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Homemade counter - to to interface to PyRadmon
- switchingpower
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9 years 8 months ago #977
by switchingpower
Homemade counter - to to interface to PyRadmon was created by switchingpower
Hello,
New to the forum
I have a SBM19 based counter that currently connects to a Pi via a GPIO Pin - whats the input for PyRadmon? Any signal conditioning ? My counter outputs a 85us positive pulse width 0 to +3 volt square wave - will this work?
Thanks for any help
New to the forum
I have a SBM19 based counter that currently connects to a Pi via a GPIO Pin - whats the input for PyRadmon? Any signal conditioning ? My counter outputs a 85us positive pulse width 0 to +3 volt square wave - will this work?
Thanks for any help
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9 years 8 months ago #979
by mw0uzo
Replied by mw0uzo on topic Homemade counter - to to interface to PyRadmon
Hi switching power, welcome to the forums!
I think pyradmon supports serial and audio method at the moment. A modification for GPIO should be easy. Thimo should be able to help, particularly if you give him the single line of code required (and possibly the library to include) to read the pin of GPIO.
I think pyradmon supports serial and audio method at the moment. A modification for GPIO should be easy. Thimo should be able to help, particularly if you give him the single line of code required (and possibly the library to include) to read the pin of GPIO.
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9 years 8 months ago #980
by mw0uzo
Replied by mw0uzo on topic Homemade counter - to to interface to PyRadmon
Would you like to register for data submission? PM me a unique, unimportant password or alternatively I can give you a random one.
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9 years 8 months ago - 9 years 8 months ago #982
by Vinkx
Replied by Vinkx on topic Homemade counter - to to interface to PyRadmon
The pulse from my counter is a negative (low) pulse about 70us.
To catch a 85us pulse in python you probably will have to work with a interrupt. Otherwise you risk missing pulses.
I decided not to use pyradmon because i already had my PI counting and logging on its own with a C++ program, but i did came acros this example wich should be easy to adapt.
Its for a button press , but it should also work for a pulse from the counter.
The eventhandler in this example is called "buttonEventHandler" but that is just a name, you can rename that to "pulseEventHandler" for clarity.
http://raspberrywebserver.com/gpio/using-interrupt-driven-gpio.html
To catch a 85us pulse in python you probably will have to work with a interrupt. Otherwise you risk missing pulses.
I decided not to use pyradmon because i already had my PI counting and logging on its own with a C++ program, but i did came acros this example wich should be easy to adapt.
Its for a button press , but it should also work for a pulse from the counter.
The eventhandler in this example is called "buttonEventHandler" but that is just a name, you can rename that to "pulseEventHandler" for clarity.
http://raspberrywebserver.com/gpio/using-interrupt-driven-gpio.html
Last edit: 9 years 8 months ago by Vinkx.
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9 years 8 months ago #986
by switchingpower
Replied by switchingpower on topic Homemade counter - to to interface to PyRadmon
thanks -
Will give it a try
Will give it a try
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