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HP50g - RS-232 cable
10-12-2016, 03:12 PM
Post: #16
RE: HP50g - RS-232 cable
(10-12-2016 01:38 PM)Claudio L. Wrote:  If all you want is to connect to a PC, the USB to TTL serial is your best choice. If you want to connect with other RS-232 devices, then you need the level shifter.

Hi Claudio,
Thanks for the explanations. For the first little project, we need a connection only to the PC. Maybe later we would like to connect an old GPS device to the 50g. As far as this is now clear to me.

(10-12-2016 01:38 PM)Claudio L. Wrote:  Finally, if you want to connect with other devices that can't provide power for the shifter, the cable from hpcalc.org's Eric was the only solution I know of that draws power from the calculator side to function. All others draw power from the other side (always assumed to be a PC).

But can you explain to me, why the level shifter can not simply supply with the power from the 50g?

Thank you and best regards,
Joerg
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Messages In This Thread
HP50g - RS-232 cable - joeres - 10-10-2016, 10:00 AM
RE: HP50g - RS-232 cable - Martin Hepperle - 10-11-2016, 10:23 AM
RE: HP50g - RS-232 cable - joeres - 10-11-2016, 06:34 PM
RE: HP50g - RS-232 cable - mfleming - 10-11-2016, 02:40 PM
RE: HP50g - RS-232 cable - joeres - 10-11-2016, 07:02 PM
RE: HP50g - RS-232 cable - mfleming - 10-11-2016, 08:38 PM
RE: HP50g - RS-232 cable - joeres - 10-11-2016, 09:23 PM
RE: HP50g - RS-232 cable - joeres - 10-12-2016, 08:42 AM
RE: HP50g - RS-232 cable - Claudio L. - 10-12-2016, 01:38 PM
RE: HP50g - RS-232 cable - joeres - 10-12-2016 03:12 PM
RE: HP50g - RS-232 cable - Claudio L. - 10-12-2016, 07:39 PM
RE: HP50g - RS-232 cable - joeres - 10-12-2016, 09:27 PM
RE: HP50g - RS-232 cable - ilkka777 - 05-06-2019, 04:02 AM
RE: HP50g - RS-232 cable - Simone Cerica - 10-11-2016, 08:39 PM
RE: HP50g - RS-232 cable - Claudio L. - 10-12-2016, 02:38 AM
RE: HP50g - RS-232 cable - joeres - 10-12-2016, 04:48 AM
RE: HP50g - RS-232 cable - Garth Wilson - 10-12-2016, 08:26 AM



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