سنسور دما دیجیتال DS18B20

یک سنسور دیجیتال برای اندازه گیری دما با دقت بالا و قیمت مناسب و راه اندازی ساده که طبق اعلام شرکت سازنده تا 100 متر کابل نیز می توان به آن اضافه کرد.

سنسور دما دیجیتال DS18B20

برای راه اندازی باید از یک مقاومت 4.7 کیلو استفاده کرد که نحوه اتصال آن بسیار ساده و راحت می باشد.

خرید سایر محصولات مشابه:

• سنسور دما DS18B20 ضد آب با کابل

ویژگی های سنسور دما دیجیتال DS18B20:

• ولتاژ کاری: از 3 تا 5.5 ولت دی سی
• جریان مصرفی:4 میلی آمپر
• دقت اندازه گیری:0.5± درجه سانتی گراد
• محدوده قابل اندازه گیری: از منفی 55 تا مثبت 125 درجه سانتی گراد
• خروجی دیتا:دیجیتال
• تعداد بیت ها:9 تا 12 بیت
• نوع ارتباط:1 سیمه
• تعداد پین ها:3 عدد

DS18B20 Temperature Sensor

The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points.

The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor.

In addition, the DS18B20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus.

Thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area.

Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.

Specificatoins of DS18B20 Temperature Sensor:

Input Voltage: 3V ~ 5.5V

Output Type: Digital

Temperature Range: -55°C ~ +125°C (-67°F ~ +257°F)

Accuracy: ±0.5°C (at -10°C ~ +85°C)

Resolution: 9 ~ 12 bits (user-selectable)

Interface: 1 Wire

Pin Number: 3 Pin

Form Factor: Small cylindrical package with three leads (VDD, GND, and data)

Features of DS18B20 Temperature Sensor:

Unique 1-Wire® interface requires only one port pin for communication

Each device has a unique 64-bit serial code stored in an onboard ROM

Multidrop capability simplifies distributed temperature sensing applications

Requires no external components

Converts temperature to 12-bit digital word in 750ms (max.)

User-definable nonvolatile (NV) alarm settings

Usage Tip:

Follow the DS18B20’s datasheet for wiring and communication details. Configure the resolution according to your desired accuracy and

update rate. Calibrate the sensor if precise temperature measurement is required.

Caution:

Ensure that the sensor is properly connected and powered within its specified voltage range. Avoid exposing the sensor to extreme temperatures outside its operating range, as it may lead to inaccurate readings or sensor damage