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Calculators with Support of the 82240 IR-Printer
06-25-2014, 05:09 PM (This post was last modified: 06-26-2014 08:27 AM by Martin Hepperle.)
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Calculators with Support of the 82240 IR-Printer
In order to test the IR-emitter on my new WP-34S I acquired a cheap 82240B printer. I like having a wireless option for transferring data, even if it is only one-way.

For comparison I used a HP-48G and was astonished by its range (several meters), while the WP-34S with its tiny batteries is by design more power limited and therefore on the lower side (about 10 cm).
While the 48G gives me more freedom to chose text output or graphics output I noticed that the WP-34S sends all its output in the form of bitmap graphics (probably the only way to cover its extended character set).

To complete this work I also wrote a small Arduino program to capture the IR signal and forward it via RS232 to my PC. Thus I can now capture text from the HP-48 as numerical input for other applications or control other devices (or printers) with the Arduino. This also works nicely with Christoph Gießelinks printer emulator, complete with graphics. This is a very helpful piece of software.

While I was searching for information about the protocol, I noticed that there was a quite large number of calculators supporting this little printer. So I composed a list below - maybe this is of interest to someone.
Any comments are welcome. For example I do not know whether some of the PDA machines also support this protocol.

Calculators which use the infrared "redeye" protocol (understood by 82240A/B printers):

HP-17B
HP-17BII
HP-17BII+
NOT HP-18B {copied from HP Solve N18/2010 deleted, should be 18C, see reply by Massimo}
HP-18C
HP-19B
HP-19BII
HP-27S
HP-28C
HP-28S
HP-32S {deleted, see reply by Bob, Katie}
HP-38G
HP-39G
HP-39GS
Hp-41C, CX, CV (with IR-Interface module HP 82242)
HP-42S
HP-48S
HP-48SX
HP-48G
HP-48GII
HP-48GX
HP-48G+
HP-49G+
HP-50G (IrDA, but switchable to 82240 protocol, distance less than 20mm)
NOT: HP-Prime (IrDA?, not useable with 82240?){corrected, see reply by Joe}
WP-34S

HP-95LX {added, thanks, Christoph}
HP E2310A Logicdart {added, see reply by Tony}
Other 3rd party non-calculator devices, like central heating measurement devices etc.
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Calculators with Support of the 82240 IR-Printer - Martin Hepperle - 06-25-2014 05:09 PM



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