Datalogging with a Palm...it CAN be done!
06-21-2007, 08:32 AM
#23
Yes, you must use a Palm that has a real serial interface, it seems that no one can get the ones with the universal cable to work.
http://www.msefi.com/viewtopic.php?t=17772
Here is a list of Palm devices so you can decide on your own:
http://www.geocities.com/netbrakr/
http://www.msefi.com/viewtopic.php?t=17772
Here is a list of Palm devices so you can decide on your own:
http://www.geocities.com/netbrakr/
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06-21-2007, 12:02 PM
#27
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As long as you can link the TD signal of one device to the RD input of the other, you might get it to work. The main issue in using the palm is that both the MS and the Palm are DTE devices by default, so you need someway to get them to communicate with each other. I did this by making a null modem connector. I imagine you'd need something similar between MS and the bluetooth adapter, but then I'm not sure the bluetooth would be capable of running to a non-DTE device. Good luck.
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06-21-2007, 01:28 PM
#29
From my understanding based on wiring diagrams I have found (don't have a link, search around in the Palm part of the MSEFI forum), you must have a resistor placed across two of the points to enable the palm to enter "serial" mode. Unfortunately, it's not a true serial mode, and when people try to connect it to Megasquirt, it connects/disconnects intermittently, making it impossible to use.
Honestly though, unless you already have one of the Palms that uses a universal cable, you can try, but the older ones are so cheap, its not worth getting a slightly newer one that *may* not work. I originally thought this was a great opportunity for me to finally get a nice PDA, but obviously, my dreams were shot.
I recently bought a Palm IIIxe off eBay with a modem, keyboard, stylus, neoprene case, and hard cover for $12.50. Unless someone else chimes in, I wouldn't get the IIIc, as the screen from what I heard is near impossible to see in daylight, making it useless to tune/datalog with.
Honestly though, unless you already have one of the Palms that uses a universal cable, you can try, but the older ones are so cheap, its not worth getting a slightly newer one that *may* not work. I originally thought this was a great opportunity for me to finally get a nice PDA, but obviously, my dreams were shot.
I recently bought a Palm IIIxe off eBay with a modem, keyboard, stylus, neoprene case, and hard cover for $12.50. Unless someone else chimes in, I wouldn't get the IIIc, as the screen from what I heard is near impossible to see in daylight, making it useless to tune/datalog with.
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06-21-2007, 01:45 PM
#30
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The bit about the IIIc in the daytime is true. I'm only using it because it is what I had sitting around. I put it in the dark passenger footwell, with the real-time display put on the 4-reading mode (so it's big enough to read from the driver's side), but it's not optimal. Datalogging is fine though, because I just use the up/down buttons to stop/start during runs, and don't need the stylus. Then I transfer to the computer later to check it out.
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06-21-2007, 06:01 PM
#31
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Hmm Next choice would be a Palm Vx or V with this guy and I'll get them to cross the pins for me or I'll get a null modem adaptor.
I'd rather spend a couple extra bucks and not have to deal with AAA batteries all the damn time.
I'd rather spend a couple extra bucks and not have to deal with AAA batteries all the damn time.
As long as you can link the TD signal of one device to the RD input of the other, you might get it to work. The main issue in using the palm is that both the MS and the Palm are DTE devices by default, so you need someway to get them to communicate with each other. I did this by making a null modem connector. I imagine you'd need something similar between MS and the bluetooth adapter, but then I'm not sure the bluetooth would be capable of running to a non-DTE device. Good luck.
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10-13-2007, 09:20 PM
#33
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OK, 4 months later I finally pulled the trigger :gay:
Got (coming) a Handera TRGpro, which is a variant of the Palm IIIxe. From what I can tell, it's a IIIxe with a CF slot on top. Runs on Palm OS 3.5.3, but does NOT seem like it's upgradable to OS 4 like the xe. But obviously will have dramatically more storgage and data transfer abilities with the CF slot. Will advise if it works. Or if it doesn't.
Got (coming) a Handera TRGpro, which is a variant of the Palm IIIxe. From what I can tell, it's a IIIxe with a CF slot on top. Runs on Palm OS 3.5.3, but does NOT seem like it's upgradable to OS 4 like the xe. But obviously will have dramatically more storgage and data transfer abilities with the CF slot. Will advise if it works. Or if it doesn't.
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10-13-2007, 09:51 PM
#35
been running this stuff on the wife's old palm M130 for about 2 months. it's a pain in the *** to configure and learn where all the features are hidden, but after that it's great. I need to figure out which pin on the m130 is the charge pin and how much voltage it puts out so I can charge while in use.
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