AVT2949 A +

Pointer measures have been commonly used over the years. As the technology progressed, these devices were replaced by digital displays - firstly Nixie, LED and now common LCD. However, in some cases, clue meters are still useful especially in the measurement of rapidly changing values. That's why we propose to build a system that is a combination of tradition and modernity - an electronic indicator in which a series of LEDs is used as a guide. The device is designed to measure voltage, current and after adding a temperature sensor.

The device is particularly recommended in electronic laboratories and electroacoustics

Selected parameters:

• a system designed based on the ATmega8 microcontroller
• three ranges of voltage measurements: 0-3.2V, 0-32V, 0-320V
• three current measurement ranges: 0-3.2A, 0-320mA, 0-180mA
• temperature measurement in the range of 0-80 ° C
• reading field - 32 LED diodes
• operating mode control - four microswitches with backlight
• energy saving mode
• possibility of battery power supply
• power supply - 9-30Vdc
• a printed circuit board, programmed layout and documentation in the set
  
  A detailed description in EdW 10/10