Arduino and Raspberry Pi

[Dayananda A]

Hi,

   I need to make my Arduino Uno talk with Raspberry Pi over Zigbee. Which modems do you suggest?  Xbee is the most popular one I found on the net. I am wondering if I should consider other alternatives too. Any information about other modems cheap and easy to use will help me a lot deciding on one and get on with my implementation.

Regards,

-Daya

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[Nallamothu Anjibabu]

Dear Daya,

we have communicated using serial port.(Arduino uno to Raspberry Pi).

Regards,

Anjibabu N

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Thanks and Regards,

Anjibabu.N

[Sudar Muthu]

If you have no constraint on the cost, then you can try the following

- Have a Ethernet shield in Arduino and talk through http (or) wait for Arduino Yun (http://hardwarefun.com/news/arduino-yun-arduino-based-wireless-linux-board) :)

- Have a Serial Bluetooth module or USB Host Shield + Dongle and talk through bluetooth

If you can make it wired, then you can plug Arduino into the USB port of Raspberry Pi as well.

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Sudar

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[Dayananda A]

Hi Guys,

   Thanks. But I want to have a wireless interface of a decent range and must support ad-hoc mode of networking. And cost is a constraint. The Arduino will be a stationary sensor node while R Pi is mobile. As and when R Pi and arduino come in the communication range, I want to initiate a some signalling and some data transfer. That is the plan. Zigbee seemed like a fitting candidate that's why I picked that trail.

Regards,

-Daya  

[Mohd Laeeq]

HI,

CC2500 i think can fit the bill, its cheap, supports upto 255 clients, input is via UART or SPI, and is helpful for small data transfers . http://www.robosoftsystems.co.in/roboshop/cc2500-wireless-module.html

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Best Regards,

Laeeq

http://www.infinite-loop.in

[Avik Dhupar]

Hi!

Have you heard of the Tarang modules? These are the indian version of XBee. Check them out here http://www.melangesystems.com/Tarang.html

And you can get them from NSK. They usually have two modules - F4 (with 100ft reange) and F20 (with 1km range), both LOS.

Also, I wouldn't suggest going for the CC2500 modules, at least not from NSK. There is a bug in the board that they've designed and you'll surely fry the modules very fast.

Cheers!

Avik

[Sudar Muthu]

On Tue, May 21, 2013 at 3:05 PM, Avik Dhupar <avi...@gmail.com> wrote:

And you can get them from NSK. They usually have two modules - F4 (with 100ft reange) and F20 (with 1km range), both LOS.

Hey do you know the rough price for these modules?

[Avik Dhupar]

Yep, the F4 is 2K for a pair and F20 is 2.5K for a pair, both with breakout boards.

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[Tavish Naruka]

You can buy cc2530 based micro plus radio from aliexpress. Around 10usd each

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[BEN HISSI Manel]

Hi,

   I need to make my Arduino Uno talk with Raspberry Pi using UART. I'm afraid from damaging my Pi because the arduino voltage is 5V but the Pi voltage is 3.3V  . I bought 2 zener diodes 3.3v and 5v . Any ideas about how to connect them ?

Regards,

Manel

[Hari Krishna Malladi]

You can use a voltage divider on one side and a transistor on the other. It's quite simple actually

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[Sharath chandra]

Another fun option is NS73M Transmitter module with arduino --> sensor data over AFSK -->SDR Rx to RPi.

The reverse is even more fun, as GPIO Pins in Rpi support FM Tx (for possible Duplex handshake).

Here's something we did with RPi Tx which was fun for quake reporting on 96Mhz FM: https://www.youtube.com/watch?v=8b1OlNuJC9g (the tough part is the realtime GIS)

Ofcourse Xbee, and Avik's input is great as it is unlicensed frequency, and so no DoT hassles.

 I am currently proposing policy recommendations to them for civic media use! 

Regards

Sharath