PDF file with printdesign in the right size. With expanded service assistance from the Club President Joakim, OZ1DUG ,Ĭapability to make print is NOT for produktion, so please make your ovn. With the local clus, EDR Fr.sund 's PCB manufacturing equipment, it proved possible to get made The sound of the speaker can be taken from pin 18 on the CPU in serie with MIN. The 6 -pin connector J1 used by the advanced ARDUINO programmer to program When reading application note for ATmega328P, it was not difficult to identify ports from ARDUINO UNO and find the equivalent of the processor, and after an Not difficult to take the CPU and put it in ARDUINO UNO, if it has to be reprogrammed. It's not certain that this will be the last change in the decoder software, for it is I feel that the decoding has been improved a bit by this change. Left to decode the received letter or number. So I transformed it into a table lookup, and this will appear in the code, so there are now only 2 "for" -statement and 2 "if" -statement Hjalmar had 57 "if" -statement in the decoder, one for each letter or number he Some of them then, too, improved, at least in relation to the eyes to look at the code.
DANISH CW DECODER CODE
I do not mean that one should buy a ARDUINO UNO, and put it in a nice box, and connect the various components, such as a display and power supply, etc., so I designed a print on the basis of experience experiments with Hjalmar's decoder.Īfter my views, Hjalmar's code clearly composed of several different pieces of programs. Wired up, and after half an hour, I was running with Hjalmar decoder. Where discussing and talking about different problems that builders have run into (English).Ĭoincidentally, I had a ARDUINO UNO lying from an old experiment, and it was immediately cited, OZ1JHM, Hjalmar has described a very simple and lightweight construction, to decode telegraphy. However, it would last for a long time without backlighting, and even with the new connecting a speaker to morse the received signals, there is a long time decoding on just a 9 volt battery. It uses a lot of power, and a new battery is worn out in an hour or so. This small design runs fine and long for a 9-volt battery, if you do not necessarily need to have backlight on the display (do not mount R6, 12 Ohm), Display, a new DEMO shows that beacon OZ7IGY canīe decodet, inclusiv the first letter of the call sign: