- SVGs, Microcontrollers, and Xbees
- 16.4.2009
I brought back and old project this afternoon. I had previously constructed a temperature regulated refrigerator using an Arduino and 5A Omron SSR to toggle the compressor, but had no good way of plotting the results to make sure my refrigeration algorithms were working correctly. The refrigerator was not near a PC, so uploading the live results to a database was out of the question.
However, I recently purchased some XBee modules to play with wireless serial communication, and decided to give them a try with a datalogging application. I picked up an XBee shield for the Arduino and a ...- 2 comments
- High Altitude Weather Ballooning
- 31.3.2009
I just finished up a weather balloon project over the weekend. Here are some pictures of the launch and subsequent recovery.
The goal was to measure atmospheric gravity waves by using direction tubes and thermistors to detect pressure differences between the two openings of the tube. Our apparatus measures the associated temperature fluctuation, and logs ADC readings to a CF card every half second. In order to compensate for balloon rotation, we stuck a HMC6352 digital compass in the payload as well.
Our data logging system was composed centered around a TS-7200 from Technologic Systems. We opted for the add-on ...- no comments
