Sensor wiring
Reference: power, interface, pins and pitfalls of common sensors
Power
3.3–5 В
Interface
1-wire (digital)
Pins
VCC, DATA (10k pull-up), GND
Poll no faster than 2 s; pull DATA to VCC.
Pitfalls: 5V sensors on 3.3V MCUs need a level shifter; I2C needs 4.7k pull-ups; check polarity before powering.