warn during warmup
authorgregor herrmann <gregor@toastfreeware.priv.at>
Wed, 28 Oct 2020 15:35:14 +0000 (16:35 +0100)
committergregor herrmann <gregor@toastfreeware.priv.at>
Wed, 28 Oct 2020 15:35:14 +0000 (16:35 +0100)
commita51d525b75ead2c23ef83795d8ff60b76796d72c
tree9bd01286c07493947e648dcf8231fef1b4816486
parent1f5486cee5108ba5b34915864cd72ee8415e2149
warn during warmup

output a warning '(W)' after the co2 value during the first minute,
if the value is -1 or 410 which seems to happen each time after powering the
board on for a couple of measurements.
airingbutler.ino