I note that DC wrote elsewhere:
As your Duet is revision 1.04 then it is safe to connect the sensor output directly to the Z probe IN pin. But be very careful to connect it to the IN pin on the Z probe connector, not any other pin! The IN pin will tolerate 24V, the other pins will not.
Thus the diode is not necessary?
Another thread on this topic: https://forum.duet3d.com/topic/8196/duet...
Urgh, can’t edit my comment above because > 5 minutes have passed, so will repost with changes:
Hi, it’s not obvious to me that that the 6-30V dc voltage from my inductive sensor is safe for the Duet Z_PROBE_IN input:
Connecting a Z probe
The Duet schematics are shown here but I cannot find any wiring from the Z_PROBE_IN pin into the uController (Sheet 4 does show the Z_PROBE_IN pin):
Is the Z_PROBE_IN connected somewhere to an internal pull-up inside the uController, this the schottky diode is protecting the portline?
In this case, I should note that the LOW voltage on my inductive sensor is around 0.6V when pulling low, thus 0.6V + Vsd (voltage across Schottky diode) would be around 0.9V.
Thanks in advance.
Hard to believe that is I search this forum (?) for “ubuntu putty” that it fails to find anything, yet the text is right there :-(
To make this work on Ubuntu (19.04):
Install putty terminal emulator:
sudo apt-get install putty
This alone won’t work, so set permissions for dialout and restart (or logout/login):
You need the serial port that the Duet is on:
Mine was ttyACM0 (that is t-t-y-A-C-M-zero)
Run putty, and set the “Connection type” to “Serial”, the “Serial line” to “/dev/ttyACM0", and “Speed” to “115200” and connect.
More to come…
Hi, is there a datasheet for the Pt100 sensor please?
Does the Duet have a default static IP address ? I want to connect directly to my Duet using Duet <——-> Ethernet <——-> Computer. Thanks.
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