---
name: "Device::USB::PCSensor::HidTEMPer"
section: "3pm"
platform: "linux"
package: "libdevice-usb-pcsensor-hidtemper-perl"
version: "2:0.04-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Device::USB::PCSensor::HidTEMPer"
---

# Device::USB::PCSensor::HidTEMPer(3pm)

Device overview

## NAME

Device::USB::PCSensor::HidTEMPer - Device overview

## VERSION

Version 0.04

## SYNOPSIS

Shared code:

```
  use Device::USB::PCSensor::HidTEMPer;
  my $pcsensor = Device::USB::PCSensor::HidTEMPer->new();
```

Single-device systems:

```
  my $device = $pcsensor->device();
  print $device->external()->fahrenheit() if defined $device->external();
```

Multi-device systems:

```
  my @devices = $pcsensor->list_devices();
  foreach my $device ( @devices ){
    print $device->internal()->celsius() if defined $device->internal();
  }
```

## DESCRIPTION

This module is a simplified interface to the HidTEMPer thermometers created  by PCSensor. It hides any problems recognizing the correct objects to  initialize and the dependency on Device::USB. Use of the connected  thermometers can be done by either creating a array of objects if  multiple devices are connected, or the function **device()** if  only one device is present.

One example of its usage can be found in the Linux Journal August 2010,  "Cool Projects edition" page 32-34.

### CONSTANTS

The following constants are declared

- •

  PRODUCT\_ID

  Contains the hex value of the product id on the usb chip, in this case 0x660c

- •

  VENDOR\_ID

  Contains the hex value representing the manufacturer of the chip, in this case "Tenx Technology, Inc."

- •

  SUPPORTED\_DEVICES

  Contains the mapping between name and identifiers for all supported  thermometers.

  ```
   Hex value   Product         Internal sensor    External sensor
   0x5b        HidTEMPerNTC    Yes                Yes
   0x58        HidTEMPer       Yes                No
   0x59        HidTEMPer2      Yes                Yes
  ```

### METHODS

- •

  **new()**

  Initialize the system, and the USB-connection to be used.

- •

  **device()**

  Return a single thermometer instance. ONLY to be used in systems using a  single thermometer device. Returns undef if no devices was found.

- •

  **list\_devices()**

  Returns an array of recognized thermometer instances if an array value is  expected, otherwise it returns a scalar with the number of devices found.

## DEPENDENCIES

This module internally includes and takes use of the following packages:

```
 use Device::USB;
 use Device::USB::PCSensor::HidTEMPer::Device;
 use Device::USB::PCSensor::HidTEMPer::NTC;
 use Device::USB::PCSensor::HidTEMPer::TEMPer;
 use Device::USB::PCSensor::HidTEMPer::TEMPer2;
```

This module uses the strict and warning pragmas.

## BUGS

Please report any bugs or missing features using the CPAN RT tool.

## FOR MORE INFORMATION

None

## AUTHOR

Magnus Sulland \< msulland@cpan.org \>

## ACKNOWLEDGEMENTS

Thanks to Elan Ruusamäe for fixing some compatibility issues with perl 5.8.

Thanks to Daniel Fahlgren for adding the TEMPer2 device.

## COPYRIGHT & LICENSE

Copyright (c) 2010-2011 Magnus Sulland

This program is free software; you can redistribute it and/or modify it  under the same terms as Perl itself.

## POD ERRORS

Hey! **The above document had some coding errors, which are explained below:**

- Around line 205:

  Non-ASCII character seen before =encoding in 'Ruusamäe'. Assuming UTF-8