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Revision to Hardware Overview

David Crocker

 
Source files: https://github.com/T3P3/Duet/tree/master/Duet2/Duet2v1.04
 
Note: 1.04 Duet WiFi/Ethernet boards manufactured in June/July 2018 had the incorrect resistor value fitted at position R107 (10K instead of 100R). On these boards, the external reset pin on the expansion connector will not work. This can be remedied by soldering a 100R 0603 resistor on top of the existing one at position R107.
 
==== v1.03 and earlier feature diagram ====
Compared to PCB revision v1.01 it had the following changes:
 
* Changed to a Resettable VSSAresettable VSSA fuse. Now if the thermistor inputs are connected to VINVIN, the VSSA fuse should reset rahterrather than needing to be replacedreplaced.
* Added capacitors on stepper driver outputs to reduce EMI and improve protection against inductive transients.
* Changed to a Resettable VSSAresettable VSSA fuse. Now if the thermistor inputs are connected to VINVIN, the VSSA fuse should reset rahterrather than needing to be replacedreplaced.
* Added capacitors on stepper driver outputs to reduce EMI and improve protection against inductive transients.
* Added flyback diodes to the PWM fan outputs to protect against non brushless DC fans/pumps.
* Minor routing changeschanges.
* Minor routing changeschanges.
 
Source files: https://github.com/T3P3/Duet/tree/master/Duet2/Old%20versions/DuetWifiv1.02

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