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Ross, WOW.? I thought it was a kit.? They even have the Bill-of-Materials as if you should buy the parts you need. Now do I consider getting into AVR system (buying the programmers, etc.)....? I

Jong, The unit comes assembled and ready to plug into a breadboard. I have one in my hand at the moment. No need for you do anything SMD at all. Cheers, Ross

Very nice.? Small enough and cheap enough to put in a circuit during development to double check the signals. Too bad it is SMD.? I've never done SMD and a little afraid of it. I suspect I'm not the

For those of us that fight with the electronics math, here is a link to a great tool. This is Microsoft Mathematics. It is a scientific calculator as well as a full math training tool. It is

airlines and in a car. Terrific scope!!! I need fix up a few things on mine. Believe had done all that traveling. If I'm not mistaken (again with my famous disclaimer) TEK 465M is the military version

You might be able to find a real portable scope on ebay or similar sites. Unless you really just want the experience. I carried a TEK465B all over the country for almost two decades on airlines and in

Hi Andy, both sides agree, you can also use volts....which is where it is anyway!! Thanks for that info.? I figured that the input to PicAxe can be internally limited 0 to 3v.? But I never figured

Andrewdavid.mathison , I'm just kidding.? Don't take anything I say seriously - especially about being about chopped liver.? I'm really not. ===== read your comments. Someone else Happens to me all

Vellerman sell a kit if I remember correctly...... Greetings from Andy Mathison

Dear jong kung I forgot to mention, although a true RS232 works at + and - 12 volts, if both sides agree, you can also use the protocol at +5 and 0 volts....which is where it is before it gets boosted

Dear jong kung yes you did, but the time I posted (I get the daily summary), I hadn't read your comments. Someone else also mentioned it too. But well done for doing it first. By the way, there are

I built one of those Forest Mim's led scopes back in the late 70's. Great learning experience. Probably still have the remains of it laying around somewhere If you can go with OLED display, here is

Bud, Yeah, I have several because of several devices that have the requirement but it isn't something that one is going to really "stock up" on, I don't think. The biggest issue I had was when I added

I looked into the idea of voice recognition a couple of years ago and it seemed like Linux had all the packages to make it work. Given that Linux runs on many ARM9 microcontrollers, it should be

Jim, The "voice knob" project , hope you do not mind if I borrow the title, I like it, is temporary on back burner. The vendor who advertized the "voice recognition chip" turned out not to be

Unless you specifically desire LED display, I would suggest looking into LCD. I think most Hitachi standard compatible LCD's have a graphic mode available. I feel major advantage of LCD would be

Jim, Thanks for the tip, but I have the only one that I will ever need (barring failures, accidents, etc.). Bud, KA3UBD

Regarding the requirement of a serial port for some mcu's: Parallax makes a nice affordable usb to RS232 adapter. On the Parallax website, look for "Parallax USB to Serial (RS-232) Adapter" but it is

I liked Popular Electronics. Built one of their VHF receiver kits from scratch back in the late '60s. Tube type. It was a lot of fun. Charles AE5EW