ds1620 temp sensor problem
I am useing the DS1620 to read some tempatures on some mosfets, so I will not blow up the mosfets.
I have the DS1620 working perfect in my bread board, but when I move it any distance away from the bread board via jumper wires about 24 inches long it will no longer work. I tried putting a 500 ohm in place of the 1000ohm but it made no difference.
I walked through all the wires very carefuly and the only difference of working and not working is the leanght of wires between the propellor chip and the DS1620
I'm a beginner programer, and I haven't a clue why this is happening. The leanght of wire is has never affected anything else I have worked on.
Thanks
I have the DS1620 working perfect in my bread board, but when I move it any distance away from the bread board via jumper wires about 24 inches long it will no longer work. I tried putting a 500 ohm in place of the 1000ohm but it made no difference.
I walked through all the wires very carefuly and the only difference of working and not working is the leanght of wires between the propellor chip and the DS1620
I'm a beginner programer, and I haven't a clue why this is happening. The leanght of wire is has never affected anything else I have worked on.
Thanks
Comments
the spec sheet said it was fine to run the DS1620 with 5 volts.
Why would it work at 5v close to the propellor but not far away? and why will it work close or far away from the propellor at 3.3v
The DS1620 is an SPI device. Franklin, it is the DS1820 that is one-wire.