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drivers/onewire/ds18x20.py: Add support for DS1822 sensor.

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DS1822P sensors behave just like the DS18B20 except for the following:
- it has a different family code: 0x22
- it has only the GND and DQ pins connected, it uses parasitic power from
  the data line

Contributed by @nebelgrau77.
This commit is contained in:
Damien George 2019-10-16 14:27:01 +11:00
parent 615d6b3c66
commit 5954387858
1 changed files with 1 additions and 1 deletions
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2
drivers/onewire/ds18x20.py
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@ -13,7 +13,7 @@ class DS18X20:
self.buf = bytearray(9) self.buf = bytearray(9)
def scan(self): def scan(self):
return [rom for rom in self.ow.scan() if rom[0] == 0x10 or rom[0] == 0x28] return [rom for rom in self.ow.scan() if rom[0] in (0x10, 0x22, 0x28)]
def convert_temp(self): def convert_temp(self):
self.ow.reset(True) self.ow.reset(True)