Websteria,
What shield is that you have attached to your Netduino?
That's the arduino protoshield from sparkfun, with a little half length breadboard on it... Easy to assemble and useful! :-)
![]() |
  | |||||||||||||
![]() |
|
![]() |
||||||||||||
The Netduino forums have been replaced by new forums at community.wildernesslabs.co.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.
Websteria's ContentThere have been 25 items by Websteria (Search limited from 21-June 23) #1898 5mm Color Cycling LED
That's the arduino protoshield from sparkfun, with a little half length breadboard on it... Easy to assemble and useful! :-) #1419 5mm Color Cycling LED
I know a lot of people like me enjoy seeing what components do, so since I just got my order of slow color cycling 5mm LEDs I hooked them up to 5V with a 330 ohm resistor and this was the result:
http://www.youtube.c...=1&hl=en_US
#1426 5mm Color Cycling LED
I actually got the idea from an art project kit at Sparkfun, and figured it'd be more fun to make myself. Basically you wire 3 of them in paralell to a 3v battery source with an on off switch and put some paper in front of it, and you get all sorts of pretty effects just from the LEDs themselves.. #1580 AnalogInput Read() LOCKS UP NetDuino
Just trying to read some analog values, and my NetDuino is locking up the debugger when it hits the Pot0.Read() line.... This is very disturbing as I've had to HARD reset it several times by using MFDeploy to make it work again. Any ideas?
I've bolded the line that it crashes on when it gets to the code.... This is with 3.3v hooked to aref. Is my netduino broken? AnalogInput Pot0 = new AnalogInput(Pins.GPIO_PIN_A1); AnalogInput Pot1 = new AnalogInput(Pins.GPIO_PIN_A0); while (true) { [b]int Pod0val = Pot0.Read();[/b] int Pod1val = Pot1.Read(); Thread.Sleep(50); } #1586 AnalogInput Read() LOCKS UP NetDuino
That fixed it. Whew! Thank you! :-) Jeff #2095 Arduino or Netduino
My solution to that has been to use an NPN transistor and allow the "low source" signal to act as the switch to open the power to the higher voltage device. I used this (minus a netduino but same idea) to make a buzzer buzz (which requires 1.5-3v) when triggered by a motion sensor (enough output to light an LED, but not to buzz). Jeff #2104 Arduino or Netduino
Even with something as low voltage as 1.5/3v? It seems the transistor should be able to stave off the EMF, if it were a relay then yes a diode is necessary... :-) Maybe I'm wrong. #1432 Arduino to Netduino Help needed
Is there an easy way to do this? I was trying to figure out if a resistor would be enough, but it doesn't seem like it would since I don't know the current on the line... any ideas? This is where being a newbie sucks.. #1428 Arduino to Netduino Help needed
I actually just ordered one of these myself, but I'm concerned because the analog inputs go from 0 to 5V. Can the Netduino take that voltage on the A/D input ports, or do I need to step it down? #1356 Best Hobby Oscilloscope
That does look good. I've got a notification warning when it comes back into stock. Anyone have experience with the first one? #1335 Best Hobby Oscilloscope
Ok, being an electronics newbie I know I'm posting tons of questions on here. Everyone has been really nice though, so I hope that continues! :-)
I'm looking to get an oscilloscope to use with my netduino projects to analyze when issues come up.
I've seen the PC Sound card based ones, and those seem like they're not really the best idea.
I've also seen some scopes like this:
http://cgi.ebay.com/...I_Oscilloscopes
and this:
http://cgi.ebay.com/...I_Oscilloscopes
Any suggestions? I'm looking for something small, and easy to move around since I do my work in various parts of the house where I can get some space. :-)
#1249 Computer + Netduino Integration
So how did you hook this up to your serial port? Did you use a serial cable and just take the appropriate pins and wire them to the arduino? Also, would it be possible to do this via USB communication instead of Serial, or will it be? Thanks! #923 Ethernet Shield from nuelectronics
That's odd that the joystick wouldn't work. Right on the schematic at
http://www.nuelectro...ia_3310_lcd.pdf
it says
"VCC - 3.3V - 5V
All ligic I/O compatible with
5V & 3.3V logic level"
#875 LoL shield
It appears right now that a lot of the shields will work, but the drivers would need to be rewritten for the .NET MF. I'm not sure how hard this is, as I've not worked with the Arduino, but if someone writes up a tutorial I'd be happy to start doing this! #1288 More blinking leds
Syzmon, your post inspired me to get a shift register, even though I've NEVER had success with IC's before in electronics. I started out trying to just read the values off of Q0 and Q1 on the Netduino ports, but they always showed as on, even if they should have been sent as off, is this because the 5V sent to the IC is being output to the other ports? I'm using Dig Pin5 for DS, Dig Pin6 as Data, Pin7 as latch and reading values from Q0 on Pin0 and Q1 on Pin1. Thanks! My code looks like this: using System; using System.Threading; using Microsoft.SPOT; using Microsoft.SPOT.Hardware; using SecretLabs.NETMF.Hardware; using SecretLabs.NETMF.Hardware.Netduino; namespace ShiftRegister { public class Program { public static void Main() { // write your code here OutputPort DS = new OutputPort(Cpu.Pin.GPIO_Pin5, false); OutputPort StoreData = new OutputPort(Cpu.Pin.GPIO_Pin6, false); OutputPort Latch = new OutputPort(Cpu.Pin.GPIO_Pin7, true); InputPort Read1 = new InputPort(Cpu.Pin.GPIO_Pin0, false, Port.ResistorMode.Disabled); InputPort Read2 = new InputPort(Cpu.Pin.GPIO_Pin1, false, Port.ResistorMode.Disabled); //Write 1,0 then send it... // set the latch low... Latch.Write(false); //Write the 1.. DS.Write(true); StoreData.Write(true); Thread.Sleep(100); StoreData.Write(false); //Write the 0.. DS.Write(false); StoreData.Write(true); Thread.Sleep(100); StoreData.Write(false); // let er rip.. Latch.Write(true); Thread.Sleep(100); Latch.Write(false); Debug.Print("Value @ pin Q0: " + Read1.Read().ToString()); Debug.Print("Value @ pin Q1: " + Read2.Read().ToString()); } } } #1331 More blinking leds
Ok, think this should be stickied, the problem is that VS2010 will AUTOMATICALLY put the microsoft default PINS in there, which do not map up to the Netduino pins. That was my problem. Thank you so much!!!! #2091 More PWM Ports
Welcome to the community! It depends on what you need them for. If you're wanting to do LEDs, you could use a bit shifter as the ground, and the bit shifter as the power source for the LEDs, or could plug it into a NPN transistor to open up the floodgates for the power.. http://www.sparkfun....products_id=733 If you need more just for needing more not sure there's anything you can do. I've thought about using fast switching on the digital ports for PWM but havn't played with it yet... Jeff #845 Netduino and Ping))) Ultrasonic Sensor?
We really need a wiki / svn library for all of these code libraries which are compatible with the netduino!!! :-D
#1631 Netduino Controlled Servo Robot
Thank you for writing the WiiChuck driver! I was going to take a stab at this, but now I don't have to. AWESOME! Thank you SO much, you have provided so much help to us newbies. :-) #1420 Netduino Emulator
This is really awesome! The only thing I would add would be a time constant so that things which switch on and off very quickly are visible. Allow a thread.sleep time to be passed in or something. I had to modify my code to see it work, but it did work right off the bat. Very neat! #1686 OneWire ALPHA
Please implement this same change on the main firmware. I need the Analog fix in there too! :-) #2065 Power Converter? What are those things called?
I just put this one together: http://www.adafruit....products_id=184 It'll do 3.3, 5 and everything from 1-20 with an adjustment... well worth the extra $5. Jeff #1430 PWM maximum frequency
I was just playing with this getting an LED to light up and it seems like when I ramp the Duty Cycle from 0-100 then I see light change, but what happens when the values go higher? Is the range really only 1-100?
Thanks.
Jeff
#1287 Soldering Temperature for IC's, etc...
I've got a weller Soldering Iron which goes from 350 to 800 degrees farenheight (Weller WES51). It works great, but I wonder sometimes if I'm making it too hot. Before I knew what the know did (duh, it says degrees F x 10) I used to try it around 500 degrees, but it didn't seem to get hot enough to get the solder to flow within about 4/5 seconds and I was concerned about the components.
When I kick it up to 600 or 650 it works GREAT, but things get really hot. I especially worry though when I'm soldering things like Capacitors and Diodes or transistors. How long does it take before these items get damaged by the heat? Is this the proper heat to use? Too hot? Not hot enough?
I know some of you electronics types know this. :-)
Thanks!
Jeff
#1290 Soldering Temperature for IC's, etc...
Maybe I need to get a finer tip. The tip I have is kind of flat on the sides, and round in the middle... I do use Rosin on it and make sure all the solder is off, but perhaps I need a new tip, or to clean it with a wire brush. I know it's at the right temp cause the flashing light which indicates it is flashing... perhaps it should be off...
| ||||||||||||||
![]() |
||||||||||||||
![]() |
|
![]() |
||||||||||||
![]() |
This webpage is licensed under a Creative Commons Attribution-ShareAlike License. | ![]() |
||||||||||||
![]() |