nhale

Hi,

 

as my digital pins are nearly all in use, I asked myself if there is a possibility to connect a pushbutton like this one (http://www.conrad.co...product/706140/) [font="arial, helvetica, sans-serif;"]to the Analog pins?[/font]

 

Is this possible via the analog pins and if yes, is there some kind of tutorial how to do it with the analog pins?

Is there some restriction in the cable length between button and pin? Do I need additional resistors or something like that? (sorry I'm no electronics guy ;-))

 

Thanks in advance.

Hi salim,

 

there is a difference of the ports/pins and the Micro-USB connector on the board.

 

- Pins + Ethernet ==> You can use in your application and write code to use them e.g. SerialPort...

- Micro-USB ==> Only usable for deploying and debugging your app. This is what you have to select in the project properties in the drop down.

 

In the project properties the "serial" menuitem is because the .NET Micro Framework can be used for different types of devices and some only have a RS-232 connector instead of USB.

 

 

Regarding the problem with the references, I think you are new to Visual Studio, you should maybe start to write a simple Windows console application, to get familiar with Visual Studios features and funtions and debugging. With Google you should find some basic tutorials. Then programming for the Netduino is easier and makes more fun.

Hi,
for me as a programmer a strange problem, but today I tried everything with a 9V block battery and now the LED on the GPS receiver is blinking...even inside - but as soon as I plugin the USB cable or only try it using the USB cable no fix is being found...
If it really expects about 9V I would expects some kind of error and not the invalid NMEA results.

Thanks

Hi,

I build the Adafruit Kit with the EM-406A based on this tutorial by Bob Cravens.
Then just ran the code from above (post #5).
But even after walking around about 30 minutes outside with blue sky and no clouds, I still not get a fix.
Does anyone has an idea what the problem could be or how I can debug the possible problem (I'm a programmer not electrician)

Powering on and off the GPS module works fine when switching Pins.GPIO_PIN_D2 from 'false' to 'true' and back. The LED on the GPS receiver gets red(on) or is off(off). I read in other posts, that it will start blinking as soon as it got a fix...but never saw that ;-(

Connection is TX ==> D0; RX ==> D1; PWR ==> D2

As sample output with the program above looks like this.
According to the this reference NMEA sentence info I interpreted my output like this:

• No fix available ($GPRMC,000117.056,V,...)
• and no satellites found ($GPGSA,A,1,...)

$PSRFTXT,Version:GSW3.5.0_3.5.00.00-SDK-3EP2.01 *46
$PSRFTXT,Version2:F-GPS-03-1006231*2A
$PSRFTXT,WAAS Enable*66
$PSRFTXT,TOW:  0*25
$PSRFTXT,WK:   1519*69
$PSRFTXT,POS:  6378137 0 0*2A
$PSRFTXT,CLK:  96250*25
$PSRFTXT,CHNL: 12*73
$PSRFTXT,Baud rate: 4800*65

$GPRMC,000117.056,V,,,,,,,150209,,,N*46
$GPGGA,000118.045,,,,,0,00,,,M,0.0,M,,0000*5F
$GPGSA,A,1,,,,,,,,,,,,,,,*1E$
GPRMC,000118.045,V,,,,,,,150209,,,N*4B

$GPGGA,000119.048,,,,,0,00,,,M,0.0,M,,0000*53
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPRMC,000119.048,V,,,,,,,150209,,,N*47

$GPGGA,000120.056,,,,,0,00,,,M,0.0,M,,0000*56
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPGSV,1,1,00*79
$GPRMC,000120.056,V,,,,,,,150209,,,N*42

$GPGGA,000121.045,,,,,0,00,,,M,0.0,M,,0000*55
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPRMC,000121.045,V,,,,,,,150209,,,N*41

and so on.....