The 2D image of my board design is shown below. The Gnd pin will be labeled ‘-’ or ‘Gnd’. The chip embedded is designed to be scalable and adaptive. Here are the main steps: First, you need to sign up here. However, my decoded backtrace is filled with the message that can be seen below. “The project challenged us and pushed the capabilities of the ESP32 platform to its limits at many points. They are not the prettiest at the moment, but they work surprisingly well and run stable. The sensor is programmed using CircuitPython and periodically sends data to Adafruit IO. I just finished building a CO2 air quality monitor using a TTGO T4 board and a MH-Z19B sensor. ![]()
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