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52_I2C_LM75A: neue Version auf 0.125°C genau gerechnet (NXP-Sensorem)

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git-svn-id: https://svn.fhem.de/fhem/trunk@15048 2b470e98-0d58-463d-a4d8-8e2adae1ed80
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klausw 2017-09-10 21:45:38 +00:00
parent 4d666fa384
commit 3041cb6548
1 changed files with 7 additions and 3 deletions
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10
fhem/FHEM/52_I2C_LM75A.pm
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@ -196,9 +196,13 @@ sub I2C_LM75A_GetTemp ($$) {
if(($raw[0] & 0x80) > 0) { if(($raw[0] & 0x80) > 0) {
$temperature = 0xffffff00; $temperature = 0xffffff00;
} }
$temperature |= ($raw[0] & 0x7f) << 1; # $temperature |= ($raw[0] & 0x7f) << 1;
$temperature |= (($raw[1] >> 7) & 1); # $temperature |= (($raw[1] >> 7) & 1);
$temperature = $temperature / 2;
my $temperature_11_bit = ($raw[0]<<8 | $raw[1]) >> 5; # Compute 11-bit temperature output value
$temperature = ($temperature_11_bit) * 0.125; # Compute temperature in °C
# $temperature = $temperature / 2;
Log3 $hash, 5, "temperature: $temperature"; Log3 $hash, 5, "temperature: $temperature";
$temperature = sprintf( $temperature = sprintf(
'%.' . AttrVal($hash->{NAME}, 'roundTemperatureDecimal', 1) . 'f', '%.' . AttrVal($hash->{NAME}, 'roundTemperatureDecimal', 1) . 'f',