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A teacher friend asked us for faster build that is less dependent on soldering because they don't have the budget for that kit. So we've developed a "minimum version" of the 2019 classroom logger using pre-made Dupont jumper cables (as we did in 2016) to reduce the build time to about 1 hour. I've also added support to the code base for using the indicator LED as a light sensor, so they can use the logger with their existing curriculum even if they don't add extra sensors. The ability to use the red &blue LEDs as a proxy for PAR measurements may be interest to the farming community. (see: Forest Mimms publications on that for further reference)
This version of the Cave Pearl is probably the best starting point for people building their very first Arduino-based data logger.
A teacher friend asked us for faster build that is less dependent on soldering because they don't have the budget for that kit. So we've developed a "minimum version" of the 2019 classroom logger using pre-made Dupont jumper cables (as we did in 2016) to reduce the build time to about 1 hour. I've also added support to the code base for using the indicator LED as a light sensor, so they can use the logger with their existing curriculum even if they don't add extra sensors. The ability to use the red &blue LEDs as a proxy for PAR measurements may be interest to the farming community. (see: Forest Mimms publications on that for further reference)
This version of the Cave Pearl is probably the best starting point for people building their very first Arduino-based data logger.