Questions tagged [encoder]

An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purposes of standardization, speed, secrecy, security or compressions

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2answers
36 views

Encoder direction change during index pulse

I have a quadrature encoder with an index pulse, and I would like to keep track of angular position over multiple turns. The microcontroller I am using has counters that count both index pulses (...
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1answer
25 views

3-to-2 line encoder (or generally 2^(n-1)-to-n) — not priority, but telling how many inputs are on?

This is not homework (not taking any classes) although it could be homework. I am wondering what is the easiest implementation using a single TTL chip or gates (fewest chip count) to encode the number ...
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37 views

Does EC11 Incremental Encoder need hardware debouncing and VCC for encoder?

I'm implementing an EC11E rotary encoder which has 3 pins + 2 pins for a switch. It seems like most of the projects I've seen online wire A/B and GND to the microcontroller, which to me, makes sense. ...
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1answer
42 views

Problem to find ALPS Encoder with only reference number

My ultrasonic tank uses two ALPS encoders. The problem is that both are defective and I would like to replace them. However, I have a lot of trouble finding the same ones. Please would any of you know ...
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3answers
57 views

Need help understanding a rotary encoder datasheet

I am trying to design a keyboard and have come across the realization that the datasheet for my rotary encoder asks for 5k resistors connected to terminals A and B of the encoder. However I am having ...
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1answer
47 views

Problem with the pulses given by the motor encoder

I'm experimenting with differential encoder and I have some questions now. First specs: motor reduction is 14:1 on official page, encoder count 512 pulses per revolution so that mean that on one full ...
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1answer
23 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
29 views

Brushless DC motor - number of hall sensors

When we have hall sensors inside a BLDC to use as encoders for the processor, I saw some diagrams on web showing 3 output signals (open collector outputs, need external pull-ups to the VCC of ...
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3answers
2k views

What is the meaning of this datasheet diameter notation?

I am reading this datasheet and I want to drill the correct size hole into the board and I am confused what 5-ø1.2 means. I can't understand what the 5 and - sign mean? Your help would be greatly ...
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2answers
51 views

Suitable motor for steering wheel angle of the self-driving car?

I am working on the self-driving car as a final year project. I want to map the steering wheel motor angles with frames captured via a camera of the track. In order to generate the dataset, I am ...
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33 views

Best options for operation of rotary incremental encoders with micro controllers

At my workplace, I found a measuring device with six rotary encoders. The device is from the early 1990s. I wanted to reactivate the encoders, I even found software for it on floppy disks. However, to ...
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1answer
34 views

Using SPST Switch as Button using Capacitor, which type?

Before I start, know that I'm still very much a beginner at electrical engineering. I'm building a switch box to be used for PC simulators using mainly (non-momentary) SPST switches and a USB encoder. ...
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1answer
44 views

Help on translating 5V rotary signal output to interface with lathe's cnc controller!

I have a hall sensor (OH137 - open collector) as an index signal on my lathe’s spindle. I have the sensor pulled high by a 1k resistor and can’t change it because they’re both glued in epoxy. This ...
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1answer
45 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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50 views

Converting a digital incremental encoder to an analogue voltage

Is there a way to convert the output of an incremental encoder (50% duty cycle) to an analogue voltage using analogue components? This is because the interface that I'm using doesn't handle a large ...
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1answer
52 views

Reading a rotary encoder using a microcontroller and converting to Serial TTL?

I have an incremental rotary encoder (Bournes-EMS22Q) that I would like to have available on a wired network via RJ45 or via serial TTL (we have a serial-to-ethernet converter we can use Netburner ...
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0answers
38 views

Step by step Assembly of state machine

I need help in creating a layout or circuit for this state machine and instructions on how to put the hardware together. It’s a rotary encoder that’s application will be into a gaming controller.. ...
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2answers
102 views

Encoder acting as 2 buttons

First of all I’d like to state I’m fairly new to this and ask for grace if my explanations are hard to grasp. I’d like to know if it is possible to wire a scroll wheel encoder (the one with three ...
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48 views

Problem with understanding the circuit related to stable matching security

I am trying to understand a circuit used for stable matching. The paper title is: MPCircuits: Optimized Circuit Generation for Secure Multi-Party Computation and is available : here I am attaching ...
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1answer
56 views

How does a Resolver-to-digital converter work?

I am currently taking a class on sensors and sensor design and I came across this homework problem: In a commercial resolver to digital converter the digital angle Φ is determined to be 20 degrees. ...
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1answer
22 views

Number of pins of elements

I've created a footprint for the rotary encoder, which symbol is shown below A footprint for this element has been done by myself. I've been getting a warning which goes like this: "WARNING(ORCAP-...
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0answers
113 views

Is there a faster alternative to the HT12E / HT12D IC?

I am looking for a quicker alternative to the HT12E encoder IC. This IC lets you encode 8 bits of adresse and 4 bits of data. Once the bits are encoded, it outputs a frame containing all those bits ...
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1answer
106 views

How To extend bits in a VHDL code

I'm trying to do the following let's say bit extension in a generic way. First Considering B signal with an even number of bits (NBITS). here is an example: B = 10100011 Second, adding a zero bit ...
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47 views

Is it possible to implement a 3 Input Encoder?

I was want to implement a 3 input priority encoder. Is it possible to implement this by cascading two 2-1 encoders? If so how does this work? It also needs two outputs?
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39 views

Optical encoder from printer always has about 1.60V on output

I have disassembled HP DeskJet 3000 j310a. I've removed paper feeder encoder board (shown on image). The problem is that when I connected it to 3V3 supply (it has builtin resistor on LED side), it ...
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1answer
50 views

Dynamically setting address of HT12E with Raspberry Pi

I have a project where I need to send a wireless signal to one of several receivers to turn on an LED. One transmitter, several (many) receivers, each with an LED. The receivers need to have low ...
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0answers
38 views

8 pole-pairs BLDC sensored control design

I need to control a 16 poles BLDC motor, sensing the position of the rotor with an optical encoder that support 3 integrated commutation output pins (U,V,W), emulate the output of hall effect sensors. ...
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1answer
81 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
149 views

How do I move a motor to a desired angle using a motor encoder?

So I have this project, the goal is basically to be able to make a motor move to rotate a set of gears and move a panel attached to a hinge to a desired angle. I have a motor encoder attached to the ...
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29 views

What pattern can be assumed to write the functions of a 16x4 priority encoder?

How can we find the expressions of the solutions without using K-Map or the Tabulation method?
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1answer
230 views

Using motor encoder with VESC

I want to use this BLDC motor on a project. In its datasheet, the encoder pin sequence is shown as follows. I want to control this motor with a VESC. There is an overview of the board here. In it, ...
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0answers
47 views

Determining/Specing the proper stepper Motor

I am trying to properly spec a proper stepper motor for a project I am working on. I am attempting to provide roughly 3000 pounds of compressive force (about 13300 Newtons) using a p series NEMA 34 ...
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1answer
42 views

DC motor accuracy with encoder

I am building a coil winding machine and I've already set up something that works. I used two nema17 stepper motors and tb6600 stepper driver cards. The problem is that motors are seems to overheating ...
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56 views

How can I disconnect some wire connections automatically when a specific one is disconnected?

I have a selector switch that can select a 5V digital signal to the output or terminal C of the encoder to the output. It's simple so far. But my application requires that when I select digital signal ...
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2answers
67 views

Why we dont consider the complements of other inputs in encoder equations?

Consider the below diagram of the 8:3 encoder from this page. Above, n0 = I1 + I3 + I5 + I7 n1 = I2 + I3 + I6 + I7 n2 = I4 + I5 + I6 + I7 I was guessing why we dont consider complements ...
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2answers
106 views

What do you do to help you grasp a concept or understand something you're seeing for the very first time?

Often in industry you come across a lot of different devices or even concepts you're seeing/hearing for the very first time. Things like encoders, resolvers, PID, pressure transmitters etc. I would ...
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2answers
561 views

Reading a high-speed rotary encoder with a Raspberry Pi

I'm trying to setup a Raspberry Pi to measure the position and speed of 8 DC motors that all have incremental quadrature encoders. At full speed (unloaded), each encoder ticks at 3.3 kHz. I assume ...
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1answer
92 views

Need for MOSFET in encoder circuit?

I recently started to work on encoder sensors and circuits. I found one optical encoder sensor from vishay electronics that suits my requirement, I found a circuit diagram online and it works ...
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3answers
108 views

Determine angular position from two potentiometers

I am trying to generate a continuous angle based on the output of the two potentiometers that are inside my device. The pots are shifted by 180 degrees and are capable of spinning continuously. How ...
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2answers
61 views

How to connect a few shields correctly?

There are several shields on my PCB: shield on CAN-bus, on RS485, on Ethernet, on ENCODER motor signals. How do I correctly connect all these shields? If I use the star topology, which filters should ...
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0answers
120 views

TTL “radio-button” using priority encoder and latch

I'm liking this site and I am not always using it to just throw a question but to develop ideas all the way. First time I did that was on StackOverflow I need JSZip and gzip for my web page, and JSZip ...
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0answers
72 views

Conducted Noise On Earth Ground Created by Forklift Battery Charger

INTRO: I work for an AGV company trying to integrate an OEMs battery & charger into our application. I can't go into too much detail since I'm under and NDA, but I'll do my best. DESC. OF ...
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1answer
57 views

Scrolling wheel encoder with button push button action into wheel axis

I am looking for a wheel that you can push into as a button as well as scroll indefinitely in either direction. Here's the exact part I am talking about. I'm not sure exactly what it is called. The ...
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4answers
4k views

What advantages do the absolute encoders gain by employing Gray code transmission instead of binary code?

I have read about the Gray code, but in practice I don't get what is the advantage of it over the binary code. Some absolute encoder manufacturers offer both types so one has to decide before buying ...
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1answer
52 views

Confused with the time diagram and wiring for this SSI interface

I have an AEAT-6010/6012 10/12-bit magnetic absolute encoder and it has the following pin-outs: Since it is SSI but not SPI I dont use the CSn output and leave it. I supply 5V to the encoder and ...
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0answers
187 views

How it is possible to synchronise sensors?

I am wondering how sensors are usually synchronized in time. I would like to synchronize two sensors in order to be sure that at every time-stamp both of them are giving me a measure. What I saw that ...
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2answers
162 views

Schmitt Trigger Level Translation from Encoder

This is my first time using an encoder as well as a Schmitt trigger. Typically, I would do debouncing in software, but I want a hardware solution for the sake of learning how to do so. The encoder I ...
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0answers
133 views

How does this linear actuators know absolute position of their carriages?

As title, I can't find out how main system of this linear actuators knows each carriage absolute position. This system is iTRACK from Rockwell, but there are some other brands that do this. Here an ...
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3answers
77 views

How to carry quadrature encoder data using a single signal?

A quadrature encoder can be thought of as two switches, usually sharing one of the terminals, i.e. we have COM(mon), A and B. Is there some simple way of carrying its output on a single wire? How ...
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2answers
153 views

Are there Multi-Turn Absolute Encoders that Store the Number of Turns in Non-Volatile Manner?

I have been learning about absolute encoders, and am testing a multi-turn absolute encoder (link to datasheet is here). During testing, I realized that after shutting down the power, although the ...

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