I recently bought the “Graphic LCD Serial Backpack” from Sparkfun. When reading the comments for the product. I discovered that a user named “SummoningDark”, had made a new improved firmware. A lot of people asked Sparkfun to change the official firmware with the new one, so i decided to check it out. The problem were that I do not own a programmer, so at first I thought that I had to buy one. But after some googling I found out that the Arduino could actually be used as an In System Programmer (ISP).
After a lot of work I finally got it working and it has really improved the perfomance of the screen. The speed is much higher (SummoningDark says 10 times) and there are no more bugs (with the old firmware the screen would suddenly write the text or a line a odd place).
I will now try to explain as best as I can, how to upload the new firmware.
NB: You can also use this guide if you need a different bootloader or another hex file on any AVR. This is just meant as an example. Read more…
I recently made a NXT motor shield for my arduino. It can control two NXT motors and also read the onboard encoders. In true Arduino spirit I decided to share it with the rest of the community. But first i will talk about how everything works, and then show the finished shield including a short video demonstration. Read more…
I posted this video guide on Youtube a couple of days ago, though I wanted to announce it in here too.
In this video tutorial I guide you thru how to make a counter application for the Basys2 board, which is an FPGA board from Digilent to those who are unfamiliar with it.
I will show you the required steps of setting up a project in Xilinx ISE, writing the VHDL code for the counter application, writing the pin constraints file (.UCF) and finally generating the bit-file for the Basys2 board.
This video tutorial was actually requested by a reader of the blog, so with this being my first video tutorial, I would like to show you that comments and requests ARE HEARD! 🙂
EDIT:
The Xilinx ISE project files for the tutorial can be downloaded here: Basys2_CounterApp.zip
Hello again everybody.
Today I agreed with my fellow classmate and team member, Kristian Lauszus, to post his guide to Kalman filtering, using the Arduino with a Gyro and Accelerometer, on my blog. So here it is, and I think it will be usefull for your guys.
Questions can be asked in the Arduino forum where the Guide was originally posted: http://arduino.cc/forum/index.php?topic=58048.0
I recently bought this analog 6DOF (six degrees of freedom) IMU board (http://www.sparkfun.com/products/10010) from watterott.com. It uses three gyros and three accelerometers to calculate angles in three dimensions.
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