Using a 28x1
I want to read a bank of 8 DS18B20 's. I see they pull 4 ma each.
If I ganged all the Vss together I would be pulling 32 ma I assume.
Can I tie this directly to the Vdd +5v and have it not affect the Picaxe 20ma requirement?
I would leave it on all the time.
The alternative would be to assign an output pin to each sensor and turn them on and off sequentially. But then I would not have any more output pins left.
I am using this as a model:
http://www.anotherurl.com/therm/schematic.htm
Thanks
Steve
I want to read a bank of 8 DS18B20 's. I see they pull 4 ma each.
If I ganged all the Vss together I would be pulling 32 ma I assume.
Can I tie this directly to the Vdd +5v and have it not affect the Picaxe 20ma requirement?
I would leave it on all the time.
The alternative would be to assign an output pin to each sensor and turn them on and off sequentially. But then I would not have any more output pins left.
I am using this as a model:
http://www.anotherurl.com/therm/schematic.htm
Thanks
Steve