alema/usbc_soldering_iron
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compare: alema:de372c220554cf67c4cf99918d53bacb006b168e
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alema:external-handle
alema:master
alema:different-filter
alema:nofilter
alema:nodriver
alema:high-pmos
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2 Commits
abb5694203 ... de372c2205

Author SHA1 Message Date
Alessandro Mauri
de372c2205 note in LUT comment 2026-05-29 21:10:41 +02:00
Alessandro Mauri
b55c8dd180 lower tolerance in ntc pullup 2026-05-29 21:10:13 +02:00
2 changed files with 3 additions and 2 deletions
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3
fw/main.c
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@ -15,7 +15,8 @@
// constants
// LUT for converting NTC readings to degrees celsius
// Nominal: 1kOhm, Beta: 3380, Step: 64
// Nominal: 10kOhm, Beta: 3380, Step: 64
// TODO: Add a fixed offset to account for toollerances
const uint8_t ntc_step_size = 64;
const int16_t ntc_lut[] = {
1316, 197, 155, 133, 119, 108, 100, 93, 87, 82, 77, 73, 69, 66, 63, 60,

2
hw/usbc_soldering_iron.kicad_sch
View File

@ -22158,7 +22158,7 @@
(justify left)
)
)
(property "Value" "10k"
(property "Value" "10k 0.1%"
(at 87.376 212.09 0)
(show_name no)
(do_not_autoplace no)