-
Recent Posts
Recent Comments
Archives
- December 2021
- January 2019
- April 2018
- March 2018
- June 2016
- April 2016
- October 2015
- June 2015
- March 2015
- December 2014
- August 2014
- July 2014
- June 2014
- May 2014
- April 2014
- March 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- October 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- July 2011
Categories
- ADE7763
- AmScope
- Arduino
- ARM
- AS3935
- AVC
- Components
- Desk Clock
- Die Filer
- FIRST LEGO League
- Furnace Monitor
- Home Energy Monitor
- IR Beacon
- LD-AIR
- Lightning detector
- MCP42010
- MSP430
- Personal
- PIC
- Pololu 9DOF IMU
- Processors
- Product reviews
- Projects
- Python
- Rigol DS1102D
- Robotic DVD burner
- RS232 Shifter
- Sailboat Race Timer
- Software
- Sugru
- SUNDAR
- Teensy
- uBlock LEA-6H
- Uncategorized
- Vectronix DMC
- XBee
Meta
Category Archives: AVC
Adventures with an Atmel SAM7S256
The Arduino’s I have been playing with are nice and fun, but they do not have the horsepower that I would like for my AVC robot. At work I have been using ARM processors and really like them. They are … Continue reading
SUNDAR getting close to field testing
I have a nearly complete prototype of the sensor at this point. The scanner will find and then track the sun as the car turns. If it losses the sun, it will open up its scan window to get it … Continue reading
A hope for the SUNDAR
Last night I started end to end testing of my solar compass. The pre-amp, amplifier, AGC, and digitizer circuits all seem to work. The code for computing Azimuth also seems to work in a lab environment. So far so good. … Continue reading
SUNDAR Update
After etching the pre-amp board and populating it with parts, my quick test showed that the device did not work. No smoke, but no amplification either. And then some personal issues came up that I had to take care of. … Continue reading
uBlock LEA-6H GPS arrived!
I placed an order for a uBlock LEA-6H GPS from Hobby King some time ago only to find out it was back ordered. I got my email on a list to let me know when they came in. A few … Continue reading
Posted in AVC, uBlock LEA-6H
2 Comments
SUNDAR update
Today I replaced the opamps with the new ones I just got from Analog Devices. These were SMT parts and I had to solder them to DIP adapters. But they share the same pin outs as a DIP, so the … Continue reading
All is not lost with GPS
So after looking at the GPS data I collected, I figured I would try another data collection in 2D mode with the know altitude set. That would allow me to use one more satellite for horizontal position. I collected 12 … Continue reading
GPS error
Towards my goal of entering the AVC competition in 2014, I have been evaluating GPS units. The current model I am looking at is a u-Blox LEA-6H with a patch antenna. The first test I tried was to hold the … Continue reading
Posted in AVC, Projects, SUNDAR, Uncategorized
Comments Off on GPS error
Opamp trouble
Been working on the two stage opamp for my Sundar. The first stage takes the current from the photodiode and turns it into a voltage with a certain amount of gain. The second stage applies a second gain as well … Continue reading
Posted in AVC, Projects, SUNDAR
2 Comments
SUNDAR update
Been working on my SUNDAR in what little free time I have these days. Last night my Digikey order came in and I was able to get the dual channel digital potentiometer working. This will be used for a software … Continue reading
Posted in AVC, Lightning detector, MCP42010, SUNDAR
Comments Off on SUNDAR update