DS18B20 not working in WiPy 2.0

[ColombianAus]

Hello There

I have copied and paste following code

from machine import Pin
from ds18x20 import DS18X20
d=DS18X20(Pin((Pin.exp_board.G23, mode=Pin.OUT)))
result=d.read_temps()
print(result)

The only difference is that I am using the WyPy expansion board. it throwing following error in Atom

Traceback (most recent call last):
File "<stdin>", line 28
SyntaxError: invalid syntax

Line 28 is

result=d.read_temps()

any ideas?

Cheers
Colombian1976

[livius]

@colombianaus said in DS18B20 not working in WiPy 2.0:

d=DS18X20(Pin.exp_board.G23, mode=Pin.OUT)

now you miss Pin class...
d=DS18X20(Pin(Pin.exp_board.G23, mode=Pin.OUT))

[ColombianAus]

@seb

hey mate,...

OK so all code below, but as you can notice first 24 lines are commented. Furthermore, I have deleted extra parentheses for the line

d=DS18X20(Pin.exp_board.G23, mode=Pin.OUT)

it now throws following error:

Traceback (most recent call last):
File "<stdin>", line 28, in <module>
TypeError: function does not take keyword arguments

line 28 is

result=d.read_temps()

"""
import time
from machine import Pin
import onewire, ds18x20

the device is on GPIO23, expansion board

dat = Pin(Pin.exp_board.G23, mode=Pin.OUT)

create the onewire object

ds = ds18x20.DS18X20(onewire.OneWire(dat))

scan for devices on the bus

roms = ds.scan()
print('found devices:', roms)

loop 10 times and print all temperatures

for i in range(10):
print('temperatures:', end=' ')
ds.convert_temp()
time.sleep_ms(750)
for rom in roms:
print(ds.read_temp(rom), end=' ')
print()
"""
from machine import Pin
from ds18x20 import DS18X20
d=DS18X20(Pin.exp_board.G23, mode=Pin.OUT)
result=d.read_temps()
print(result)

Thank you for your assistance mate

Cheers
Wilson

[seb]

First thing I notice is that you are passing Pin a tuple:

(Pin.exp_board.G23, mode=Pin.OUT)

I think you have used one too many pairs of parentheses.

Secondly, can you share all your code? because the code you posted is only 5 lines long but the error says line 28