# Serial communication

**URL:** <https://forums.digi.com/t/serial-communication/4212>\
**Category:** NET+OS\
**Tags:** rs485\
**Created:** [April 26, 2010, 11:27am UTC](https://forums.digi.com/t/serial-communication/4212 "2010-04-26T11:27:20Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Timmie](https://avatars.discourse-cdn.com/v4/letter/t/b9e5f3/32.png) [@Timmie](https://forums.digi.com/u/Timmie)\
**Post date:** [April 26, 2010, 11:27am UTC](https://forums.digi.com/t/serial-communication/4212/1 "2010-04-26T11:27:20Z")

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Hello

I need to write a program that also uses the serial port for communication. I was looking for some information on this subject or examples. Im using the digi connect me with net+os 7.4. I have to created a RS485 connection in the end but just some basic information on the RS232 interface will be a great help. Are there some pdf’s on this subject that i might have overlooked? Thx for your time reading this

yours sincerely,

Tim

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**Author:** ![dakotas\_dad](https://avatars.discourse-cdn.com/v4/letter/d/a88e57/32.png) [@dakotas\_dad](https://forums.digi.com/u/dakotas_dad)\
**Post date:** [April 26, 2010, 1:11pm UTC](https://forums.digi.com/t/serial-communication/4212/2 "2010-04-26T13:11:06Z")

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Under ESP, look at the following sample application:

file  
ew\NET+OS Sample Project\Serial Driver Sample

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<div class="post-metadata">

**Author:** ![Timmie](https://avatars.discourse-cdn.com/v4/letter/t/b9e5f3/32.png) [@Timmie](https://forums.digi.com/u/Timmie)\
**Post date:** [April 26, 2010, 3:09pm UTC](https://forums.digi.com/t/serial-communication/4212/3 "2010-04-26T15:09:20Z")

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thx for the advice, i didn’t see it before. It will not appear when i want  
a new sample program with the normal digi connect me selected. Only under the Connect ME9210. But i guess the global idea is still the same. Thx m8

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<div class="post-metadata">

**Author:** ![Timmie](https://avatars.discourse-cdn.com/v4/letter/t/b9e5f3/32.png) [@Timmie](https://forums.digi.com/u/Timmie)\
**Post date:** [April 27, 2010, 11:04am UTC](https://forums.digi.com/t/serial-communication/4212/4 "2010-04-27T11:04:35Z")

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Hello

if being looking at the example and was wondering why it is not  
available for the digi connect me. Is there some mayor difference between connect me and connect wi-me except for the fact that it is wireless?. And in net+os 7.4 the only way to communicated with the serial port is by using threads or is this just simply the best? I am sorry im a bit of a beginner with the digi any help will be great.

yours sincerely,

Tim