The signal-processing tag has no wiki summary.
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Which components to built remapping keyboard via USB in + out (remapped)
I know that it's fairly easy to change the emulate keyboard and mouse by Arduino. But I'm quite specific about the goal I would like to achieve hence I would appreciate if you could advise me which ...
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1answer
69 views
How to generate Chirp Signal using Arduino
i would like to generate Chirp Signal (Frequency Sweep) using Arduino. i have searched a lot in internet but didn't find anything.
Basically, any parameters is also ok. But the concept is what i am ...
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1answer
135 views
PWM signaling with Arduinos: What is the reason for the ground connection?
This may sound like a very dumb question and I apologise in advance.
I've gone through reading about PWM and working on some example sketches to control PC fan speeds using PWM and Arduino.
In all ...
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1answer
147 views
Sniffing RF signals
I am using an Arduino UNO and an RXb6 (I would link to the data sheet if I could find one) to try to decode a RF Signal that controls a remote outlet. I have the devices connected as you would assume ...
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1answer
47 views
Using arduino audio to controll led light
I am looking for a way to control led on a circuit board using audio input for learning purpose.
I have written my own speech recognition system using dynamic time warping in Python, but I would ...
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1answer
35 views
How to Segment Accelerometer Signal at idle points
I'm using an 3 axis Accelerometer(GY-521) to get the acceleration data and also the gyroscope to get the gyro data. I want to segment the signals at the idle points so that i can get the segmented ...
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1answer
59 views
Necessary sampling rate
I'm using an Arduino pro mini to receive the analog signals from three sensors. I was wondering what sampling rate I should sample at in order to properly represent these signals. I know it should be ...
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1answer
95 views
High frequency audio sampling and storage
I want to use an arduino duemilanove atmega168 for audio signal processing. I can sample the signal at around 38.5kHz using this code. I want to send the sampled data over the serial to a computer for ...
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2answers
123 views
How to process this XBee analog pins signal?
I'm new to XBee and a colleague setup a sender/receiver pair. I'm using an usb breakout and reading the values using this java XBee API in Processing/Java.
The issue I'm having is two of the ...
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3answers
665 views
How useful could the Arduino Yun be in computer vision in a robotics project?
I've recently ordered an Arduino Yun and several other components to begin on a small robotics project (based on an old 4x4 RC Truck). Although not mandatory for what I'd like to do, I was wondering ...
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1answer
77 views
Frequency will not change
I am working on a project where I am trying to get an input signal filtered according to its frequency. I checked the signal before it went into my DSP algorithm to see where the problem was and I ...
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2answers
408 views
How can I filter out noise from ADC lines without delay or signal change?
I'm working on a project with a joystick and I'm trying to keep everything a simple and low latency as possible. I am reading the pots with the onboard 10bit ADC on the ATmega 32u4 but may be ...
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3k views
Are there any signal smoothing libraries for Arduino?
I am working on a mobile robot controlled via a wireless 2.4 GHz link.The receiver is connected to the Arduino Uno which serves onboard as the main controller. The most critical (and main) input ...
