Data Acquisition Measurements

Created:  
Updated:   13Jun2024   23:43:08   UTC 2024-06-13T23:43:08Z

Voltage

Created:   29May2024   07:26:34   UTC 2024-05-29T07:26:34Z
Updated:   04Aug2024   20:50:13   UTC 2024-08-04T20:50:13Z
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Overview of measuring voltage: concepts, terminology, and techniques.

  • What is Voltage?
  • DC and AC Voltage Signals
  • Single-Ended and Differential Measurement Methods
  • Ground References
  • Floating and Grounded Signal Sources

Voltage Sensors

Created:   10Apr2023   18:47:07   UTC 2023-04-10T18:47:07Z
Updated:   19Aug2024   07:19:00   UTC 2024-08-19T07:19:00Z
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Covers different sensors that can detect or measure DC and AC voltage:

  • Resistor Voltage Divider Sensors
  • Li-ion and LiPo Battery Fuel Gauge Modules
  • AC Mains Voltage Sensors

Microcontroller ADC

Created:   20May2024   20:03:52   UTC 2024-05-20T20:03:52Z
Updated:   05Aug2024   01:10:15   UTC 2024-08-05T01:10:15Z
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How to measure 0V to 5V DC voltage with the Arduino Uno R3 microcontroller board, including how to improve the precision and accuracy of measurements by calibrating the Arduino ADC or by using an external precision voltage reference.

Created:   25May2024   04:39:22   UTC 2024-05-25T04:39:22Z
Updated:   05Aug2024   03:12:23   UTC 2024-08-05T03:12:23Z
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How to measure 0V to 3.3V DC voltage with the RPi Pico microcontroller board in MicroPython, including how to improve the precision and accuracy of measurements by calibrating the Pico ADC or by using an external precision voltage reference.

Current

Created:   02Jun2024   22:21:41   UTC 2024-06-02T22:21:41Z
Updated:   04Aug2024   23:08:40   UTC 2024-08-04T23:08:40Z
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Overview of measuring current: concepts, terminology, and techniques.

  • What is Current?
  • DC and AC Current Signals
  • Shunt Resistors and High/Low Side Measurements
  • Hall Effect Measurements
  • Current Transformer Measurements

Current Sensors

Created:   11Apr2023   08:13:31   UTC 2023-04-11T08:13:31Z
Updated:   23Aug2024   01:01:17   UTC 2024-08-23T01:01:17Z
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Covers different DC and AC current sensors:

  • Shunt Resistor Sensors
  • Hall Effect Sensors
  • Solid & Split Core Current Transformer (CT) Sensors
  • Coulomb Counters

Shunt Resistor

Created:   27Apr2023   19:38:46   UTC 2023-04-27T19:38:46Z
Updated:   24Aug2024   01:44:19   UTC 2024-08-24T01:44:19Z
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The INA169 High-Side DC Current Shunt Sensor IC outputs an analog voltage proportional to the current that goes through a shunt resistor. Both SparkFun and Adafruit have breakout boards for the INA169 IC with external circuitry and pin through holes to make it easy to interface to.

Created:   13Jun2024   10:09:20   UTC 2024-06-13T10:09:20Z
Updated:   05Aug2024   04:15:30   UTC 2024-08-05T04:15:30Z
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Measure low DC current in milliamps with the INA169 Module and Arduino Uno R3

  • INA169 Current Sensor Module Pinout & Specs
  • Arduino Uno R3 and INA169 Hookup
  • Arduino Code and Output
  • Input Current Range and Resolution

Created:   18Jul2024   02:08:13   UTC 2024-07-18T02:08:13Z
Updated:   05Aug2024   06:59:08   UTC 2024-08-05T06:59:08Z
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Measure low DC current in milliamps with the INA169 Module and RPi Pico

  • INA169 Current Sensor Module Pinout & Specs
  • RPi Pico and INA169 Hookup
  • MicroPython Code and Output
  • Input Current Range and Resolution

Power

Power Sensors

Created:   11Apr2023   08:14:01   UTC 2023-04-11T08:14:01Z
Updated:   24Aug2024   10:07:59   UTC 2024-08-24T10:07:59Z
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DC and AC voltage, current, and power sensor modules

Created:   22Jul2024   00:57:00   UTC 2024-07-22T00:57:00Z
Updated:   04Aug2024   04:03:44   UTC 2024-08-04T04:03:44Z
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Measure DC voltage, current, and power with the INA219 Module and Arduino Uno R3

  • INA219 Current Sensor IC and Modules
  • Arduino Uno R3 and INA219 Hookup
  • Arduino Code and Output

Created:   24Jul2024   02:03:09   UTC 2024-07-24T02:03:09Z
Updated:   04Aug2024   03:56:00   UTC 2024-08-04T03:56:00Z
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Measure DC voltage, current, and power with the INA219 Module and RPi Pico

  • INA219 Current Sensor IC and Modules
  • RPi Pico and INA219 Hookup
  • CircuitPython Code and Output
  • MicroPython Code and Output

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