No of I/O pins available on Pi 5
- Ian@eagland.co.uk
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07 Oct 2024 18:20 #311509
by Ian@eagland.co.uk
No of I/O pins available on Pi 5 was created by Ian@eagland.co.uk
Hi
Background information.
I have 3 CNC mchines using PC contollers. All step and direction axis drivers.
2 with Ahha software using the Ahha ISA slot driver boards, a lathe and a mill.
The third is a 3 axis pcb mill using Linux CNC with PC parallel port.
I have a proble with failing PC's.
The Pi 5 would seem to be a good solution.
The machine that was using Linuc CNC looks fairly straight forward with with a HAT and a standard breakout board.
The other 2 look to be more complex as they have a more I/O than a parallel port has. I am thinking through the options.
How many input and output pins on the Pi gpio are available using the LinuxCNC Pi 5 image? Is there a list of the available pins?
It may be less work to make a custom HAT to mimic the Ahha driver outputs than having to rewire the machines as they have a 24 volt wiring and in the case of the mill is a large substantial industrial machine.
regards
Ian
Background information.
I have 3 CNC mchines using PC contollers. All step and direction axis drivers.
2 with Ahha software using the Ahha ISA slot driver boards, a lathe and a mill.
The third is a 3 axis pcb mill using Linux CNC with PC parallel port.
I have a proble with failing PC's.
The Pi 5 would seem to be a good solution.
The machine that was using Linuc CNC looks fairly straight forward with with a HAT and a standard breakout board.
The other 2 look to be more complex as they have a more I/O than a parallel port has. I am thinking through the options.
How many input and output pins on the Pi gpio are available using the LinuxCNC Pi 5 image? Is there a list of the available pins?
It may be less work to make a custom HAT to mimic the Ahha driver outputs than having to rewire the machines as they have a 24 volt wiring and in the case of the mill is a large substantial industrial machine.
regards
Ian
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- tommylight
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10 Oct 2024 22:38 #311782
by tommylight
Replied by tommylight on topic No of I/O pins available on Pi 5
26 to 28 depending on who you ask
www.google.com/search?client=firefox-b-l...+number+of+usable+io
I like parallel port, i do not like RPI, so here is my take:
-use HP Z200 or Z210 old workstations, they have a parallel port header, built like a tank and never fail
-Some Dell 980 something or another have built in parallel ports, the "tower" version only
-HP 800 or older 8000 series small form with PCI-E port with add on parallel port cards
-On the big ones you can put 2 or more parallel port cards for more IO
-Mesa 7i92T, connects to PC through EtherNET so easy to find PC's, can do 34 IO pins at very, very high speeds so you can use more microstepping on your drives for much smoother motion and less vibrations
-Mesa 7i96S, has headers for everything, EtherNET, very fast, and can also do a parallel port at very high speeds.
www.google.com/search?client=firefox-b-l...+number+of+usable+io
I like parallel port, i do not like RPI, so here is my take:
-use HP Z200 or Z210 old workstations, they have a parallel port header, built like a tank and never fail
-Some Dell 980 something or another have built in parallel ports, the "tower" version only
-HP 800 or older 8000 series small form with PCI-E port with add on parallel port cards
-On the big ones you can put 2 or more parallel port cards for more IO
-Mesa 7i92T, connects to PC through EtherNET so easy to find PC's, can do 34 IO pins at very, very high speeds so you can use more microstepping on your drives for much smoother motion and less vibrations
-Mesa 7i96S, has headers for everything, EtherNET, very fast, and can also do a parallel port at very high speeds.
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- Ian@eagland.co.uk
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13 Oct 2024 09:21 #311942
by Ian@eagland.co.uk
Replied by Ian@eagland.co.uk on topic No of I/O pins available on Pi 5
Many thanks. Mesa through ethernet is clearly a much better solution as it will only require minimal wiring to a 37way breakout board to connect to my existing system. As I have a Pi 5 I will use that initially to set everything up and then consider the options. Out of interest what do you not like about the RPi?
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- tommylight
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13 Oct 2024 12:03 #311954
by tommylight
Replied by tommylight on topic No of I/O pins available on Pi 5
Back in the RPI3 days, it was to weak for some stuff, then RPI5 came out and a mess ensued with 7 versions of hardware and missing drivers and SPI still does not work.
Then the price went to over 180$.
Then the price went to over 180$.
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- timo
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16 Oct 2024 11:17 #312237
by timo
Replied by timo on topic No of I/O pins available on Pi 5
The Pi seems to have become cheaper after beeing unrealistic expensive. Small mini PCs with N100 CPU cost in the same ballpark. Is there any downside to them?
(assuming they work at all)
7i95 connected to IntelNuc was not working at all. I could not get the thing to install the Linux.
Then there was a new release (I think it was 2.9.1) with this updated ISOimage all went smooth. (O.K. O.K: Yes, No, skip... done!)
Real Endconsumer Style Install.
I bought some uptech Parallel adapters a while ago. They worked sort of.
Trying to get a "high" ppr (100 ppr) Encoder to work was not going to happen and frustration. (with 6i25 it was self-solving)
(assuming they work at all)
7i95 connected to IntelNuc was not working at all. I could not get the thing to install the Linux.
Then there was a new release (I think it was 2.9.1) with this updated ISOimage all went smooth. (O.K. O.K: Yes, No, skip... done!)
Real Endconsumer Style Install.
I bought some uptech Parallel adapters a while ago. They worked sort of.
Trying to get a "high" ppr (100 ppr) Encoder to work was not going to happen and frustration. (with 6i25 it was self-solving)
The following user(s) said Thank You: tommylight
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