ESP32/S2/S3 LinuxCNC Controller (6 axis hardware step gen), USB plug-and-play
29 Nov 2024 19:09 #315575
by tommylight
Replied by tommylight on topic ESP32/S2/S3 LinuxCNC Controller (6 axis hardware step gen), USB plug-and-play
P4 was not found on amazon.de so S3 it was.
Had a play with this earlier today, Wez's version fails to set networking for some reason on ESP32wroom module, the other version someone linked here does work but suffers from random reboot loops, a lot.
I am after something else here, use an ESP32 as it has 12 bit ADC to measure the arc voltage and turn the torch on, mounted on the plasma source, and another module connected to PC to translate those voltage values to pulses with variable frequency.
Should be doable and have good enough latency for about 50-150 updates per second. It they survive the EMI
Had a play with this earlier today, Wez's version fails to set networking for some reason on ESP32wroom module, the other version someone linked here does work but suffers from random reboot loops, a lot.
I am after something else here, use an ESP32 as it has 12 bit ADC to measure the arc voltage and turn the torch on, mounted on the plasma source, and another module connected to PC to translate those voltage values to pulses with variable frequency.
Should be doable and have good enough latency for about 50-150 updates per second. It they survive the EMI
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29 Nov 2024 19:19 - 29 Nov 2024 19:39 #315579
by Mecanix
Replied by Mecanix on topic ESP32/S2/S3 LinuxCNC Controller (6 axis hardware step gen), USB plug-and-play
S3 cores ran on the 240meg and compiled -o2 is pleeeenty sufficient (my fav silicon of them all in fact). The P4 is very much overkill here, but hey, who doesn't like overkill anything lol ps.150hz is nothing for a S3. That makes both the S3 and P4 overkill in that sense 
On the MCU Motion Control rant; and If I'd be any of you MCU experts, I'd get a RMT based driver working on 1 (one) motor to begin with, and before doing/coding anything else, have that comm and feedback 110% reliably with the Lcnc comm driver **mutex'ed**.
Once that's sold and a certainty, move to the next step (channel array!)
On the MCU Motion Control rant; and If I'd be any of you MCU experts, I'd get a RMT based driver working on 1 (one) motor to begin with, and before doing/coding anything else, have that comm and feedback 110% reliably with the Lcnc comm driver **mutex'ed**.
Once that's sold and a certainty, move to the next step (channel array!)
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30 Nov 2024 14:06 #315651
by Mecanix
All the best to you & family. And be safe in that shop!!
Replied by Mecanix on topic ESP32/S2/S3 LinuxCNC Controller (6 axis hardware step gen), USB plug-and-play
Nah, not my channel, got none of that online exposure, maybe one day but I doubt that. Same reason as yours, so little time for those sort of thingsRMT will have to wait, limited time, but lately i am stuck at home/shops so maybe...
All the best to you & family. And be safe in that shop!!
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30 Nov 2024 16:29 #315659
by tommylight
Replied by tommylight on topic ESP32/S2/S3 LinuxCNC Controller (6 axis hardware step gen), USB plug-and-play
Yeah, it is probably Meister's channel, sorry for the mix up.Nah, not my channel,
I just had two friends in the shop, fixing 3 PC's, all the time they were screaming at me for not recording that and putting it online as they would like to watch that again and again! I am a pedantic p.o.s when i work with PC, so i always think that would be boring as hell !...got none of that online exposure, maybe one day but I doubt that. Same reason as yours, so little time for those sort of things
Thank you very much. Been quite some time since i injured myself... aaah good timesAll the best to you & family. And be safe in that shop!!
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