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How to Connect Two netduino's and transmit data's


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#1 karthick

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Posted 08 August 2011 - 06:11 PM

Hi I am a beginner ....i am able to run a servo motor with netduino plus....Now i am thinking of running 4 servo motors with 2 netduino plus ..... Can anyone suggest me the steps ..... Thanks in advance

#2 Inquisitor

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Posted 09 August 2011 - 01:25 AM

Hi

I am a beginner ....i am able to run a servo motor with netduino plus....Now i am thinking of running 4 servo motors with 2 netduino plus ..... Can anyone suggest me the steps .....


Thanks in advance

I’ll take a crack at it. There are four ports to control servos, so you don’t really have to use two Netduinos unless you just want to. Here someone has a single Netduino set up with four (pins 5,6, 9 and 10). It is a little difficult seeing where the wires go from the video, but if you’ve already successfully got one working, you should be fine. Also, note the Netduino can’t supply the servos enough power if they’re under any kind of load. (Warning: It could screw up your Netduino) Here another avid user has found a board to control eight with one Netduino. Hopefully, Stefan will reply… he’ll know how to power them from a separate power supply to keep your Netduino healthy if the little board doesn’t do it already.
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#3 karthick

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Posted 11 August 2011 - 01:34 PM

I’ll take a crack at it. There are four ports to control servos, so you don’t really have to use two Netduinos unless you just want to. Here someone has a single Netduino set up with four (pins 5,6, 9 and 10). It is a little difficult seeing where the wires go from the video, but if you’ve already successfully got one working, you should be fine. Also, note the Netduino can’t supply the servos enough power if they’re under any kind of load. (Warning: It could screw up your Netduino) Here another avid user has found a board to control eight with one Netduino. Hopefully, Stefan will reply… he’ll know how to power them from a separate power supply to keep your Netduino healthy if the little board doesn’t do it already.

Thanks for your response.....But I am planning to establish a communication between two Netduino's ...If i got it working then it will be easier to connect more servos....

Once again thanks

#4 Nevyn

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Posted 11 August 2011 - 03:10 PM

Thanks for your response.....But I am planning to establish a communication between two Netduino's ...If i got it working then it will be easier to connect more servos....

You have a few comms options:
- Serial will work out of the box with the only hardware required being the cable and connectors. This is probably the simplest in terms of - programming.
- With the Netduino Plus you can use networking over CAT5 cable. A little more complex as you need to set up a client server network.
- WiFi - You will need a shield for each Netduino. There are a few around and NickDuino has recently posted some working code for a Netduino talking to an iPad.
- XBees - there are a few examples around but Terry Massey has produced a tutorial video.
- Bluetooth - hardware required but this is then back to serial programming. I connected a Windows application to the Netduino using Bluetooth and wrote about it here.

Hope this helps,
Mark

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