Questions tagged [filter]
The filter tag has no usage guidance.
6
questions
4
votes
1
answer
94
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Analogue input spikes
i have a project where i read two analogue inputs from two sensors and a pro Mini. I have some spikes in my readings that are present when i'm powering the system using a powerbank step-up module. ...
- 41
2
votes
1
answer
94
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Hysteresis and scaling range
Here I asked about how to add an hysteresis on ADC readings. The answer received was very good and it worked out of the box.
Still I'm having troubles trying to generalize the resample function in ...
- 357
1
vote
1
answer
102
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Avoid 1-LSB noise on ADC readings
I have a potentiometer connected to an ADC input of an Arduino Leonardo.
The ADC resolution is 10-bit (0..1024), while I need just 7-bit (0..127).
I use a simple filter to reduce the noise and then a ...
- 357
1
vote
0
answers
41
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Need help with debugging a heartrate/filter code (the heart rate calculation does not work)
The code below is a program that aims to apply the Pans-Thompskin algorithm to a signal attained from a ECG filter. The filter seems to work alright but it fails to blink the LED and collect a correct ...
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1
vote
1
answer
470
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How should I decide the cut-off frequency for my low-pass filter?
I'm trying to generate some basic thumping stereo sound using Arduino's PWM pins along with low-pass filters.
This is the frequency spectrum for the sound I want to play using Arduino UNO's PWM pins:
...
1
vote
0
answers
70
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When I start running the Brushless motors with MPU6050 in my quadrocopter, there is a sudden spike in the data of Gyro X-axis and Gyro Y-axis
I am using the MPU6050_light library for getting the data for my quad-copter. When I am obtaining the gyro values from the MPU6050 without running the motors, its giving correct values but on running ...
- 21