Netduino home hardware projects downloads community

Jump to content


The Netduino forums have been replaced by new forums at community.wildernesslabs.co. This site has been preserved for archival purposes only and the ability to make new accounts or posts has been turned off.

apokryphus

Member Since 02 Feb 2013
Offline Last Active Apr 30 2014 01:54 PM
-----

Topics I've Started

External Oscillator on N+2

25 December 2013 - 04:03 PM

Hi, am I right, to suppose that a 25MHz Crystal (like the schematic is showin) is used as an external Oscillator? Regards

RTC and Netduino+2

13 August 2013 - 08:21 AM

Hello everybody,

 

i would like to know, if it is possible - just like on the stm32f4 dicovery - to use the internal RTC with the Internal RC-Oszillator?

 

In would like to do this in c/c++ because it besomes very easy now to write and flash c-code to the netduino since visualgdb is supporting the STM32F4 familiy.... For flashing i use the stlink V2 ....

 

 

Thank you very much.


AnalogInput Crosstalk?

07 March 2013 - 10:09 AM

Hello,

 

i figured out some weird behaviour on the analog ports.

I have  attached two different kind of analog sensors/devices, one resistive pressure sensor and one potentionmeter, to my netduino 2 plus. both are fired up with 3.3V. But now, when i turning the pot. to the limit of 3.3V (1023) the digital output on the other analog ports are also raising.

 

is this a common bug or does it depend on my low-level-circuit/sensors?

 

thanks in advance

 

here is some output:

 

Temperatur: 23
ADC-Twist: 1021
Weight: 1019
 
vs.
 
Temperatur: 23
ADC-Twist: 0
Weight: 1003

 

EDIT:

Adding some capacitors (10nF) does solve the problem of crosstalk,

this maybe could be a hint for rev.B of the board...


home    hardware    projects    downloads    community    where to buy    contact Copyright © 2016 Wilderness Labs Inc.  |  Legal   |   CC BY-SA
This webpage is licensed under a Creative Commons Attribution-ShareAlike License.