Waterproof 1-Wire DS18B20 Digital Temperature Sensor
Pre-wired, heat-shrink waterproofed DS18B20 1-Wire temperature sensor on a 1 m cable, rated to 125°C but with PVC jacketing that limits continuous use to 100°C. Multiple sensors can share one data line. Needs a 4.7 kΩ pull-up and a 1-Wire library.
Pinout
- Red wireVCC
DS18B20 waterproof sensor supply lead.
Type · PowerVoltage · 3-5V wiring stated by Adafruit; technical specs state usable with 3.0V to 5.5V power/data. - Blue or Black wireGND
DS18B20 waterproof sensor ground lead.
Type · Ground - Yellow or White wireData
1-Wire digital data lead for the DS18B20 waterproof sensor.
Type · SignalVoltage · 1-Wire data usable with 3.0V to 5.5V power/data per Adafruit product page. - Copper shield
Shield conductor present on four-wire versions, soldered to the wire shielding per Adafruit product page.
Type · Unknown
| Pin | Type | Function | Voltage |
|---|---|---|---|
| Red wireVCC | Power | DS18B20 waterproof sensor supply lead. | 3-5V wiring stated by Adafruit; technical specs state usable with 3.0V to 5.5V power/data. |
| Blue or Black wireGND | Ground | DS18B20 waterproof sensor ground lead. | |
| Yellow or White wireData | Signal | 1-Wire digital data lead for the DS18B20 waterproof sensor. | 1-Wire data usable with 3.0V to 5.5V power/data per Adafruit product page. |
| Copper shield | Unknown | Shield conductor present on four-wire versions, soldered to the wire shielding per Adafruit product page. |
Pin details
4 connections- Red wireVCC
DS18B20 waterproof sensor supply lead.
PowerVoltage · 3-5V wiring stated by Adafruit; technical specs state usable with 3.0V to 5.5V power/data. - Blue or Black wireGND
DS18B20 waterproof sensor ground lead.
Ground - Yellow or White wireData
1-Wire digital data lead for the DS18B20 waterproof sensor.
SignalVoltage · 1-Wire data usable with 3.0V to 5.5V power/data per Adafruit product page. - Copper shield
Shield conductor present on four-wire versions, soldered to the wire shielding per Adafruit product page.
Unknown
Start wiring
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Verify supply voltage and logic levels before powering up.
Module pins: Red wire / VCC, Blue or Black wire / GND, Yellow or White wire / Data. Schematik maps them to your board in the app.
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