Tag Archives: RS-232

Update: Kits, IR Compression, Serial Hack etc….

As we are approaching the last 10 days of the campaign we would like to share the following updates:

● Today we were informed that the kit components were shipped via UPS to us here in Dublin. Hopefully, they will arrive within a few days, which means we should be able to start posting them out over the weekend or early next week.

● We have been busy this week with preparing the Windows installation package and it seems to be going well – so far.
● We also improved the Arduino code and increased the effective RAM available for AnalysIR.
● We have also integrated the IR modulation measurement into the GUI and it works well with the Modulation frequency being updated ‘at least’ once per IR signal. As we mentioned previously, we have not seen an example of IR modulation frequency being measured on an Arduino before, and particularly not simultaneous with IR decoding.
● We have also added support for compression of IR when importing or exporting in Global Cache format.
● Yesterday we had an interesting experience with the Arduino. As we were swapping out one IR receiver and held the signal line in the hand – a signal received by AnalysIR. We inspected the signal and it seemed to be pretty consistent, so it was analysed quickly using excel and it turned out (not surprisingly) to be mains hum which in this part of the world has a frequency of 50Hz (vs 60Hz elsewhere). That then got me thinking about the following hack!
● We then tested sending a series of serial signals from another Arduino into the IR rx pin and voila the serial trace appeared in the display of AnalysIR. We successfully tested up to 38400 BAUD and bit higher. So even though we do not plan to ‘officially’ support serial protocols at this time, it means that you could potentially use AnalysIR as a pseudo Serial analyzer or even a basic digital signal/logic analyzer of sorts. The limit would be somewhere between 40-50kHz, on a 16MHz Arduino. Not bad a hack before release  🙂

● We have recently come across several new IR protocols including:
Japanese Code

– To date we have completed all the investigations needed to decode them and add them to AnalysIR. However, we will have to defer this until after the initial release has settled down & we can get reliable source signals to verify against. Once we complete these new signals we will be heading towards an even more comprehensive list of supported protocols.


……stay tuned

Update: More good news today & another Bonus feature!

More good news today & another Bonus feature!

The news is that today AnalysIR was accepted into the Microsoft BizSpark programme, which will help us out in our development efforts on the MS platform along with lots of other goodies.

The Bonus feature is the addition of support for Importing of Global Caché commands in GC-100, iTach, GC-IRL & GC-IRE formats into AnalysIR. This was suggested by one of our backers & we hope to close the loop by supporting export as well (Time permitting).

An interesting point is that GC sells a learning device (like an RS-232 dongle) for importing IR signals and it costs circa $100 on Amazon. It looks like when we get the export feature working, AnalysIR with an Arduino will be able to a lot lot more than this $100 device.

So the list of formats now supported for import includes:

– IRremote
– IRLib
– Pronto CCF
– Global Caché GC-100
– Global Caché iTach
– Global Caché GC-IRL
– Global Caché GC-IRE

and we may add a couple more in the initial release. We also hope to support export of these protocols from AnalysIR – time permitting. This means that you will have a generic device than can record & decode via the Arduino – plus convert to/from all these formats. Impressive!

Thanks to our backer who has a Global Caché device and is willing to test the AnalysIR export once it is available.