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docs(bench): add the 2026-11-05 analog-input record - #115
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Adds the 2026-11-05 bench record for step 2 of #106 (#114), on a gen1 Nano running gen1_nano_analog1 from main at b77311c. Passed: - GET_CAPS: level 1, flags 0x15E3. GET_INPUTS: valid 0x03, 10 bits, port 2 not reported. - 3.3 V on port 1 terminal B read 665-666 counts with a 5.0x V supply. Terminal A tied to GND read 0 while B held at 665. - Motor 2 open loop at PWM 150, then -255 and +255: 32 reads, p1a 0-0 and p1b 665-665. No failed reads and no lease trips. - A turbidity head (SEN0189 adapter) on terminal B, 20 reads each, all within one count: | sample | p1b mean | | --- | --- | | clear DI | 848.5 (4.14 V) | | 100 mg/L kaolin | 805.6 | | 5 g/L kaolin | 119.8 | Air read 718, and blocking the gap took it to 4. Finding: the first test voltage went to the header silked ENC 1. On gen1 that header is firmware port 2, which this build doesn't read; the mismatch is already in docs/hardware-revisions.md. Not checked: the gen2 Nano Every builds, port 2 as analog, and encoder counts per turn with the reader running.
T7: the head in the 10 g/L kaolin stock read 51-52 counts (mean 52.0, 0.25 V) over 20 reads, below 5 g/L and above the 4-count floor with the gap blocked.
…cord The readings hold for one configuration: a TST-10-type head in its stock housing on a DFRobot SEN0189 adapter. Another adapter, a modified one, or the head in a different housing reads differently, so the record says which was used.
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Adds the 2026-11-05 bench record for step 2 of #106 (#114), on a gen1
Nano running gen1_nano_analog1 from main at b77311c.
Passed:
GET_CAPS: level 1, flags 0x15E3. GET_INPUTS: valid 0x03, 10 bits,
port 2 not reported.
3.3 V on port 1 terminal B read 665-666 counts with a 5.0x V supply.
Terminal A tied to GND read 0 while B held at 665.
Motor 2 open loop at PWM 150, then -255 and +255: 32 reads, p1a 0-0
and p1b 665-665. No failed reads and no lease trips.
A TST-10-type turbidity head in its stock housing, on a DFRobot
SEN0189 adapter, on terminal B. 20 reads each, all within one count:
Air read 718, and blocking the gap took it to 4.
Finding: the first test voltage went to the header silked ENC 1. On
gen1 that header is firmware port 2, which this build doesn't read; the
mismatch is already in docs/hardware-revisions.md.
Not checked: the gen2 Nano Every builds, port 2 as analog, and encoder
counts per turn with the reader running.