Missing values for R7 and R8 on schematic (which are shown on PCB rendering)

[jondaddio]

Values for 0402 resistors are not shown on the schematic for R7 and R8 (which are shown on PCB rendering). Did I miss something ??

[jondaddio]

Correction: Values for 0402 resistors R8 and R9 are missing (which are shown on the Xiao RP2040 Level Translator PCB rendering). My apologies for stating the incorrect resistors.

[xyphro]

Dear Jondaddio, can you point me to the source of where you saw R8 and R9? I'd like to fix this.

I cannot see R8/9 in this schematic:

[jondaddio]

Sure, and I updated my comment to say the 0402-sized R8 / R9 are not specified nor shown on the I³C Blaster schematic (after I mistakenly said R7 / R8), but they are shown on the Xiao RP2040 Level Translator PCB. (On the schematic I see R1-7 and R10, but no R8 or R9) Attached are the Gerber PCB images from the Osh Park PCB fabricator in Oregon based on your Gerber files. The top view shows R8 / R9. And thanks for a very interesting presentation on the I³C Blaster at the Elektor webinar on 30 Oct !! (And I am a novice with MIPI and I²C.) Cheers, Jon Jackson

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On Sat, Nov 1, 2025 at 5:04 PM xyphro ***@***.***> wrote: *xyphro* left a comment (xyphro/I3CBlaster#7) <#7 (comment)> Dear Jondaddio, can you point me to the source of where you saw R8 and R9? I'd like to fix this. I cannot see R8/9 in this schematic: image.png (view on web) <https://github.com/user-attachments/assets/7f60ae39-f584-4ee2-9bf0-a6de15c00b4d> — Reply to this email directly, view it on GitHub <#7 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADYCEMEBC5DMZDYSLZZ27D332U4ADAVCNFSM6AAAAACK34WUYOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTINZWHE2DGMJXHA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[xyphro]

Thanks so much Jon for raising this!

The gerber files were not current. In case you produced the PCBs already: R8/9 are "do not mount".

Otherwise pick the updated gerbers - just pushed them to the repository.

[jondaddio]

Copy that. I did order boards from Osh Park ($3.60 for 3), but not expensive. R8 / R9 are DO NOT MOUNT. Thanks, Jon

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On Sun, Nov 2, 2025 at 2:58 AM xyphro ***@***.***> wrote: *xyphro* left a comment (xyphro/I3CBlaster#7) <#7 (comment)> Thanks so much Jon for raising this! The gerber files were not current. In case you produced the PCBs already: R8/9 are "do not mount". Otherwise pick the updated gerbers - just pushed them to the repository. — Reply to this email directly, view it on GitHub <#7 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADYCEMABOVM42FHPVH5YFY332XITRAVCNFSM6AAAAACK34WUYOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTINZXHAYTKMBZG4> . You are receiving this because you authored the thread.Message ID: ***@***.***>