Questions tagged [rotary]

Characterized by circular movement around an axis, as opposed to linear movement along a line.

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122 views

Help identifying pins in EVQV9C00116E rotary encoder

I'm trying to make a button box for a sim racing rig and need a few rotary encoders for menu browsing. I plan to connect it to an arduino but I can't seem to figure out how to wire things up. I have ...
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0answers
52 views

Does potentiometer accuracy change with degree of movement?

I want to use a conductive plastic potentiometer for my actuator application where movement is +/- 40 degrees. As in datasheet, the potentiometer linearity is given as +/-0.2 % which I think is for ...
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1answer
200 views

How do memory seats keep track of their position?

I was wondering how do memory seats keep track of their position. Since this kind of equipment existed in 1990's cars, it must be simple yet ingenious. I have been thinking about this for quite a time ...
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1answer
147 views

Short range wireless pulse transmission in wind anemometer

I have an old windmil-type anemometer, something like this: (Illustrative image, the real unit is 40+ year old soviet-made device with presumably no operational active components inside) My project ...
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1answer
316 views

Use a potentiometer in place of a 4 position rotary switch?

I have a little oil heater in my house that is on the fritz. Its "Off-High-Med-Low" switch is just basically gone. While I might be able to dig out another switch from some of my electronics junk, I ...
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4answers
2k views

Computer controlled rotary switch

I have a circuit with a rotary switch (1 pole, 6 positions). Instead of turning this switch by hand, I would like to control it via a computer. Are there any components that can do this? They would ...
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1answer
168 views

Rotary potentiometer angle to voltage relation

I have a 10k rotary potentiometer which turns from 0° to 270°. I wire it to an Arduino with the middle pin (2) connected to an analog input (A0) and the other two pins (1 and 3) connected to 5V and ...
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2answers
2k views

rotary encoder pin identification

Every datasheet that I have looked at mentions the function of pins A, B and C but no mention of D and E. I'm unsure which one is the push button output and which one is the Ground pin. I'm currently ...
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1answer
1k views

Mouse Wheel Rotary Encoder … encoding wrong

OK, guys - I'm pretty confused here. I bought a cheap wireless mouse to gut and use in a project. Right now I'm trying to get the rotary encoder behaving, but (while it IS behaving) it's behaving ...
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3answers
284 views

Maximum rotation rate for digital compass

How well do digital compass ICs (e.g. HMC5843) cope with when rotating rapidly? If I were to rotate one at 1000 RPM, what kind of signal could I expect to get from it? Would the measured bearing lag ...
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4answers
809 views

Is it possible to use 2 rotary encoders at once?

I'm working on this project: http://www.corsaclube.com.br/viewtopic.php?t=102183 I'm basically installing an iPad mini on the dash of my new car, but I'm facing a problem: The iPad doesn't offer ...
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1answer
59 views

KY040 rotary encoder weird waveform

Edit: Figured it out. I posted answer. I have a KY040 rotary encoder hooked up to a 5V source, and the oscilloscope hooked up to the CLK output. When I turn the encoder, CLK goes low as you can see ...
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1answer
493 views

Stepper motor resolution calculation

I am not familiar on how to calculate the stepper motor resolution to operate with multi-turn absolute rotary encoder. Stepper motor details as follows, Total step - 600; speed - 160 pps; Motor type ...
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2answers
58 views

Can HEDS-5500 rotary encoder work with semicircular shaft?

Does anybody know if HEDS-5500 rotary encoder can be used with a stepper motor semicircular shaft (with the shape like in this picture)?
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1answer
664 views

Searching for the name of a rotary switch/push button switch combination [closed]

I'm looking for a switch that combines a rotary switch and a push button switch. The only one I could find is the "Würth Elektronik WS-RPTL 481RV12172100" which is not exactly what I was hoping to ...
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1answer
165 views

DIT-MCO hardware with Rotary switch & Nixie Tubes?

I really needed some help. I can't for the life of me find any information pertaining to this hardware manufactured by the DIT-MCO Electronics Division. The most information I can glean is that It's a ...
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1answer
721 views

Arduino hinge rotation sensor

I'm having trouble finding a specific component for a project I'm working on. What I need is a sensor that can act as a hinge (or can measure the rotation of a hinge) and tells the degree of rotation ...
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1answer
54 views

How does a “pulse dialer” (e.g. IN9151) internally work?

I'm wondering how a so called "pulse dialer" like the IN9151 (https://www.digchip.com/datasheets/parts/datasheet/237/IL9151-3N-pdf.php) internally works, meaning how it is achieved to ...
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1answer
82 views

Receive same GPIO input signal on multiple raspberry's from one source

I'm having 7 raspberry Pi's 3 connected to 7 screens, running an python 2.7 app to download different images from google drive, every raspberry has different images. Geeqie is displaying those images ...
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2answers
335 views

Determining optical rotary encoder RPM

I hope the first part of this question isn't too physics based for this forum but I am trying to use an optical rotary mask encoder such as this one (Optical Encoder Pair Kit) to determine the RPM of ...
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1answer
66 views

Arduino reading double-din radio volume rotary dial knob [closed]

Hey all I bought a Chinese double din radio in order to modify it to my liking. The main reason why i went with this one is that it had a few buttons and turn knobs on the front and i wanted to use an ...
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2answers
249 views

Why does this rotary switch register multiple positions simultaneously?

New to electronics, tackling a project that involves a switch matrix. Having grasped the concept of regular button matrices and modifier keys, it’s time to move on to explore alternative types of ...
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1answer
548 views

Quadrature encoder interface loses count

I am trying to read the encoder signal of a drive amplifier using an ARM (TM4C). The amplifier has differential outputs (+- 5V), the MCU has 2 QEIs (Quadrature Encoder Interfaces). First I have ...
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2answers
956 views

No-Stop Rotary Switch

I need help naming a type of rotary switch. (If it exists.) I am looking for a rotary switch with no stopping point, so it would go around and around when turned, repeating each position infinitely. ...
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2answers
92 views

Scaling signal voltage from 0 to 5 V

I have a rotary 5 V potentiometer with a center point of 2.5 V, that only reads a max of 3.8 V and a min of 1.2 V due to mechanical restrictions I can not give the pot and more movement. Is there a ...
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1answer
3k views

How does a Rotary Encoder work without connecting it to 5V

Like in this picture: I know we can hook 5v later externally to debounce but still, i heard it works without debounce circuit even if its bouncy. But how can it send signals if there are only output ...
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1answer
625 views

Detect rotation direction of a rotary switch

Posted recently this: https://electronics.stackexchange.com/questions/210904/detect-rotation-of-a-rotary-switch But I want to be more precise about what I'm trying to do. I have a 1 pole 8 position ...
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1answer
1k views

Whats the name of a BMW iDrive type of encoder? [closed]

I am looking for a component that some people call a 7 way encoder switch. Basically, if you look at the center piece of the BMW iDrive, its that. It's a knob looking piece that if you turn to the ...
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2answers
507 views

Continous rotary input?

I need something to work as an input for a rotary device. It must be able to rotate continously, accurate to a degree of rotation, and so that any extra full rotation will have no effect on the input, ...
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0answers
67 views

Do rotary encoders really have no bounce?

I've always needed to add debouncing code, when handling switch inputs on microcontrollers. While I've only used three different types of switch, they all needed debouncing. My (two) rotary encoders ...
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1answer
24 views

Rotary encoder Grayhill SERIES 26 pinout

I can't figure out how this rotary encoder works. What's the Vcc and GND? The technical sheet is attached here but it does not say anything about how to wire it http://www.grayhill.com/assets/1/7/...
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1answer
80 views

Detecting rotation from a fixed sensor

I am looking for a way how to detect the rotation of an object that is hanging from ceiling, attached with a rope. Since the object can freely rotate for many revolutions (until the rope is too ...
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2answers
130 views

Invert or turn Aux Signal mono using Rotary Switch

Is it possible to use a 3 Pole 4 Position rotary Switch to do the following on the respective positions: Send the Aux signal through normally Invert Left and Right Send the Left Signal to both ...
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0answers
249 views

Understanding a rotary switch voltage rating

I am continuing work on designing a vacuum tube tester and curve tracer. I have described part of the challenge in this question: Designing an analog high voltage multiplexer The component I'm ...
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1answer
156 views

Pass power to components on a high speed spinning motor

I have a small Emax RS2205 2600kv 16v DC Motor that is turning a PCB with IC chips that needs to be powered. I want to send 2 power cable (VCC and GND) from to stationary battery to the rotating PCB. ...
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1answer
190 views

High resolution rotary encoder

I'm trying to find a way to translate small angle rotation into some form of digital signal. 1 degree resolution would be excellent, but something like 5 degrees would be ok. I need something like a ...
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0answers
292 views

Is it technologically possible for IVR systems to recognize and support pulse dialing

I understand all the concepts behind IVR systems. I've never been able to quite understand why pulse dialing can't be used with IVR systems. Tones are obviously sent to the other party, but a pulse ...
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1answer
55 views

1 switch-bank, 1 rotary, 5 inputs, 3 devices, no idea how

I have 3 separate LCD's which have 5 push buttons to control the LCD settings and power. All push buttons on the LCD share a common ground. What I would like to do is use 1 switch bank and a 3-...
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1answer
292 views

What do the pins mean on this rotary encoder?

I'm trying to repair a speaker of mine (old AudioEngine A5). The encoder that controls the volume is not working properly and turning the volume up REALLY loud sometimes when you touch it. I had some ...
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2answers
420 views

Rotary Encoder for Android GPIO

I'm not too sure if this is the place to ask but I'm not sure where else this question belongs. I'm trying to hook up a rotary encoder to an Android dev board's GPIO pins, although I'm having trouble ...
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2answers
1k views

Measuring rotation angle

I have a horizontal platform that rotates over a vertical axis. Is there a way to measure the rotation angle with respect to earth (or its initial position) without gyroscopes, rotary encoders on the ...
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1answer
161 views

How to understand data from Bluetooth LE accelerometer with X,Y,Z as single value? [closed]

I'm using a cheap BLE accelerometer MPU 6050 that notifies X, Y, Z values as a single attribute. It seems that this type of value hasn't been standardized and I don't know how to read data correctly. ...

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