Archive for March, 2015

Configure DS3234 RTC in OSBSS dataloggers

The DS3234 RTC breakout from SparkFun does not include a backup battery (CR1225). After inserting the battery, the RTC’s oscillator initializes and starts keeping time from 1/1/2000 00:00:00. The RTC’s time needs to be manually setup once. If you’ve already assembled an OSBSS datalogger, upload the following code to configure the current time in the RTC:

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Data from OSBSS CO2 sensor

Months ago the initial prototype OSBSS CO2 sensor was designed and made in BERG lab, so as the next step we tried to verify the sensor’s performance. Therefore, as you can see in the following picture we performed a co-location test with OSBSS CO2 sensor and two off-the-shelf CO2 sensors. SBA-5 CO2 Gas Analyzer and Telaire 7001 CO2 Sensor were used for this reason. In order to record data, the off-the-shelf sensors combined with the Onset HOBO Data loggers. As the first attempt we launched all sensors with one minute intervals and placed them close to each other in the BERG lab for approximately 21 hours.


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