mbed Application Board

The mbed boards are a series of ARM microcontroller development boards designed for rapid prototyping and this is breakout makes it easy to get up and running with your mbed LPC1768 module. The new application board has been designed to enable the maximum number of potential experiments and projects, with the minimum footprint. And this…

WiFly Module RN-XV

I just see this module on spark fun. The concept is replace a Xbee network with wifi solution.I have many equipment using Xbee network and I want to take control by smartphone. So, option is Bluetooth or wifi. But Bluetooth is not a wise choose for robot/autonomous. Many limitation to control, range and need more equipment…

DJI Naza-H 1.04 test flight. (Fixed right drift)

I can confirmed about this fix. It’s solved my Atti mode right drift issue. It’s cleaver to have Atti trim function. As picture below, you’ll allow to trim on both Aile and Elev. But please note. After do some trial and error, the trim value depend on your battery condition. If you not use governor,…

APM 2.5 ready to flight again.

Long time ago when I got APM2.5. I found it behavior is wired. Sometime the horizontal line is spin. First I think it came from some of my quad component or firmware. So I leave it on a table. Last month. I decided to take a look and find a way to fix this. I…

DJI Naza-H firmware 1.04 released

After a community feedback to DJI team about right drift when fly Naza-H in Attitude Hold mode. They promised to release a fix. And now it out. What’s new? Atti. Trim function, which allows user to trim heli to make it more stable and less drifting in Atti. Mode in the assistant software. Sound good?…

Raspberry PI as A2DP Bluetooth Speaker

I got this from other website. This guide is really good and complete for setup Raspberry PI as bluetooth speaker. But I modify something to match with my testing. Raspbian Wheezy Installation Guide From a fresh installation of Wheezy (2012-12-16-wheezy-raspbian.img), run the following as the default user pi: pi@raspberrypi ~ $ sudo apt-get install bluez pulseaudio-module-bluetooth…

Raspberry PI – How to use I2C

I tried to check my Raspberry PI board with I2C connection. I have I2C DS1307 (Real Time Clock module) on hand. And after check the voltage on SDA/SDL pin out is 3.3v, safe for use with Raspberry PI board. So, lets start with I2C. Install i2c-tools pi@raspberrypi ~ $ sudo apt-get install i2c-tools remove i2c-bcm2708 from…

Raspberry PI – Setup apt-get to use proxy

My network is bad today. I try to install some bluetooth utility from apt-get. But it take so long to complete only one dependency file. It may take an hour or more.. So, to use proxy with apt-get. Please follow below step 1) Change to apt configuration directory. pi@raspberrypi ~ $ cd /etc/apt/apt.conf.d 2) Create…

Raspberry PI – Unboxing

Welcome new on-board mini size computer. The Raspberry Pi is a credit-card sized computer that plugs into your TV and a keyboard. It’s a capable little PC which can be used for many of the things that your desktop PC does, like spreadsheets, word-processing and games. It also plays high-definition video. I also brought a acrylic…