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Bluetooth communication (Read 84075 times)
_Cliff_
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Re: Bluetooth communication
Reply #15 - 11/17/10 at 08:19:57
 
MiniMyP8 ??. I didn't think I had shipped any yet.

Bluetooth is the transport not the protocol. Bluetooth is the wire. It doesn't affect anything else.

If you have recent firmware, the bluetooth modem initialisation will be done on start up. You will know because the fuel pump is delayed. Switch 4 On is used to enable this function.

With bluetooth you will still be using ECUController for PC or Win Mobile. It doesn't know about bluetooth. It just connects to a serial port.
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Re: Bluetooth communication
Reply #16 - 11/17/10 at 09:53:46
 
Thx.
So there is something funny w the cable-PCB connection then, 232 w cables no workie.

I have a P8 in a 1.6 chassie from Denmark.
Smaller PCB than in my P8, thought that was the Mini.
Looks like the one here: http://cajinnovations.com/yabb0/YaBB.pl?num=1240975766
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« Last Edit: 11/17/10 at 09:57:15 by greenmonster »  

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Re: Bluetooth communication
Reply #17 - 11/17/10 at 12:11:06
 
Yes that's the mini.
You've had comms working before surely, as you had the unit for a while now.
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Re: Bluetooth communication
Reply #18 - 11/17/10 at 12:33:50
 
I know nothing but don't forget the baudrate changed when BT support was added
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Re: Bluetooth communication
Reply #19 - 11/18/10 at 02:09:04
 
Baudrate:
The term roughly means the speed that data is transmitted.
According to Wiki et others.


1. Does this mean I have to change settings somewhere for the PC harddware ?
Like COM1 port.

2. What practical consequence does other baud rate have in this case?

3. When I put my old MyECY P8 back,
is there any advantage using EcuControl 150 or is this version just developed f Bluetooth?

Just testing this Mini f a Danish friend.
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« Last Edit: 11/18/10 at 02:19:35 by greenmonster »  

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Re: Bluetooth communication
Reply #20 - 11/18/10 at 05:51:37
 
The ECUController sets the baud rate.
The baud rate change also coincided with ECUController version change from 14x to 15x.
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Re: Bluetooth communication
Reply #21 - 06/27/11 at 10:25:36
 
Better save the bluetooth module data here before it becomes unavailable.

http://www.cajinnovations.com/a7-qs-serial.pdf
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Re: Bluetooth communication
Reply #22 - 08/03/12 at 05:01:04
 
MODERATOR I may be posting this to a subject that is now out of date, please move as you think fit.

I am interested in the BlueTooth solution, I bought my son a Samsung Mini for Christmas and as I am still bigger than him it sounds ideal.

This thread mentions a dongle, now unfortunately is no longer available, with several people suggesting alternatives.  So which is the preferred option for someone in the UK?

Cliff stated:
“For the DIYers you can get them from a7 direct and add the lan cable to connect to module to MyECU instead of the current serial adapter. Only 4 wires are used and it's a simple job to do. Details to follow".

Sadly I cannot find those details anywhere.

I assume I can cut up an old network cable, plug the RJ45 connector to the MyEcu and do the ‘simple job’ of soldering the other end to the dongle.

What powers the dongle?

How do I enable the MyEcu BT contact, SW4?

A diagram would really help.  Many thanks.
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Re: Bluetooth communication
Reply #23 - 08/03/12 at 07:05:46
 
Some of the information I posted in the other thread seems to have gone missing. Here are some links to some sources.

http://microcontrollershop.com/product_info.php?products_id=4531
http://www.ebay.com.au/itm/RN-42-Bluetooth-Module-BOB-Roving-Networks-Use-Arduin...

The main thing is the RN-42 module and if you google for "RN-42 for Arduino Pro / LilyPad" you'll find many more. They all seem to  be around the $40 mark.
Other parameters is that they are 5V powered and have 5V serial lines.

Only a few days ago I was told of another dongle on ebay that is around $10. I've ordered one and will update here as to whether it is any good.

I'll get some wiring diagrams soon.
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« Last Edit: 08/03/12 at 11:25:28 by YaBB Administrator »  
 
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Re: Bluetooth communication
Reply #24 - 08/09/12 at 22:56:22
 
Hi Pasotibbs, any news on the cheaper dongle?
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« Last Edit: 08/09/12 at 22:57:12 by Bobd »  
 
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Re: Bluetooth communication
Reply #25 - 08/10/12 at 08:48:01
 
That's weird. It was actually me that made that post, not Pasotibbs.

It hasn't arrived yet and upon reading a little more, it is not directly suitable as it seems to be RS232 output levels rather than 5V. Still there may be a simple mod, so we'll soon see.

PS: On further investigation it appears the seller has a TTL level equivalent also for the same price - http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270979961067#ht_2633wt_1111
I've put an order in for one of those also.
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« Last Edit: 08/10/12 at 08:59:20 by YaBB Administrator »  

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Re: Bluetooth communication
Reply #26 - 08/10/12 at 19:26:12
 
I have just had two of these delivered from Ebay for £12 (item 180690200006), however  from your post it looks like I have made the mistake of getting RS232/TTL devices.  Is it just the voltage levels or someting more complicated.

These are the specs from Ebay:-

These Bluetooth transceiver module can modify master and slave mode at any time.
Description:
•Allow your target device to send or receive the TTL data via Bluetooth technology without connecting a serial cable to your computer
•With built in antenna
•Easy to use and completely encapsulated
•TTL data transfers between host Bluetooth device
•Can work with any USB Bluetooth adapters
•Can be used for mouse, keyboard, joystick, computers and peripherals, GPS receiver, industrial control, etc
•Mini Size (L x W x H): Approx. 27 x 13 x 2mm
Operating Frequency Band: 2.4GHz
Bluetooth Specification: V2.0+EDR
Output Power Class:Class 2
Operating Voltage:3.3V
Flash Memory Size:8Mbit
Storage Temperature: -40 to 85 degrees Celsius
Working Temperature:-25 to 75 degrees Celsius


As usual they came with no documentation but appear to be physicaly identical to the item on the site below so pinouts should be the same.

http://www.theengineeringprojects.com/2012/02/bluetooth-transceiver-module-rs232...

Do you think they are usable?

I could post one to you if you are interested.


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« Last Edit: 08/10/12 at 19:33:46 by Bobd »  
 
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Re: Bluetooth communication
Reply #27 - 08/10/12 at 19:44:21
 
Yes there seem to be two varieties but neither is exactly right. One runs off 5V but has RS232, the other is TTL but 3.3V TTL. Rather annoying but I may be able to find a simple mod to one of them.
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Re: Bluetooth communication
Reply #28 - 08/20/12 at 02:55:17
 
This is the RN42 modem I purchased, and it seems to say that it will work for 3.3-6V:
https://www.sparkfun.com/products/10269
According to Sparkfun,
"The remote unit can be powered from 3.3V up to 6V for easy battery attachment. All signal pins on the remote unit are 3V-6V tolerant. No level shifting is required. Do not attach this device directly to a serial port. You will need an RS232 to TTL converter circuit if you need to attach this to a computer."

     In order to do some initial setup, I had to use the ftdi-based USB/serial cable mentioned elsewhere so I would have the appropriate TTL level.
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« Last Edit: 08/20/12 at 02:56:12 by COnewbie »  

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Re: Bluetooth communication
Reply #29 - 08/20/12 at 06:41:21
 
There is no setup required for this modem.
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