I saw a comment on Hackaday by someone who uses 25 Pis (all running node-red) on a manufacturing line 24/7, producing ~60K parts a day. Another commenter talked about a setup involving 100 or so Pis on shop floor. Lots of people using pi+node-red combination for all sorts of things. Looks like one can work around Pi's shortcomings if there is a real app!
Something like node-red would be a fun project for plan9. With a graph editor as a frontend - I suspect sure such a thing doesn't exist for plan9. https://www.youtube.com/watch?v=GeN7g4bdHiM https://en.wikipedia.org/wiki/Node-RED https://nodered.org/ > On Nov 22, 2020, at 2:48 AM, hiro <23h...@gmail.com> wrote: > > i should not have said anything > > [11561053.235151] xhci_hcd 0000:01:00.0: @000000001ed0c6e0 00000000 > 00000000 0e000000 02048000 > [11572206.218075] Under-voltage detected! (0x00050005) > [11572207.738154] bcmgenet fd580000.genet eth0: Link is Down > [11572211.898285] bcmgenet fd580000.genet eth0: Link is Up - > 1Gbps/Full - flow control off > [11572212.458226] Voltage normalised (0x00000000) > [11585621.202242] xhci_hcd 0000:01:00.0: ERROR Transfer event for > disabled endpoint slot 2 ep 3 > > gonna move back to my seagate dockstar (kirkwood) for this thing :( > at least then the rpi is free for a stateless 9front terminal again > (easier to reboot when there's problems like the above :() > > On 11/14/20, hiro <23h...@gmail.com <mailto:23h...@gmail.com>> wrote: >> well they have FCC compliance, so i'd hope it's just internal >> interference due to lack of rf separation on the board. unless the fcc >> test is so busted that they were able to activate a less-problematic >> pixel clock and never tried the full possible range? :D >> >> since i don't have a github account i don't think they will listen to >> me about my issues with the device. >> >> but anyway they should hire an RF engineer and not me. if they tried >> the common combinations at all they should have noticed themselves, no >> ? >> >> i have been using 4k@60hz when i experienced my problem, bluetooth >> cannot be switched to 5ghz. >> >> i'm just happy it works at all, i was just gonna return it otherwise >> like i did with the earlier rpi version. don't have time to make >> bug-wishlists for future raspberry christmas trees (took them 8 years >> already to make the first rpi with working ethernet+usb). >> >> On 11/14/20, Bakul Shah <ba...@iitbombay.org> wrote: >>> There were reports of 2560x1440 res generating RF noise in the 2.4GHz >>> band >>> wifi channel 1. The proposed solution (by Eben Upton) was to use channel >>> 4 >>> or higher or use 5GHz wifi band at this res. And supposedly there is a >>> firmware fix for this. No idea about the bluetooth issue. You should >>> report >>> these issues either on their forum or one of their github repos. >>> >>>> On Nov 14, 2020, at 7:14 AM, hiro <23h...@gmail.com> wrote: >>>> >>>> well, for me hdmi reliably stops working when i turn on the bluetooth >>>> keyboard and versa. >>>> clearly RF interference was none of their concern when they made this >>>> chip. >>>> if your monitor suggests a different pixel clock you might get lucky >>>> and it's just good enough, but your signal quality is gonna suffer no >>>> matter what > > ------------------------------------------ > 9fans: 9fans > Permalink: > https://9fans.topicbox.com/groups/9fans/Te91377223453b8c0-M3206bd878f444f406e0fb927 > > <https://9fans.topicbox.com/groups/9fans/Te91377223453b8c0-M3206bd878f444f406e0fb927> > Delivery options: https://9fans.topicbox.com/groups/9fans/subscription > <https://9fans.topicbox.com/groups/9fans/subscription> ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T44e63b084a86351b-Md515e2e941ef3e09ff71e1ff Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
