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Jey Spulka, creator of the TeHyBug household of Wi-Fi-connected environmental trackers, has launched an ultra-compact growth board primarily based on Espressif’s ESP8285 module and that includes an audio-style four-pin jack for connectivity to exterior {hardware}: the GumBoard.
“I wanted a small board for easy Wi-Fi tasks with buttons,” Spulka explains of the board’s origins, “the place I can join a show and sensors and navigate by means of the show menu by means of buttons. [The GumBoard is] a small hacking growth board with 4 buttons, primarily based on ESP8285 Module, an audio jack for simple connecting TeHybug Sensors and shows, and an RGB indication LED.”
The GumBoard is about as small as you possibly can count on an ESP8285-based dev board to get, but consists of some helpful options. (📷: Jey Spulka)
The tiny dev board features a micro-USB port for energy and programming, is supported within the Arduino IDE and by another toolchain able to flashing an ESP8285, and affords on-board Wi-Fi connectivity with an optionally available Hirose U.FL connector for an exterior antenna ought to the on-board antenna show insufficient for a given undertaking.
The board would not, nonetheless, embody the standard general-purpose enter/output (GPIO) pins you’d see on rival designs. As an alternative, to maintain the dimensions down, exterior {hardware} is related utilizing a 3.5mm (1/8″) four-pin audio-style jack — providing compatibility with Spulka’s TeHyBug sensor boards and add-ons.
The board features a 1/8″ jack for GPIO entry on the rear, plus 4 on-board buttons. (📷: Jey Spulka)
The board is now up on the market on the TeHyBug Tindie retailer beginning at $19 for the usual mannequin with on-board antenna, whereas a 0.96″ OLED show with four-pin connector could be added for $6 and an AHT10 and BMP280 temperature, humidity, and stress environmental sensor could be added for $5.
Extra info is offered on the undertaking’s GitHub repository.
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