Get data via IR and log it to iOS device via SoftModem FSK. https://code.google.com/p/arms22/source/browse/#svn%2Ftrunk%2FSoftModem
IR Printer emulator for Testo flue gas analysator http://www.testousa.com/combustion/testo-310-residential-combustion-analyzer.html.
Coded for pic18f2550 compiled with SDCC
send data at 19200 bps over serial
protocol http://members.ziggo.nl/kees.van.der.sanden/downloads/82240bte.pdf (HP-IR, HP48)
http://www.keesvandersanden.nl/calculators/hp82240.php
Video showing "printing": https://www.youtube.com/watch?v=RM3XE1EymNQ
http://www.kamstrup.com/media/2105/IEC61107_comprotocol.pdf
300 baud, 1 start bit, 7 data bits, even parity and 1 stop bit
To meter: /?![CR][LF]
http://kamstrup.com/media/19757/file.pdf
The protocol is based on half duplex serial asynchronous communication with the setup: 8 databits, no parity and 2 stopbits. The data bit rate is 1200 or 2400 baud. CRC16 is used in both request and response.
http://ing.dk/blog/tal-med-din-elmaaler-og-ingenioeren-120524 "300 bps, 7 databit, lige paritet" "/ ? ! CR NL"