Looking for an experienced Arduino programmer to develop system for quantitative detection of methane gas in concentrations ranging from 0 to 250,000 ppm, CO2 in concentrations of 0-75%, and Hydrogen sulfide in concentrations ranging from 0-10000 ppm. I want the ability to detect the gasses, and when the device comes into proximity of a radio frequency identification tag (there could be multiple tags), record environmental gasses at 30-second intervals until approximately 10 minutes after the RFID signal is lost. The recorded values for gasses should be associated with both time/date and the RFID tag identity. These values should be stored on a USB drive as a CSV file that is updated continuously (there could be multiple tags, and system should be capable of sending the csv file via wireless communication to cloud storage. System should be equipped with air pump to continuously circulate ambient air through the device until 10 or 15 minutes after the RFID signal is lost. Local power is available (110v), but preferably would operate using battery power.
February 20, 2018
I am willing to pay higher rates for the most experienced freelancers