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Voltmeter click™ Board

MIKROE-2436 Voltmeter click™ Board

MikroElektronika

Voltmeter click is a mikroBUS™ add-on board for measuring voltage in an external electric circuit. The board is designed to measure Direct Current only, and has a measurement range from 0 to 24V (it’s possible to measure both positive and negative charges). The design of the board is based on an OpAmp set up as a differential amplifier with a buffered input. Two onboard screw terminals (probe+ and probe-) are bringing in the current, which then flows through a row of four resistors. A voltage – proportional to the input charge is generated across the last two resistors. From there it is sent to the differential amplifier that further intensifies the difference between the two inputs (+/-). The resulting charge is exactly 33 times lower than the actual measured voltage. It is converted by an onboard 12-bit ADC before being outputted through the mikroBUS™ SPI interface (the firmware in the target board MCU should be set up to multiply the ADC value to get the actual voltage).

Specifications
  • Contents:Board(s)
  • Function:Voltage
  • Platform:mikroBUS™ Click™
  • Type:Sensor
  • Utilized IC / Part:MAX6106, MCP3201, MCP609
Parts
Associated Product
Microchip Technology 12 Bit
Category: Semiconductors, Development Tools-Integrated Circuits (ICs)-Data Acquisition-Analog to Digital Converters (ADCs)-12 Bits