Scientific, embedded, biomedical, electronics contents.

ECE4760 Spring 2012 projects are here

admin — Tue, 08 May 2012 21:41:11 +0000

Some time ago we noticed that Cornel University ECE4760 project list started to build up. It seems that the project list is finished with 30 great projects built around AVR microcontrollers. Students as always prove to be creative and inspiring. … Continue reading →

DNA Computer Chips On The Way?

admin — Sun, 18 Mar 2012 06:58:03 +0000

The future of life sciences appears to be even more reliant on computing than we had supposed, and vice versa. From computer technology fields to Huntingdon Life Sciences careers, biological systems are being studied more extensively than ever with the … Continue reading →

AVR GCC LCD library allows connecting pins in any order

admin — Sat, 17 Dec 2011 09:52:58 +0000

Probably some of you are struggling in finding a proper LCD driver that would work on any circuit. Just wanted to point out that I found some time to improve my current LCD library so it would support a mixed … Continue reading →

Modeling of analog part for DDS3 signal generator

admin — Sun, 11 Dec 2011 23:06:04 +0000

When building AVR DDS2 signal generator there were lots of discussions about signal conditioning in analog part of device. First argument was that LM358 wasn’t the best choice for this purpose. Another one pointed to sine wave that weren’t smooth … Continue reading →

FreeRTOS on STM32

admin — Mon, 05 Dec 2011 18:11:06 +0000

High density line of STM32 microcontrollers have quite a bunch on features that can be used in user programs. The more features you add to source the more complicated program becomes and this way it starts to be difficult to … Continue reading →

Driving Graphical LCD with STM32F103ZET6

admin — Sat, 19 Nov 2011 20:17:15 +0000

STM32F103ZET6 board comes with 3.2 inch graphical LCD which features an ILI9320 controller. Equipped LCD is capable of displaying 252144 colors when driven in 18-bit mode. We are gonna drive it in 16-bit mode, so we are limiting it to … Continue reading →

Connecting STM32 USART to standard I/O streams in GCC

admin — Fri, 18 Nov 2011 12:09:07 +0000

In many situations when working with STM32 microcontrollers you will want to output text strings. There is no need to write special functions that output specially formatted strings as it is hard to keep up with various cases. Simply speaking … Continue reading →

Interrupt based button read on STM32F103ZET6 board

admin — Mon, 14 Nov 2011 00:34:00 +0000

In previous example we implemented a simple demo program that reads buttons by constantly checking their status in main program loop. Obviously this isn’t efficient and convenient way to do that. Imagine your program has to do lots of tasks … Continue reading →

Implementing buttons on STM32F103ZET6

admin — Mon, 07 Nov 2011 21:39:09 +0000

Last time we have made a good starting point with setting up a project template for STM32F103ZET6 development board using GNU tools. Using same project template we can move forward and start programing other elements. This time a quick note … Continue reading →

Driving LEDs with LPC2148 microcontroller

admin — Sat, 05 Nov 2011 17:00:05 +0000

Couple years ago I have purchased LPC2148 development board called BlueBoard form ngxtexhnologes. It is quite powerful board with ATM7TDMI series microcontroller which is considered an old guy comparing to Cortex ones. But still these are widely used and are … Continue reading →