TEMP08 Instructions
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Introduction  Description Schematic Instructions  Software Vintages  Differences with TEMP05  FAQ  HomeSeer Setup References Ordering Information Download the Instruction Manual Here


Table of Commands available for TEMP08 - V2.24 and higher

Commands and parameters are not case-sensitive



DEL Delete a sensor that was previously installed via the INI command DEL<sensorid>


Display serial numbers of all configured 1-Wire devices



Display and change specific EEPROM memory locations

EEP <start location>


Erase the EEPROM

ETI Enable Time display DTI <on|off>
EWN Enable Wind display DWN <on|off>


Display a list of available commands



Search for a list of available 1-Wire sensors.

INP Display the status of bits 4-7 of the first connected DS2408 (See 1WIO sensor for details) INP
LED Actuate a LED on 1WIO or equivalent sensor LED <LED number> <on|off>

where <LED number> = 1 to 80 or A for All


Display and change specific memory locations

MEM <start location>
NOR Set North for a 1-Wire Weather Station Wind Direction Sensor (DS2450 type only) NOR


Actuate a specific relay

RLY <relay number> <on|off>

where <relay number> = 1 to 80 or A for All

RST Reset both DS2423 counters RST<sensorid>
SCK Set Clock

SCK dd,hh,mm,ss

dd = 1 to 7

hh = 0 to 23

mm = 0 to 59

ss = 0 to 59


Configure all system parameters

SID Show the Serial Number ID for the 1-Wire Devices SID {on|off}
SPT Set the polling interval

SPT xx

xx can be from 00 to 99

STD Set Temperature Display STD {F|C}
TIM Display Time from Real Time Clock TIM


Display readings from all connected 1-Wire devices in either verbose (includes serial numbers) or non-verbose manner

TYP Select the type of DS2408, DS2438 or DS2423 device TYP<sensorid>


Displays the current version of the software loaded

WDR Wind Direction Reverse (in case your Wind Direction PCB is installed upside down, or in case you want to show the FROM direction instead of the TO direction) WDR {on|off}
ZZZ Performs a soft reset of TEMP08 ZZZ

Using the SET Command

The SET command has multiple parameters.

Update Interval determines the time between sensor readings.  Set to 0 to stop polling.  Enter the time in decimal minutes.

F or C Display determines how temperature readings are displayed.  Enter F for Fahrenheit or C for Celsius.

Serial # Display - set to Yes if you want TEMP08 to display the 1-wire ID of all sensors.

Wind Dirn Reverse - set normally to N.  Set this to Y if you accidentally installed the wind direction PCB upside down in your weather station OR if you want to display wind direction as the FROM direction instead of the TO direction.

Set Clock - input the current day (Sunday = 01, Saturday = 07), hour, minute and second.  Hours are expressed in 24 hour (military) format only.

The DIS Display Output

Sample DIS Output

01 6412340000567810 DS1820 OK

02 5587650000432122 DS1822 OK

03 3355540000447728 DS18B2 OK

04 8811220000334410 DS1820 OK

05 1288770000665526 DS2438 OK H

06 2133440000556626 DS2438 OK B

07 1299880000776626 DS2438 OK V

08 AAFEDC0000BA1226 DS2438 OK H

09 1AABCD0000EF011D DS2423 OK W

10 016543000021AB1D DS2423 OK R

11 541A2B00003C4D1D DS2423 OK L



Update interval = 02 minutes

Temp display = F

Serial # display = On

Wind dirn reverse = Off

DS2438 Temp Display = On

Regular Time Display = On

Display Wind = On

DIS output explanations

Sensor numbers do not necessarily match up with the output from the regular sensor output readings.  This is intentional.  The sensor numbers in the DIS output are the memory locator and are used by numerous commands (the <sensorid> parameter shown in the instruction set).  The sensor numbers in the scan output are sequential numbers for each type of sensor.

An OK will be displayed following the sensor type to indicate that the Cyclic Redundancy Counter (CRC) checksum of the sensor's serial number is good.  If the serial number has a bad CRC, an NG will be displayed.  The checksum is validated during the output of the sensor display.

Letters following the DS2423 and DS2438 indicate the TYPe of sensor equipped.  This is a manual input and will be set following first discovery of the sensor via the INI command, and also following a power-up of the TEMP08 for the DS2423 sensors that do not have built-in battery backup (DS2438 sensors of any type will retain their TYPe setting through a power down).  The letters designate the sensor type per the following table.

Sensor Types



OW Device


Barometric Sensor   



Counter Sensor   



Humidity Sensor   


I Input Sensor (4 bits) DS2408
L Output Sensor (8 bits/LEDs) DS2408
O Output Sensor (4 bits/relays) DS2408


Rain Sensor   


T Temperature only from DS2438 DS2438


Voltage Sensor   



Wind Speed Sensor   


Following a display of the sensors installed, the output of the DIS display then shows the TEMP08 settings that you entered via the SET  and other commands.

The TMP Output Display

SUN 16:52:46
Reading Sensors...
Humidity #01[DC0000002B274726]=58%
Voltage #01[520000002B25A826]=00.12V 05.05V
Voltage #02[020000002B2CB326]=03.98V 05.03V
Lightning #01[D4000000045C621D]=00020 24592
1WIO Status = On,On,On,On
Temp #01[4C00080031220C10]=70.80F
Temp #02[10000800312D2B10]=79.80F
Temp #03[520000002B25A826]=76.21F
Temp #04[020000002B2CB326]=72.77F
Temp #05[DC0000002B274726]=76.21F

The example above shows a typical output from the poll cycle.  The day and time are displayed followed by the results of the output from each sensor.

Last Updated March 11, 2022

midon design 2000-2022

Greer, SC  29651 USA

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