Wiring

Connect your DS18B20 sensor to a digital input on your development board. You'll also need to add the 4.7 KΩ pull-up resistor to the signal line to ensure the board can read the sensor. Here's an example of wiring a standalone DS18B20 to a Feather ESP32 V2 board:

• Left-most leg of the sensor (with the flat part facing you) to board ground.
• Middle leg of the sensor to board D14.
• Right-most leg of the sensor to board 3.3V.
• 4.7 KΩ resistor connected to both the middle leg (data) and right-most leg (3.3V).

Or if you're using a waterproof or high-temperature probe, here's an example of the wiring to a Feather ESP32 V2 board:

• Black wire (or solid white on high-temperature probe) to board ground.
• Orange wire (or white with a blue stripe on high-temperature probe) to board D14.
• Red wire (or white with an orange stripe on high-temperature probe) to board 3.3V.
• 4.7KΩ resistor connected to both the data line on one side (D14) and the power line (3.3V) on the other side