AVT5373 C

Miniature device with ATmega32 microcontroller and Flash memory (SD card), which is an uncomplicated system for acquiring positive temperature. It can also be the basis for creating other measurement systems that require recording data in a public format that can be processed using a PC.

Recommendations: the recorder can be useful in a greenhouse, a food storage warehouse and other places that require documenting temperature changes.

Basic information:

• supply voltage: 3.3 V DC (or 2 AA batteries, CR2450 / 2477 battery - depending on the supply voltage of the SD card)
• load current (sleep state / SD card recording / initialization): 700 mA / 8 mA / 26 mA (depending on the type and manufacturer of the memory card)
• temperature measurement resolution: 0.0625oC
• temperature measurement accuracy: 0.5 ° C
• measuring range: 0.125oC
• measurement interval: measurement every 1s
• settings of the most important Fuse-bits:
  • CKSEL3 ... 0: 0100,
  • SUT1 ... 0: 10
  • CKOPT: 1
  • JTAGEN: 1
  • BODEN: 1
  • SPIEN: 0
  • OCDEN: 1
  • BOOTRST: 1
• system assembled and running

A detailed description in EP12 / 12 or