Difference between revisions of "Module/Hygrosens TEMOD-I2C-R1"
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(Hygrosens TEMOD-I2C-R1 temperature converter for PT1000) |
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===Overview=== | ===Overview=== | ||
The Hygrosens TEMOD-I2C-R1 is a | The Hygrosens TEMOD-I2C-R1 is a converter board to measure temperature by a PT1000 sensor and output the data through an I2C interface. It is the standard fast temperature sensor for the SUMO. | ||
There are -R2 (-32°C .. +224°C) and -R3 (-32°C .. +480°C) modules available that have a higher maximum temperature but lower resolution. | |||
{|border="1" | |||
|-valign="top" | |||
||Module name||meteo/temp_temod | |||
|- | |||
|Sensor type | |||
|temperature | |||
|- | |||
|Range | |||
| -32°C .. +96°C | |||
|- | |||
|Resolution | |||
|(1/256)°C | |||
|- | |||
|Refresh rate | |||
|8Hz | |||
|- | |||
|I2C address | |||
|0xF0 | |||
|} | |||
[http://www.produktinfo.conrad.com/datenblaetter/500000-524999/502001-da-01-en-TEMPERATURMODUL_I2C_32_96_C.pdf Product data sheet] | |||
[http://alt.hygrosens.de/en/products/sensor-module Hygrosens product homepage] | [http://alt.hygrosens.de/en/products/sensor-module Hygrosens product homepage] | ||
[http://heraeus-sensor-technology.de/media/webmedia_local/media/pdfstemperatursensorelemente/m_222_d.pdf Heraeus PT1000] | [http://heraeus-sensor-technology.de/media/webmedia_local/media/pdfstemperatursensorelemente/m_222_d.pdf Heraeus PT1000] | ||
===Hardware=== | ===Hardware=== | ||
The board does have a 5V I2C interface. It can not be directly interfaced to 3.3V I2C interfaces | The data sheet mentions a minimum supply voltage of 6V but it seems to work ok with 5V. The board does have a 5V I2C interface. It can not be directly interfaced to the Paparazzi autpilot 3.3V I2C interfaces. A level shifting adapter board is needed. The PT1000 sensor is not included with the module. The Heraeus M222 sensor is used as it has a small mass. | ||
Module supplier: | |||
[http://www.conrad.de/ce/de/product/502001 Conrad] | [http://www.conrad.de/ce/de/product/502001 Conrad] | ||
Level shifter: | Level shifter supplier: | ||
[http://www.sparkfun.com/products/8745 Sparkfun] | [http://www.sparkfun.com/products/8745 Sparkfun] | ||
PT1000 sensor: | PT1000 sensor supplier: | ||
[http://www.conrad.de/ce/de/product/172041 Conrad] | [http://www.conrad.de/ce/de/product/172041 Conrad] | ||
==== Wiring ==== | |||
{|border="1" | |||
|-valign="top" | |||
||'''Autopilot I2C pin'''||'''Autopilot I2C'''||'''Level Shifter'''||'''TEMOD-I2C-R1'''||'''TEMOD-I2C-R1 pin''' | |||
|- | |||
|1 | |||
|GND | |||
|LV_GND | |||
| | |||
| | |||
|- | |||
|2 | |||
| +5V | |||
|HV_HV | |||
|Vdd | |||
|1 | |||
|- | |||
|3 | |||
| +3.3V | |||
|LV_LV | |||
| | |||
| | |||
|- | |||
|4 | |||
|SDA | |||
|LV_TXI_Chan1 | |||
| | |||
| | |||
|- | |||
|5 | |||
|SCL | |||
|LV_TXI_Chan2 | |||
| | |||
| | |||
|- | |||
| | |||
| | |||
|HV_GND | |||
|GND | |||
|2 | |||
|- | |||
| | |||
| | |||
|HV_TXO_Chan1 | |||
|SDA | |||
|3 | |||
|- | |||
| | |||
| | |||
|HV_TXO_Chan2 | |||
|SCL | |||
|4 | |||
|} | |||
===Usage=== | ===Usage=== | ||
To use the | To use the temperature sensor add the module to your airframe file. | ||
{{Box Code|conf/airframes/myplane.xml| | {{Box Code|conf/airframes/myplane.xml| | ||
<source lang="xml"> | <source lang="xml"> | ||
| Line 35: | Line 112: | ||
</source> | </source> | ||
}} | }} | ||
The standard module is the TEMOD-I2C-R1 with the highest resolution. The -R2/-R3 type can be configured. | |||
{{Box Code|conf/airframes/myplane.xml| | |||
<source lang="xml"> | |||
<modules> | |||
<load name="temp_temod.xml"/> | |||
<configure name="TEMOD_TYPE" value="TEMOD_I2C_R2"/> | |||
</load> | |||
</modules> | |||
</source> | |||
}} | |||
===Result message=== | |||
The raw data (itemp) and the converted result (temp) is written to the log file. | |||
{{Box Code|conf/messages.xml| | |||
<source lang="xml"> | |||
<message name="TMP_STATUS" id="86"> | |||
<field name="itemp" type="uint16"/> | |||
<field name="temp" type="float" unit="deg_celsius" format="%.2f"/> | |||
</message> | |||
</source> | |||
}} | |||
===NOTES=== | ===NOTES=== | ||
The location of the sensor on the aircraft does matter. There are various papers that analyze the best location. So far we have installed them within tubes (to protect from sunlight/heating) on the wings. That might not be the optimum place | The location of the sensor on the aircraft does matter. There are various papers that analyze the best location. So far we have installed them within tubes (to protect from sunlight/heating) on the wings. That might not be the optimum place. | ||
[[Category:User_Documentation]] [[Category:Modules]] | [[Category:User_Documentation]] [[Category:Modules]] | ||
Revision as of 01:45, 5 March 2013
Overview
The Hygrosens TEMOD-I2C-R1 is a converter board to measure temperature by a PT1000 sensor and output the data through an I2C interface. It is the standard fast temperature sensor for the SUMO.
There are -R2 (-32°C .. +224°C) and -R3 (-32°C .. +480°C) modules available that have a higher maximum temperature but lower resolution.
| Module name | meteo/temp_temod |
| Sensor type | temperature |
| Range | -32°C .. +96°C |
| Resolution | (1/256)°C |
| Refresh rate | 8Hz |
| I2C address | 0xF0 |
Hardware
The data sheet mentions a minimum supply voltage of 6V but it seems to work ok with 5V. The board does have a 5V I2C interface. It can not be directly interfaced to the Paparazzi autpilot 3.3V I2C interfaces. A level shifting adapter board is needed. The PT1000 sensor is not included with the module. The Heraeus M222 sensor is used as it has a small mass.
Module supplier: Conrad
Level shifter supplier: Sparkfun
PT1000 sensor supplier: Conrad
Wiring
| Autopilot I2C pin | Autopilot I2C | Level Shifter | TEMOD-I2C-R1 | TEMOD-I2C-R1 pin |
| 1 | GND | LV_GND | ||
| 2 | +5V | HV_HV | Vdd | 1 |
| 3 | +3.3V | LV_LV | ||
| 4 | SDA | LV_TXI_Chan1 | ||
| 5 | SCL | LV_TXI_Chan2 | ||
| HV_GND | GND | 2 | ||
| HV_TXO_Chan1 | SDA | 3 | ||
| HV_TXO_Chan2 | SCL | 4 |
Usage
To use the temperature sensor add the module to your airframe file.
| File: conf/airframes/myplane.xml |
<modules>
<load name="temp_temod.xml"/>
</modules>
|
The standard module is the TEMOD-I2C-R1 with the highest resolution. The -R2/-R3 type can be configured.
| File: conf/airframes/myplane.xml |
<modules>
<load name="temp_temod.xml"/>
<configure name="TEMOD_TYPE" value="TEMOD_I2C_R2"/>
</load>
</modules>
|
Result message
The raw data (itemp) and the converted result (temp) is written to the log file.
| File: conf/messages.xml |
<message name="TMP_STATUS" id="86">
<field name="itemp" type="uint16"/>
<field name="temp" type="float" unit="deg_celsius" format="%.2f"/>
</message>
|
NOTES
The location of the sensor on the aircraft does matter. There are various papers that analyze the best location. So far we have installed them within tubes (to protect from sunlight/heating) on the wings. That might not be the optimum place.