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glossary: Follow Me readback rounds, control uses the half step - #16

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Oct 27, 2026
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Notes a live finding on indoor_temperature and the temp_follow_me encoding: with Follow Me active, the C0 readback is a whole degree, but the unit regulates on the half-degree value sent in 0x41 body[5].

Evidence: step test 2026-10-26 (source stepped 22.0 / 21.5 / 21.0 / 20.0 / 22.0 / 23.0 °C). A 21.5 °C source moved the control error by 0.5 K while the readback showed 22.0 °C. All 4266 one-minute samples under Follow Me from 2026-10-22 to 2026-10-26 were whole degrees.

Notes only, no decode change. Core tests and the excluded-script runner pass.

🤖 Generated with Claude Code

…half step

A live step test on 2026-10-26 showed the C0 indoor_temperature readback
is a whole degree while Follow Me is active, but a 21.5 °C source moved
the control error by 0.5 K. Note it on indoor_temperature and on the
temp_follow_me encoding so nobody infers the regulated value from the
readback.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@fabcoded
fabcoded merged commit d182e8a into main Oct 27, 2026
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fabcoded deleted the docs/follow-me-readback-rounding branch October 27, 2026 22:08
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