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All you need is a fortyone beep
05-01-2016, 06:44 PM
Post: #1
All you need is a fortyone beep
My real missing function on a WP34s is the beep, when a program is finished. I use the IR way to give the signal, "hey the work is done". Here is the video:
https://www.youtube.com/watch?v=OZDnWbxTdJA
You need:
IR Receiver Infrared Radiation Module 38 kHz Remote TSOP4838 DIP-3
Voice ISD1820 Recording Recorder Module With Mic Sound Audio+Loudspeaker (or a better one from an old PC)
a 2 AAA Battery holder box (3V) and a universal case
a switch and an old cable of an earphone 3.5mm
With some modifications, you have a nice tool for an acustic signal.
It also works with any tv remote control. For activation from a WP34s with IR option, you can use any short printer command.

My next project is a IR controlled power switch for AC usage. Then I can switch my pc with my WP or my HP41 (with IR module) on. :-)

Best regards
Hans-Peter


Attached File(s) Thumbnail(s)
           

.pdf  Sound recorder 1820 for HP41 beep.pdf (Size: 245.95 KB / Downloads: 23)
.zip  HP41Beep.zip (Size: 33.02 KB / Downloads: 10)
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05-02-2016, 11:18 AM
Post: #2
RE: All you need is a fortyone beep
(05-01-2016 06:44 PM)Hans-Peter Wrote:  My next project is a IR controlled power switch for AC usage. Then I can switch my pc with my WP or my HP41 (with IR module) on. :-)

Best regards
Hans-Peter

I can switch my PC or calculator by the button )) For AC-IR power switch there are the prepared cheap devices on sale.

HP-50g, HP-48gii, TI-83 plus, FX-2.0, CFX-9850GB plus
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