Goat's Content
There have been 3 items by Goat (Search limited from 27-April 23)
#16074 COM port availability/extensibility
Posted by
on 30 July 2011 - 02:20 PM
in
Netduino 2 (and Netduino 1)
Hi all!
I am getting very excited with all this netDuino stuff and I have a list of shields that I want to buy in order to finish my project. The problem is that I want to buy 2 shields that use the COM port and at the same time use another 2 COM ports for bridging 2 devices. So, I need to have access to 4 COM ports! Is that possible? Is there any COM port extension shield for the netDuino?
#15886 Netduino - WiFi
Posted by
on 25 July 2011 - 01:05 AM
in
Project Showcase
I was just looking for something like that... Thanks for the tip!
#15742 Another COM port problem
Posted by
on 20 July 2011 - 10:32 PM
in
Netduino 2 (and Netduino 1)
Hi all!
I am a noob at netduino but have quite an expertise in C# and currently I am porting a small project that was working on my PC to the netduino. This project makes my PC communicate with a device using a Prolific USB-to-COM port; specifically, request some info and get back results. The problem is that upon compiling this 20-line code to netduino, the device I want to "talk" to does not respond. Here is some more info:
- I use the CuteDigi COM shield which uses pin 0 and pin 1 of the netduino (so COM1 is used).
- COM initialization is at 57600, 8, N, 1.
- Netduino sends the appropriate byte sequence to the device and the device does NOT answer.
- PC sends the appropriate byte sequence to the device and the device answers back.
- PC and Netduino can send info to each other when connected with no problems.
- netduino firmware version is 4.1.0.6
What am I missing here? Any help would be gladly appreciated...
PS1: The device I connect to does not respond if it gets a wrong byte sequence or, of course, if it gets no bytes at all...
PS2: Could this be voltage related? Does the netduino work on 5V signals or 3.3V signals for COM port operation?
