MIKROE-2377

MIKROE-2377 Datasheet

From MikroElektonika Documentation

Part	Datasheet
MIKROE-2377	MIKROE-2377 (pdf)

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Ammeter click From MikroElektonika Documentation Ammeter click is a mikroBUS add-on board with circuitry for measuring electric current both AC and DC . Features and usage notes Ammeter click Two onboard screw terminals probe+ and probe- are bringing in the current, which then passes through a shunt resistor. A voltage proportional to the strength of the current is generated accross the resistor. This voltage passes through an AD8615 operational amplifier before it's fed into a 12- bit ADC which then outputs a digital value through the mikroBUS SPI interface. Schematic also available in PDF Ammeter click carries MCP3201, board-schematic-v100.pdf a 12-bit ADC. In case you need more precise measurements with a higher sample rate, you can use Ammeter click with a DSP microcontroller. In such case you would take the analog voltage directly through the click's AN pin. In both cases, the firmware processes the digital value to determine the exact amperage between 1mA and 1A for DC current. It's also possible to measure AC current by deriving the value from peak to peak measurements. At the same time, the voltage can be directly monitored through the AN pin. The maximum safe voltage range for the current measured is 48V. The board uses either a 3.3V or 5V power supply it's important not to power the board from the same power source you wish to measure . Programming Ammeter click IC/Module MCP3201 MAX6106 AD8616 Interface SPI, AN Power supply 3.3V, 5V Website This code snippet shows how to read the ADC values from the board. 1 unsigned int getADC char i, buffer; volatile unsigned int read, read1, avrg, sum; sum = 0;

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Ammeter click

From MikroElektonika Documentation

Ammeter click is a mikroBUS add-on board with circuitry for measuring electric current both AC and DC .

Features and usage notes

Ammeter click

Two onboard screw terminals
probe+ and probe- are bringing
in the current, which then passes
through a shunt resistor. A voltage
proportional to the strength of the
current is generated accross the
resistor. This voltage passes
through an AD8615 operational
amplifier before it's fed into a 12-
bit ADC which then outputs a
digital value through the
mikroBUS SPI interface.

Schematic also available in PDF

Ammeter click carries MCP3201,
board-schematic-v100.pdf
a 12-bit ADC. In case you need
more precise measurements with a
higher sample rate, you can use

Ammeter click with a DSP microcontroller. In such case you would take the analog
voltage directly through the click's AN pin.

In both cases, the firmware processes the digital value to determine the exact amperage between 1mA and 1A for DC current. It's also possible to measure AC current by deriving the value from peak to peak measurements. At the same time, the voltage can be directly monitored through the AN pin.

The maximum safe voltage range for the current measured is 48V.

The board uses either a 3.3V or 5V power supply it's important not to power the board from the same power source you wish to measure .

Programming

Ammeter click

IC/Module MCP3201 MAX6106

AD8616

Interface SPI, AN

Power supply
3.3V, 5V

Website

This code snippet shows how to read the ADC values from the board.
1 unsigned int getADC
char i, buffer;
volatile unsigned int read, read1, avrg, sum;
sum = 0;

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MIKROE-2377 Datasheet file may be downloaded here without warranties.

Datasheet ID: MIKROE-2377 649234