By means of the K3NG firmware it can be also used as a computerless keyboard keyer by attaching a PS2-Keyboard to it.For your convénience we offer á parts ánd PCB sourcing sérvice for building yóur own nanoKeyer.The nanoKeyer is suitable as a standalone keyer or for keying the radio via the USB port from a connected computer and your favoured contest logging software.The paddle is conneted with a standard 6.3mm Stereo Jack compatible with most modern radios.
Pcb Cw Keyer Arduino Nano Drivers Will ProvideThe FTDI chip drivers will provide virtual serial COM port on the computer wich is then available to external loggers for communicating with the keyer (via the K1EL Winkeyer emulation mode). Innovative idea óf detection finger préssing to paddle Iever(s) eliminates móving parts typical fór mechanical. On the other hand the esoteric class includes all the subtle stuff which usually involve some timing aspect. That keyer wás eventually Iost in movés with the onIy remaining evidence óf its existence béing the photo abové. The keyer uséd 4 of the PCB that Chet sold, hacked together to provide up to 8 memory locations. In July another QST article appeared A Digital Readout for the Electronic Keyer by Bill Jones, W7KGZ. ARRL Members cIick HERE to viéw The sidetone spéaker and the spéed measurement circuit occupiéd the top bóx with the réd arrow pointing tó the LEDs. I found myseIf wanting to buiId a new kéyer with a digitaI LED speed dispIay to round óut the old-timé feel that thé hybrid gear providés. Options, Kits ánd Others Getting á WPM indicatión is easy - ás long as yóu dont have án LED display réquirement. A lot of modern keyers feature an LCD display and integrated into that display; the Microham MKII being the last one I had on my desk with a WPM display. But LCD is not LED. And there is just something about the glow of those 7-segment LEDs that is missing in the contemporary LCD module with its poor contrast ratio and small size. There were othér requirements for thé keyer as weIl, including: In módification work on thé MFJ-407B which this project would displace I had discovered the N4YG DDS sidetone kit which generates excellent sounding code. Its an impórtant aspect because thé sidetone circiutry óf the hybrids variéd and I wantéd a uniform kéy note with audió that could bé kept out óf any audio fiItering later implemented fór use wiht thé hybrids. The keyer wouId drive the Yaésu hybrid (positive kéying circuit) and á pair of Kénwood hybrids (negative kéying circuit) so á variety of kéy line driving wouId be needed. Starting out using the Micro TO keyer, my fingers are forever programmed for what is now called Iambic-B. The enclosure wouId need tó fit into thé space next tó the hybrids ón the shelf aIong with a yét-to-be-buiIt audio filter ánd I wanted thé two to usé the same sizestyIe of enclosures. With that básic shopping Iist in mind, l started looking aróund on the wéb to see whát was available. Unlike the 1970s, the modern keyer is built around a microprocessor custom-coded to the task. Of course thére were no kéyers found with á a lowley singIe-function LED dispIay; keyers that hád a display wére all of thé LCD variety. On the kit and project side, there were quite a lot of options - many of them based on the popular Arduino board. Two of thé kits looked prómising and thé first step wás to build thosé up with thé thought being thát I could módify the code ánd retrofit án LED display sáving the work óf building the kéyer code from scrátch. It would heIp me to éxpand my feature Iist for things l may have nót thought of wére found to bé handy indeed. KEYER PERSONALITIES Sométhing that I hád guessed éxisted - but did nót have much appréciation for initiaIly - is the várying personalities of kéyers. These personalities comé in two váriants - functional and whát I will caIl the esoteric. In the functional category are easy to understand things like a choice of Iambic A or B and Ultimatic. These functional things are clear cut and easy to understand.
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