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Summary of Contents for SeeedStudio Grove TA12-200
- Page 1 Grove - Electricity Sensor Release date： 2015/9/22 Version： Wiki: http://www.seeedstudio.com/wiki/index.php?title=Twig_-_Electricity_Sensor Bazaar: http://www.seeedstudio.com/depot/Grove-Electricity-Sensor- p-777.html?cPath=25_28...
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Page 2: Document Revision History
Document Revision History Revision Date Author Description Sep 22, 2015 Loovee Create file... -
Page 3: Table Of Contents
Contents Document Revision History · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2 1. - Page 4 Disclaimer For physical injuries and possessions loss caused by those reasons which are not related to product quality, such as operating without following manual guide, natural disasters or force majeure, we take no responsibility for that. Under the supervision of Seeed Technology Inc., this manual has been compiled and published which covered the latest product description and specification.
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Page 5: Introduction
1. Introduction The Electricity sensor module is a member of Grove. It is based on the TA12-200 current transformer which can transform the large AC into small amplitude. You can use it to test large alternating current up to 5A. -
Page 6: Features
2. Features Grove compatible interface Maximum 5A input High accuracy Small size... -
Page 7: Application Ideas
3. Application Ideas Alternating current measurement Device condition monitoring... -
Page 8: Specification
4. Specification Key Specification Items PCB Size 2.0cm*4.0cm Interface 2.0mm pitch pin header IO Structure SIG,NC,NC,GND ROHS Electronic Characteristics Items Norm Unit Transformation ratio 2000:1 Input Current Output Current Sampling Resistance Ω Sampling Voltage Working Frequency Nonlinear scale 0.2% Phase Shift Operating Temperature ℃... -
Page 9: Usage
Function: Measure the amplitude current of the alternating current and the effective current of the sinusoidal alternating current. Hardware: Grove - Electricity Sensor Date: Jan 19,2013 by www.seeedstudio.com #define ELECTRICITY_SENSOR A0 // Analog input pin that sensor is attached to float amplitude_current; //amplitude current float effective_value;... - Page 10 int sensor_max; sensor_max = getMaxValue(); Serial.print("sensor_max = "); Serial.println(sensor_max); //the VCC on the Grove interface of the sensor is 5v amplitude_current=(float)sensor_max/1024*5/800*2000000; effective_value=amplitude_current/1.414;//minimum_current=1/1024*5/800*2000000/1.414=8.6(mA) //Only for sinusoidal alternating current Serial.println("The amplitude of the current is(in mA)"); Serial.println(amplitude_current,1);//Only one number after the decimal point Serial.println("The effective value of the current is(in mA)");...
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Page 11: With Raspberry Pi
With Raspberry Pi 1. You should have got a raspberry pi and a grovepi or grovepi+. here 2. You should have completed configuring the development enviroment, otherwise follow 3. Connection Plug the sensor to grovepi socket A0 by using a grove cable. 4. - Page 12 # Calculate amplitude current (mA) amplitude_current = (float)(sensor_value / 1024 * grove_vcc / 800 * 2000000) # Calculate effective value (mA) effective_value = amplitude_current / 1.414 # minimum_current = 1 / 1024 * grove_vcc / 800 * 2000000 / 1.414 = 8.6(mA) # Only for sinusoidal alternating current print "sensor_value", sensor_value print "The amplitude of the current is", amplitude_current, "mA"...
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Page 13: Resources
6. Resources Grove -Electricity Sensor Eagle File Schematic in PDF ... - Page 14 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Seeed Studio 101020027...
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