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Current & Voltage Sensors


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  • SeeedStudio Non-Invasive AC Current Sensor (30A Max)
    accurate, easy to use
    Review by Kenneth
    I needed a means to monitor my new heat pump, specifically to know when it was more economical to switch to natural gas. This required constant measurement of power so I connected the sensor to an Arduino to measure current and connected an AC output wall wart to measure voltage. The Arduino data was sent on to a Raspberry Pi which handles all the calculations and graphing as well as a live web page. Results compare very closely to published specs. PS. I double looped the power wire through the sensor to increase the sensitivity from 0-30A to 0-15A.
    (Posted on 8/3/14)
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Programming DAQs using FlowBotics Studio & FlowStone

Posted on March 14, 2014

By Carl Owen & filled under Electronics, Software and Apps.

  In this tutorial we are going to cover Data Acquisition boards (or DAQ’s as they are better known) and how to program them using FlowBotics Studio which uses the FlowStone graphical programming language inside. Data acquisition devices form the basis of most robotics systems obtaining signals in and out of a system from external [...]
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Robot Reverse Engineering: Designing an Autonomous Transatlantic Boat

Posted on March 06, 2014

By Jeffrey Arcand & filled under Entertainment, Robotics Projects & Kits.

Some of you may have hear about Scout — The Autonomous Transatlantic Robot. She is a 12-foot long robotic solar-powered boat designed and built by 7 college/university students from the USA. She was launched in August 2013 from Rhode Island and programmed to autonomously cross the Atlantic Ocean to her destination in Spain. Although she [...]
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Guide to the Power Supply Options for Lynxmotion Controllers

Posted on September 12, 2013

By Jeffrey Arcand & filled under Electronics.

The Lynxmotion BotBoarduino, Bot Board II, and SSC-32 are known as great controllers, but some people get confused about VL, VS, and their different configurations. Well, here it is: the definitive Guide to the Power Supply Options for the Lynxmotion Controllers! Before going into the specifics of the controllers, let’s first cover some background information. [...]
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Basics: How Do I Choose a Battery?

Posted on January 15, 2013

By Coleman Benson & filled under Electronics, Schools & Curriculum.

Given the wide range of actuators and electronics which go into a robot, choosing the right battery may not be an easy task. This article guides you through the thought processes involved in choosing one or more batteries for your robot. Even if you are just starting in robotics, you may have already realized that [...]
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Arduino Microcontroller Feature Comparison

Posted on May 14, 2012

By Coleman Benson & filled under Industry.

Arduino is fast becoming one of the most popular microcontrollers used in robotics.There are many different types of Arduino microcontrollers which differ not only in design and features, but also in size and processing capabilities. In this article, you’ll understand the differences between the Arduino Microcontrollers (as of 2012). There are many features that are [...]
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3
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This sensor seems to be what you are looking for: RB-Spa-679.

You could also use this digital readout: RB-Dfr-118

Finally, you could use a voltage or current sensor form this section along with an Arduino: http://www.robotshop.com/current-voltage-sensors.html
2012-12-03 11:57 by Carlitos
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... choose a stepper motor (unipolar / bipolar, voltage and max current per coil). With regard to a sensor which can detect ... at the tip and wire them back to the actual sensors which are located outside of the tube itself. For ...
2012-11-01 09:01 by CBenson
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... 8 pounds each 3x Phidget 1122 30 ampere dual current sensor 16 pounds each 2x Phidget 1135 +-30 volt voltage sensor 4 pounds each 1x Phidget 1125 Humidity e ... each 6x lynmotion mounting for ultasonic and sharp sensors 3 pounds each 1x robotic mobile small platform ...
2012-08-18 12:08 by esapode688
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In that case, you cannot connect the receiver directly to the Arduino pins, you will need to create a circuit that will output an analogue voltage proportional to the amount of current passing trough the diode.

The resulting circuit will be very similar to this product: RB-Pol-49
2012-04-20 10:42 by Carlitos
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... (still waiting for what range it accepts) The current it draws is 420mA peak, and an average of ... the thing running) so I'd like to put in a voltage converter from the 12V battery to the logic, ... All those camera's, guns, doomsday devices and sensors must get their power from somewhere. So ...
2011-08-11 19:57 by Xraybroadcaster
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... a perfect published solution does not mean the sensors do not work. It only means they are being ... it is intended to do. It provides a variable voltage in proportion to the pressure applied, and ... can be problematic. I knew a long time ago the current method would be the best for this, as ...
2011-03-22 11:01 by Robot Dude
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... using 2 L293B h-bridges in parallel(for higher current) for bidirectional motor control. For a ... cells). We are regulating the logic level voltage at 5vdc with an LM294ct with a 100uF cap ... 3axis compass/accelerometer combo among other sensors. http://www.parallax.com/tabid/768/ProductID/582/Default.aspx ...
2011-02-18 01:00 by jbird468
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... motor controller (so you don't draw too much current from the Arduino). If you want to connect ... controller which has the correct current and voltage rating for the motors. 2. Does standard ... / V / Signal, which is often the same as for sensors. 3. Do I need any extra hardware (i.e. screws, ...
2011-02-16 08:46 by CBenson
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... the one you need based on the motor's nominal voltage and maximum continuous current). You don't need a separate microcontroller unless you want to automate part of the robot or incorporate sensors . You will likely need a separate battery (connected ...
2011-02-01 15:27 by CBenson
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... line of servos (AX-12+, etc) have built in feedback on their internal current and voltage. They do but they are somewhat different to use... different operating voltages, half-duplex ...
2009-06-11 12:52 by EddieB
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... friend of mine had this idea that we could use current sensors to measure how much current the servos on a leg ... have built in feedback on their internal current and voltage.
2009-06-11 09:16 by FlowbotX
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... as the OpenServo project for example, adding current sensors to each servo output could get messy fast. If you ... other end, and a current sense resistor + current to voltage converter IC such as the ZXCT1009FTA in the middle ...
2009-06-11 07:57 by EddieB
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... explained... I'll give it a shot. The maximum current the VL input will draw is stated to be 500mA ... is much less, in fact unless you are powering sensors from the header with the ABCD inputs it ... from batteries. First is the batteries output voltage drops due to their internal resistance. ...
2009-06-02 09:11 by EddieB
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... 9V+) and a 4xAA battery (to power motors and sensors). Note that if you choose a different Arduino ... gives you 3.3V and 5V from the Arduino (low current), 4.8V high current and 9V low current for additional modules. You can get 12V by using a voltage regulator (which easily plugs into the breadboard). ...
2009-04-06 10:03 by CBenson
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... Instructions I/O Pins = 16+2 Dedicated Serial Voltage Requirements = 5 - 15 vdc Current Draw at 5V = 55 mA Run / 450 μA Sleep PBASIC ... Basic Stamp (ALL MODLES) require an ADC chip to use IR sensors such as the Sharp GP2D12. You can get the Basic ...
2008-12-12 20:28 by SN96
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