Questions tagged [measuring]

Use this tag if your question relates to measuring, eg., via a sensor.

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Measure input voltage of Raspberry Pi B+ running Ubuntu

I just learned that a red flashing LED indicates voltage below 4.63V on a Raspberry Pi Model B+. Thus, the Pi seems to "know" about it's input voltage. So my question is: Is there a command to ...
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Raspberrypi unable to read 2000 ppm encoder

I am using a DC motor attached with a 2000 ppm incremental encoder. I am using RPI to count the number of ticks, my code works fine but I am not able to calculate all the 2000 ticks. Any help would be ...
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Flooding another device with hping3 from RPi

My purpose with flooding another device is to see the maximum traffic that the sender can generate with the hping3: sudo hping3 --flood -d 65495 192.168.0.3 I tested it with gigabit Ethernet adaptor ...
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graph time vs frequency

I am in search of a code which can display the real time graph. I am going to display the microphone input signal in frequency vs time domain. The function that I am expecting is same as the vocal ...
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711 views

Incremental Encoder / Frequency

Can anyone help. I have a raspberrypi3 with a photoelectric sensor and a 600ppr encoder hooked up. Everything is up and running, im using pigpio to capture my pulses from the encoder and using the ...
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2answers
268 views

Pigpio belt speed encoder

I'm trying to read pulses from an encoder to measure belt speed. My encoder is 500 ppr. I have approx 2400 pulses per meter and I need to measure speeds upto 450 meters per minute. Can anyone help ...