Introduction

一个MT-DS模块的单独图片

MT-DS is a temperature processing module designed for Dallas Temperature Sensors. This module works as a bridge between Dragino MS12 and Dallas/Maxim Onewire temperature sensors. it read temperature from Dallas Temp Sensors and send it to Dragino via UART port. Dragino MS12 will forward the temp info to remote server.

Features

• Support devices:
  • DS18B20
  • DS1822
  • DS1820
• Use ATmega168-20au MCU.
• Show Sensor ID + Temp pairs as result.
• Support 8 OneWire buses (with pull up 4.7K Ohm resister) and up to 80 Dallas Temp Sensors in a single Dragino.
• Provide 5V power and GND to Dallas Temp Sensors.
• Auto-detect new added sensors or removed sensors.
• Remote upgrade via internet.
• Compatible with Arduino IDE for easy debug.
• Completely open source in both software and hardware, free to modify and change.

How to use this module

1-Wire protocol and Dallas Temperature Sensors

1-Wire bus system is designed by Dallas Semiconductor Corp. In the 1-Wire protocol. It uses a single signal line to do data transmit, receive and provide power (parasitic) to 1-Wire devices. 1-wire protocol makes it very easy for MCU to communicate with 1-wire devices.

Dalls DS18B20 is a typical 1-wire temperature sensors. It connects to MT-DS via 1-wire bus. each DS18B20 has a unique ID and multiple sensors

Configuration

Version Info

Hardware / Software Source

http://svn.dragino.com/examples/MT-DS

Ordering Info

Feedback and Suggestions

Feel free to send comments or suggestion to Dragino team: info@dragino.com. We will reply you as soon as possible.

Reference Link

About Onewire protocol used in Arduino : http://www.arduino.cc/playground/Learning/OneWire

use Arduino library designed for Dallas Onewire temperature sensor: http://www.arduino.cc/playground/Learning/OneWire