docs(bom): warn against the similar but incompatible Adafruit 2472 BNO055 board - #641
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…O055 board The BOM's IMU link goes to the correct Adafruit 4646 breakout, but Adafruit also sells the older non-STEMMA-QT BNO055 breakout (product 2472). It looks nearly identical and its data pins are in a different order, so it does not work on the PiFinder hat. A couple of builders have been caught out, so add a note to the line item. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011LjVuC4YMM5FGMRaeLh8q1
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011LjVuC4YMM5FGMRaeLh8q1
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…O055 board (#641) * docs(bom): warn against the similar but incompatible Adafruit 2472 BNO055 board The BOM's IMU link goes to the correct Adafruit 4646 breakout, but Adafruit also sells the older non-STEMMA-QT BNO055 breakout (product 2472). It looks nearly identical and its data pins are in a different order, so it does not work on the PiFinder hat. A couple of builders have been caught out, so add a note to the line item. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011LjVuC4YMM5FGMRaeLh8q1 * docs(bom): flag the IMU item cell with a bold pointer to its note Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011LjVuC4YMM5FGMRaeLh8q1 --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
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Summary
The DIY BOM's IMU line links to the correct part, the Adafruit BNO055 STEMMA QT breakout (product 4646). Adafruit also sells the older BNO055 breakout (product 2472), which looks nearly identical but has its data pins in a different order, so it does not work on the PiFinder hat. This has caught a couple of builders out (see the wrong-IMU item under "Test the IMU" in the dev guide).
This adds a note to the IMU line item in
BOM.rsttelling builders to order the 4646 exactly and why the 2472 does not work.Verification
sphinx -b html -n -qbuilds clean (zero warnings) with the change.🤖 Generated with Claude Code
https://claude.ai/code/session_011LjVuC4YMM5FGMRaeLh8q1