User guide

midon design
TEMP08 User Guide Version 4.0x Page 4 of 25
2. Introduction
Thank you for your purchase of the TEMP08 1-Wire Serial Interface. The
following instructions will assist you in configuring and operating the product.
TEMP08 is a stand-alone 1-Wire interface providing standard serial commands
to control the Dallas/Maxim 1-Wire bus and the devices used on it. Sensors can
be polled on a regular basis (from 1 to 99 minutes), or manually interrogated.
In a typical application, TEMP08 is connected to a serial port on a PC. Serial
interface software is then used to gather the data received from TEMP08 and
process it. Many users have interfaced TEMP08 into the HomeSeer product,
which can be used to automate lights, HVAC, sprinklers, and other devices,
based on the sensor readings from TEMP08.
The TEMP08 can provide a serial interface for the following 1-Wire devices:
• Multiple DS2438-based Humidity Sensors
• Multiple DS2438 based Barometric Sensors of the Bray-Jennings design
• Multiple DS2438 general purpose sensors for analog voltage input
• Multiple DS2438-based Solar sensors
• Multiple DS18S20, DS18S20-PAR, DS18B20, DS1822, DS1920 temperature sensors as
well as, temperature readings from any DS2438
• Multiple DS2450 voltage sensors
• Multiple DS2423 based rain gauges
• Multiple DS2423 general purpose counters (for use with Lightning sensors and other
types of counter inputs)
• Multiple DS2401 or DS1990 1-Wire serial numbers (only presence will be reported)
• Up to 20 1WIO relay interface modules (available from Midon Design) or equivalent
DS2408 based relay module
• Up to 10 1WIO LED modules (available from Midon Design)
• Up to 20 1WIO Input modules (available from Midon Design) or equivalent DS2408
based input module
• One DS2450 based Weather Station for wind speed and wind direction
For more information on these sensors, please refer to the Midon Design 1-Wire Application
Guide available on our website.
TEMP08 has the following features: