dragon bone electronic die wand advertised in the back pages of Dragon magazine when I was a kid, I wanted an electronic device
Using AtTiny2313 microcontroller Build an electronic polyhedral die Read More »
Instructables author extraordinaire Randofo created a great programming shield to use your Arduino to program 8 pin ATTINY processors. He was even generous enough to give 50 copies of it out to people who authored instructables using AVR processors. It works great on brand new ATTINYs and any chip that is programmed to use it’s Internal clock.
Using the 8Pin ATTINY programming shield with an external clock Read More »
Update May 4 2012: I am still working very hard on version 3 of Picopter. The new version’s hardware is already done. There are new 3D printed motor holders. I’ve done some measurements with regards to mass and radio spectrum. I’ve posted stuff to http://www.frank-zhao.com/picopter_forum/index.php including the new design files, so take a look. Update Feb
Picopter using Microcontroller ATmega128RFA1 Read More »
Here is my project on interfacing of SD Card (microSD). microSD cards are available very cheap nowadays, a great option for having a huge memory in any embedded system project. It is compatible with SPI bus, so the interfacing is easy. SD card adapters are also easily available in market, one can easily make a
SD/SDHC Card Interfacing with ATmega8 /32 (FAT32 implementation) Read More »
This post presents a way for testing and learning the FAT32 system on microSD/ SDHC cards without building the hardware with microcontroller, thanks to Henry Yiu. This project uses the FAT32 library available in my previous post, but does away with the microcontroller part. So, you can use this code with a PC and USB
microSD FAT32 testing using Visual C++ Read More »
This project is used to measure the distance using ultrasonic sensors. The ultrasonic signal passes through the atmosphere to a barrier, which we want to measure the distance. Part of this signal is reflected and travels back to the receiver. The time delay between sending and receiving signals are then determined by distance barriers. The
Ultrasonic range finder using ATMega8515 Read More »
I am presenting one application with the Nokia 3310 LCD: Designing a thermometer using DS1621 temperature sensor IC. DS1621 is 8-pin sensor from Maxim, with temp range of -55 to +125 degree C, which can be interfaced with microcontroller over two-wire serial i2c bus. It has operating voltage range from 2.7 to 5.5v. I’m operating
Thermometer using DS1621 and Nokia 3310 LCD interfaced with ATmega8 Read More »
16×2 LCDs are most commonly used display units in microcontroller based projects. I got much information about LCD, LCD commands, LCD initialization etc from the below link and I hope, it will be very much helpful for beginners. For more Detail: 4 bit interfacing of a 16X2 LCD display to PIC16F877A, Atmega16/32 & MSP430
4 bit interfacing of a 16X2 LCD display to PIC16F877A, Atmega16/32 & MSP430 Read More »
Introduction: (don’t skip to read the note below) I recently purchased few AVR microcontrollers. I don’t know much about AVR since I am using it for first time. Any way, I have some experience on working with PIC and MSP430. To program AVR using USB, I came to know that USBASP is the best and
My own AVR ISP programmer using PIC16f877a and python! Read More »
