All Questions
Tagged with signal-processing microcontroller
47 questions
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Most important specs to look for in STM32 MCUs for DSP?
I’m planning to design a cost-efficient microcontroller-based DSP development board for audio processing applications (digital filter banks, potential ANC algorithms). While I know DSP chips like the ...
- 85
2
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2
answers
150
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How to amplify a modified sawtooth signal from 5 V to 15 V with 300 mA capability?
I’m working on a project where I need to amplify a modified sawtooth signal from 5 V peak to 15 V peak, driving a 1 kΩ load and controlling the current to reach a maximum value of 300 mA. The signal ...
- 21
2
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1
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217
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Using one I2S channel to transmit two audio files simultaneously
I am using ESP32-S3 for sending I2S signals to an external class D amplifier (MAX98357a) that takes in PCM data input and outputs the amplified signal into a speaker. Which then with the help of his ...
- 31
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3
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196
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How to sharpen the rise or fall time of a sinusoidal signal
I have this zero crossing detection circuit, and it does detect the zero crossing.
The problem is that the output signal is a bit sinusoidal than expected, and voltages around 2 V where it's neither ...
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0
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55
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How to quantise a bipolar analog signal using an ADC with lowest amount of signal noise
I have a linear position sensor that outputs an analogue signal between -4v and +4v corresponding to the position that I want to capture using an ADC and microcontroller.
It has a maximum resolution ...
-1
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1
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79
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Building a Hindmarsh-Rose model into a STM32 [closed]
I am wondering if it is possible to simulate Hindmarsh-Rose (HR) model on a embedded systems?
I need the output of the embedded system to match the burst/firing rate of a neuron.
what protocol could i ...
- 17
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1
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66
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How to make microcontroller such as Raspberry Pi external interruption handler for an antenna device? [closed]
I am pretty new to microcontroller, and I want to make wireless device, that actually consists of two devices:
One has a button, another has a led - when the button of the first device is pressed and ...
- 279
1
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1
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478
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How can I read an array of values from the ADC through a single channel on an STM32 (Nucleo F401RE)?
I am trying to work with the TCD1304DG Linear Array (CCD) sensor. I have configured the signal timings perfectly, as shown in the datasheet. Here is an image from the datasheet of the necessary ...
- 95
0
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1
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291
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Battery-powered FFT project
I want to use FFT on a STM32F401C01CCU6. I chose this microcontroller because everyone says the F4 series is good at signal processing.
I want to make a project that will work with a battery; I am not ...
- 185
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1
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208
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Basic question about radar
I am learning about automotive radars and have a very basic question about them.
If two or more cars on a road have the same radar, using the same radar tech (e.g. CWFM radar) how will one car's radar ...
- 19
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2
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124
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How to handle metastable input using a microcontroller? [closed]
I have a metastability problem and I want to know how to best handle it using the C language.
The problem
I have two GPIOs that define the state of my system.
Because of the conditioning circuit, they ...
- 721
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3
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781
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How to modulate the amplitude of a square wave at high speed (MHz)?
I want to build a modulator for driving a laser. I want the laser to produce square pulses with varying amplitudes. Hence I built a 1 MHz square wave oscillator (relaxation oscillator with an opamp.) ...
- 23
0
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1
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168
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AX5043 RF XCVR, problem making the automatic frequency control work in GMSK
I am working with the AX5043 RF transceiver from OnSemi.
I am using GMSK, and I am unable to make the automatic frequency control (AFC) work properly.
I am using a bitrate of 2400 bps. To be sure to ...
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-2
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1
answer
376
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How to detect dog bark? [closed]
I need to design a small dog bark detector. It should be as cheap as possible (10$ manufactured unit.) It should be accurate because it can be used anywhere in noisy places.
The aproach I am ...
- 49
0
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1
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104
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Selecting a low cost, compact controller/processor for a custom sensor device [closed]
I'm a phd student in aeronautical engineering, and I'm designing a custom sensor device for my research. I've figured out the initial stage of the device, which involves converting the analog signal ...
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