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Erdos Miller 4-20mA Shield for Arduino
NEW - Version 1.5 Available
EM presents a new option for taking 4-20mA measurements with the Arduino. Our shield allows you to interface with up to four 4-20mA sensors for precise measurement. Use the on-board Arduino ADCs or the external 16-bit ADC from Texas instruments (ADS1115). These shields have been used in our consulting practice for years and now we're ready to make them available to the public. 
Features
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Four 4-20mA shield inputs. (2-wire, 3-wire, 4-wire compatible)
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Buffered ADC inputs
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High resolution (16-bit) external ADC with internal reference
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Also works with the built in Arduino ADCs (10-bit)
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11-14-bit (software selectable resolution) temperature sensor (LM73) -
On-board switching regulator to allow the Arduino to be powered from 10-36V
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Use the shield in a "pass-thru" configuration or as a 4-20mA sensor endpoints
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Example code is included to get you up and running quickly! (link below)
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NEW - Configurable amplifier gain for both 3.3V or 5.0V Arduinos
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NEW - User-adjustable bandwidth low-pass filter. Just solder through-hole capacitors of your choice
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NEW - User-configurable regulator output (5V or 3.3V)
