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In Topic: LCDKeypad 16x2 HD44780 Shield
02 December 2010 - 05:12 PM
Hi Bill,
The four direction buttons + select share one analog channel and they are distinguished in code by the voltage they return. however they are using 5v supply and Netduino expects 0 - 3.3v for analog, so most of the buttons return the same value.
To make it work you could cut the track and give it a 3.3v supply or make a voltage divider to change the output voltage...i think that's it??
Shame for such a handy shield, i wonder if the fez shield is 3.3v and all the buttons work?
In Topic: Experimental Drivers for Wiznet-based Ethernet Shields
13 September 2010 - 12:56 PM
The caveat is that they used the 6-pin "ICSP" header for its digital communication--so you may need to solder the optional 2x3-pin header onto your Netduino. Not sure yet,
Chris
I had to lookup what the "ICSP" header is (its all new to me) and found that in one of your other postings that you explain that they duplicate existing pins, so maybe they are not required , If anyone has one of these shields, maybe they could tell us whether there is a socket under there in the middle which would match up with the ICSP header.
In Topic: Experimental Drivers for Wiznet-based Ethernet Shields
13 September 2010 - 07:24 AM
Excellent, time to shop again.
This project is moving so fast!
Does the DFRobot Ethernet Shield always come with an SD card holder or perhaps none?... some pictures show one, others don’t, but I can’t see any information.
Thanks, Adi
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