Monthly Archives: July 2018

Successful readings on the HyperRail!

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Author: Lars Larson

Great progress today – we got CO2, lux, temp, and humidity to transmit to the hub while the HyperRail moved the sensor package in specified increments. Video posted below.

The HyperRail GUI now allows for specification of the travel length, speed, and distance between stops. When the sensors get to each new location, the hub tells which sensors to take readings. Once the readings are complete and the hub receives the data, it moves the package down the rail to the next sensing location.

Next, we’ll add a box to the GUI that allows the user to select which sensors to take readings from, without having to hard-code it. Also, the user will be able to select the time interval between runs down the rail and make it automatically loop throughout the day.

Bi-directional communication up and running

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Author: Lars Larson

Crossed a major hurdle yesterday – the sensor package now communicates back and forth with the HyperRail hub.

The sensors wait for a signal from the hub, which sends an array of zeros and ones telling each sensor whether or not to take a reading. Once the readings are complete, the data is saved to the Adalogger SD card, then the values are sent back to the hub.

Next, we’ll work on the timing at the hub to move the sensors a specified distance, wait for data, then move on. After that, I’ll work on a live stream to the internet (Adafruit.io or Google sheets) from the hub.

Cheers,

Lars

A much smaller footprint for the Digital Greenhouse

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Author: Lars Larson

I moved the sensor package to a 1/2 sized Perma-Proto board today.  It’s now mobile and ready to start interfacing with the HyperRail. See the new setup pictured below.

The new setup is logging data successfully and nRF is working.

The next step is to create a conveyance and data transmission protocol to fully integrate with the HyperRail.

Lars


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