Maker Corey Earl has designed a feature-packed industrial management and communication board constructed across the Espressif ESP32-WROOM-32 module: the Taco Rooster.

“I used to be in search of a option to management and talk with a solar-powered automobile weigh scale,” Earl explains of the Taco Rooster’s origins. “The size is designed to work on mains (120V) energy and be principally consistently powered. We had no easy accessibility to mains energy at its location and with the convenience and affordability of photo voltaic that route was determined upon.”

To get the size working, although, requires a selected boot-up sequence in order that the exterior show can hyperlink to the size itself — and because the scale outputs information over an RS232 serial hyperlink, no matter controller was put in place would additionally have to assist that. If that wasn’t sufficient, Earl additionally wanted to watch the cost ranges of 12V batteries linked to the photo voltaic panels — and to have a guide begin button, ought to somebody tip up for weighing and never have a cellphone or different Wi-Fi/Bluetooth succesful gadget handy.

Discovering little off-the-shelf that may show appropriate, Earl designed the Taco Rooster. Choosing an Espressif ESP32-WROOM-32 module for its comparatively excessive pin depend and built-in radio. The ensuing management board consists of each RS232 and RS485 supprt, 4 10A MOSFET outputs with devoted LED indicators, two DRV8870 motor drivers providing 3.6A every or a mixed 7A.

The board additionally options 4 analog inputs with filters, I2C on each a D-sub connector and a header designed to be used with an elective OLED show, two debounced digital inputs, a 3rd digital enter for Dalls One-Wire sensors, and a CH340 USB-UART bridge — plus assist for an enter voltage of 7-24V.

Extra info on the Taco Rooster is offered on Earl’s Hackaday.io web page, whereas the design information and schematics have been revealed on the Open Supply {Hardware} Lab below the reciprocal GNU Normal Public License 3.