Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

LED icicle could decorate your Christmas

LED icicle is an ornament made of ATmega8515 microcontroller and 26 blue LEDs. All LEDs are connected to separate I/O pins. Eight of them are driven by microcontroller while other 18 through NPN transistors. Microcontroller simply drives each LED with pseudo-random brightness level that gradually changes with different speed. This give effect of iridescent shine. LEDs are housed in fur-tree toys – plastic icicle and half of plastic ball as stand. Continue reading

The Portable Color TFT LCD Controller Will Spice Up Your Life!

You’ve searched all over the places to find the genuine color TFT LCD controller? Honestly, you’re mostly getting nothing from the searching, as most of the affordable and small color LCDs are being controlled by particular chips, where these chips didn’t available to the public at all! Yeah, you must be very frustrated when you found out the truth, isn’t it? Well, there’s always some good solutions for any problem. Since the stuff you’re looking around doesn’t available on the market, then it’s time to build your very own color TFT LCD controller. For your information, the color TFT LCD controller that you’re going to build here is different from the ordinary, where it uses two AVR microcontrollers to generate the signals needed to control a color TFT LCD. For the display, a 160×240 dot Sony ACX705AKM will be the perfect choice. By the way, an ATMega8515 microcontroller is being used in this project, due to its efficiency in collecting the color pixel data from static RAM and controls the LCD by generating digital CRT video signals! Beside that, an… Continue reading

Interfacing Atmega8515L to RF-24G wireless module

If you are considering wireless design you may consider of using RF-24G wireless module which works at 2.4GHz frequency. With this module your application may reach 1Mbps speed and may provide up to 250 data stream channels. You may check the abilities in datasheet. So there is simple project showing how to run these modules with microcontroller. Simple Circuit which interfaces module to Atmega8515 and receives data from USART terminal which is immediately transmitted. After transmission module enters receive mode These modules are powered with 3.3V so be sure not to connect it to 5V supply as you may damage it. For some of you this example may serve as a starting point to wireless. Download complete Project files(155kB) . Continue reading