bearer ,

thank you for the prompt confirmation. I went ahead after receiving your reply and it all works

In case anybody refers to this thread:

On JohnSL board Signal pin is connected to Z_Probe_In pin on Duet
On John SL board +/- pin is connected to +3.3V on Duet
On JohnSL board -/+ pin is connected to GND on Duet

and in the config .g file for my delta printer is the following

M558 P5 X0 Y0 Z0 H5 I1

P5 and I1 being the important varaiables

Thanks again

This is the entry I don't know how to interpret:

" If using JohnSL's trinket board: Connect its Vcc, Output and Ground pins to 3.3V, IN and GND on the Z-probe connector respectively and select mode 5. "

The 3 pins In the corner (under the rectifier ) of the John FSL board are labelled :

Signal , -/+ , +/-

Is Vcc = +/-
Output = Signal
Ground = - / +

Thanks for any help

Nurbie , I'm having similar problems .
Your solved photo shows the connections at the duet end.

What are your connections at the FSR end ?

Is red wire connected to signal on fsr board and at Duet end to Z Probe In ?

My confusion stems from this paragraph in the duet dozuki:

If using JohnSL's trinket board: Connect its Vcc, Output and Ground pins to 3.3V, IN and GND on the Z-probe connector respectively and select mode 5.

John's board does not have Vcc , Output or Ground labels on the 3 pins in the corner of the board.
They are labelled: Signal , -/+ , +/-