Aurel RTX MID 5v Transceiver [Solved]

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costo
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Aurel RTX MID 5v Transceiver [Solved]

#1 Post by costo » 28 Jan 2016, 19:31

Today I had problems with my Powerfix switches so I took a look at the Mega/RFLink print and found a loose connection to the Aurel RTX-MID Transceiver.
I looked at the connections for the Aurel at http://www.nemcon.nl/blog2/2015/07/aa and noticed that I had to connect pin 10 of the aurel RxTx to pin 16 of the Mega.
I saw I had that same pin connected to Vcc 5V on the Mega.

When connected Aurel pin_10 to pin16 on Mega I could not transmit any commands to my 433MHz devices so had to connect this pin back to Vcc to make it work.
I use RFLink Version: 1.1 Revision: 35 Build: 10, so is there a change in connection of the Aurel transceiver with the latest RFLink distribution ?
I am a little confused about this pin.
Last edited by costo on 29 Jan 2016, 14:42, edited 3 times in total.

BertB
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Re: Aurel RTX MID 5v Transceiver

#2 Post by BertB » 28 Jan 2016, 20:02

Did you check the datasheet of the transceiver?
http://www.aurelwireless.com/wp-content ... 33G_um.pdf
The little schematic explaining the connections are for a situation with a separate transmitter and receiver, of which examples are shown in
http://www.nemcon.nl/blog2/2015/07/aa

Probably the schematics could use some updating.

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costo
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Re: Aurel RTX MID 5v Transceiver

#3 Post by costo » 28 Jan 2016, 22:41

BertB wrote:Did you check the datasheet of the transceiver?
http://www.aurelwireless.com/wp-content ... 33G_um.pdf
The little schematic explaining the connections are for a situation with a separate transmitter and receiver, of which examples are shown in
http://www.nemcon.nl/blog2/2015/07/aa

Probably the schematics could use some updating.
Yes I had checked the datasheet when I was connecting it for the first time.
This page on nemcon.nl says about the Aurel :
If you would like to use the Aurel RTX MID 5v Transceiver the pinout is:
Pin 1 = Antenna
Pin 2 = Ground
Pin 3 = Not Connected
Pin 4 = MEGA tx3/Pin 14 (TX Data)
Pin 5 = MEGA rx3/Pin 15 (TX VCC)
Pin 6 = MEGA Pin 22 (-RX/TX- toggle signal!)
Pin 7 = Ground
Pin 8 = optional: 20k resistor to ground
Pin 9 = MEGA rx1/Pin 19 (RX Data)
Pin 10= MEGA tx2/Pin 16 (RX VCC)
So today I connected it as mentioned in the list above, receiving 433MHz signals is doing fine but I cannot transmit data when I connect it the way the RFLink website shows.
4 months ago I got a p.m. from Stuntteam about how to connect the Aurel RxTx to the RFLink and he mentioned at that time, to connect Aurel_pin_10 to Vcc of Mega and that worked fine up till today. I am still using R35 Build 10 of RFLink.
I wonder if the controlsignals in R36 and/or R37 are different than it was in R35 because I MUST connect Aurel_pin 10 to Mega_pin Vcc to make it work.

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Re: Aurel RTX MID 5v Transceiver

#4 Post by Stuntteam » 29 Jan 2016, 09:45

Sorry, there were some mistakes introduced in the schematics when they were last updated with the RBX6 details.
Indeed pin 10 should go to vcc.
The page has been updated.
-=# RFLink Gateway Development Team #=-
Introduction: http://www.nemcon.nl/blog2/
Generic Support forum: http://www.esp8266.nu/forum/viewforum.php?f=8

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costo
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Re: Aurel RTX MID 5v Transceiver

#5 Post by costo » 29 Jan 2016, 14:39

Stuntteam wrote:Sorry, there were some mistakes introduced in the schematics when they were last updated with the RBX6 details.
Indeed pin 10 should go to vcc.
The page has been updated.
That clearyfies it. I'm glad this error is fixed now.
There was no risk of damaging the Aurel transceiver or the Mega2560 I believe. Both connections were Vcc related.

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costo
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Re: Aurel RTX MID 5v Transceiver [Solved]

#6 Post by costo » 29 Jan 2016, 14:41

double post
Last edited by costo on 29 Jan 2016, 21:24, edited 1 time in total.

Voyager
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Re: Aurel RTX MID 5v Transceiver [Solved]

#7 Post by Voyager » 29 Jan 2016, 19:30

Btw, Rev35 is a bit old already :)

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Re: Aurel RTX MID 5v Transceiver [Solved]

#8 Post by costo » 30 Jan 2016, 15:08

Voyager wrote:Btw, Rev35 is a bit old already :)
Like the saying says:
If it aint broke don't fix it.
R35 is from about 2 months ago I believe.
For me it is a very good release, I only use KaKu, Powerfix, EV1527 and some PT2272 devices. No need to update.

I would update regular if I could compile a newer version myself.
Using the flashprogram under Windows is not what I like to do, (Booting up and wait 20 minutes until all the security updates are done :lol: )
If I find a easy way to flash the Mega from inside Linux/Mint I will probably upgrade more frequent.

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