Hello Carl, thinking about your application scenario again I considered another solution that might be easiest to deploy. It uses Bluetooth - either your PDA is already equipped with it - or you may use a CF BT card. For your serial data sources => you may use a module that does a serial cable replacement over BT. The most compact one that I'm aware of (and that I actually use sucessfully) is a module made by TDK http://www.tdksystems.com/tdk_bluetooth/bluetooth_serial_module.asp Software on your PDA will let you set up multiple serial connections over Bluetooth in parallel (at least with a PDA running Linux and the Bluez BT stack). Your application on the PDA can then individually cope with the data coming from each source. Maybe that is an approach for you. Regards Ralf --------------------------------------------------------------- Dr. Ralf Ackermann _Multimedia Communications |/ | | |\/| Merckstrasse 25 |\ |_| | | 64283 Darmstadt, Germany Tel.: (+49) 6151 16-6138 Fax: (+49) 6151 16-6152 --------------------------------------------------------------- http://www.kom.tu-darmstadt.de/~rac --------------------------------------------------------------- -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" to
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