Iowa Scaled Engineering designs, manufactures, and sells many unique and cost effective products intended for model railroad and electronic hobbyists. Explore below for application notes to inspire your designs or browse the store to see all the products we have to offer.

Compost Monitor

One of the original applications I had in mind for MRBus was monitoring a compost pile I build each spring using manure from our horses. In early summer, pumpkins are transplanted into the pile and do remarkably well. In fact, I discovered this by accident one year – some pumpkins one fall were added to a pile of manure and allowed to compost. The following summer, volunteer pumpkins grew and were some of the largest and healthiest looking I had ever been able to grow here in Colorado!

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Temperature Calibration for the MRBW-RTS

Single-point calibration of the RTS node is easy to perform. One method is presented here using the water ice-point and works with both waterproof and non-waterproof temperature sensors. The RTS firmware provides both offset and gain calibration coefficients. For most purposes, a single point offset calibration is probably sufficient. To accurately perform both gain and offset calibration requires more sophisticated VBE equipment and is beyond the scope of this investigation.

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