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Non-contact infrared (IR) thermometers used to ... to the fact that both the display and temperature sensor communicate with the ESP32 over I2C, allowing them to be wired daisy chain style ...
It’s based on a SparkFun ESP32 Thing, a very compact way ... an APDS-9930 proximity sensor, as well as four CNY70 IR proximity sensors on the bottom, used for line-following.
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