Based on the Arduino Pro Micro, this hand-wired pad is unique in that a single press of any of its 16 keys can virtually “type” out multiple lines of text. In this case, it’s a capability ...

At close: April 11 at 4:01:03 PM EDT ...

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Measures temperature and humidity using a GXHT30 and displays this information on an SSD1306 OLED display. Offers a HTTP endpoint to read values as JSON, also outputs values on serial.