Zocalo Coffee Shop

Custom HA Uplink

Zocalo coffee shop migrated to digital registers with a solution from square. While these devices are able to process transactions off-line, some types of transactions need the square registers to be on-line. At the time the coffee shop had only one up-link provided by Comcast. Comcast was providing good service at the time, but with the increased demand for the registers to be on-line they needed higher availability.

Arduino + thermocouple + Perl + MySQL + Linux = EPA Compliance

Sara Ubelhart, Sole proprietor of, Zocalo coffee house roasts from an classic hand built roaster made by the San Franciscan Roaster Company. The roaster comes with , These features provide the data source for the roaster's Artisan deployment. The EPA requirement stated , "". To achieve this an additional thermocouple and current sensor was added to the afterburner.

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