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| EEVblog:
--- Quote from: desolatordan on February 01, 2010, 12:29:49 am ---I don't see the benefit of plugging in USB rather than plugging in a ISP connector for programming...? --- End quote --- The benefit is that no programming hardware is required, just a USB cable. Any user is then free to upgrade their firmware without needing to buy or make an ISP programmer. --- Quote ---There's a lot of overhead when using Arduino language, http://hackaday.com/2010/01/06/arduino-io-speed-breakdown/. The only way around this is to bypass the Arduino abstraction, in which case you might as well not use it anyways and just use gcc compiler. --- End quote --- I don't see speed being an issue in this app. But the benefits of using Arduino are potentially quite large. Dave. |
| Chasm:
--- Quote from: desolatordan on February 01, 2010, 12:29:49 am ---I don't see the benefit of plugging in USB rather than plugging in a ISP connector for programming...? --- End quote --- As Dave said, you won't need an ISP Programmer. Further you can't change the fuses this way, the easiest way for beginners to shut themself out of the micro. Of course you need the usb<->serial converter (the FT232 is popular). Also you need a micro with the bootloader code programmed and the correct fuses set in the first place. --- Quote ---There's a lot of overhead when using Arduino language, http://hackaday.com/2010/01/06/arduino-io-speed-breakdown/. The only way around this is to bypass the Arduino abstraction, in which case you might as well not use it anyways and just use gcc compiler. --- End quote --- Each and every abstraction layer will cost you. If I've followed the discussion correctly the idea is to make the hardware Arduino compatible. As far as i can tell that means using a run of the mill AVR design that incorporates a FT232 usb converter. After that it is possible to flash a Arduino bootloader and use the Arduino toolchain. Thus making the project interesting to a larger group. Whether there will be Arduino or "native" software is up to those writing it. ;) Since wireless connectivity and insulation against faults has been mentioned before: Using Bluetooth has become a cheap and simple way to connect micros (via RS232 & SPP) to the outside world. There is a Arduino board with BT via the WT11 module instead of usb via FT232RL. The WT11 seems to be a bit pricey with about €30, the BTM222 for €13 is vastly popular at the moment. |
| cd:
Hi, serial out would be nice - I'd like to build a nixie tube version and a remote wireless display A buffered output after the range select would be good too - as a ready made output for a frequency counter and/or tone ohm module. Chris. |
| xani:
--- Quote from: EEVblog on February 01, 2010, 12:35:28 am --- --- Quote from: desolatordan on February 01, 2010, 12:29:49 am ---There's a lot of overhead when using Arduino language, http://hackaday.com/2010/01/06/arduino-io-speed-breakdown/. The only way around this is to bypass the Arduino abstraction, in which case you might as well not use it anyways and just use gcc compiler. --- End quote --- I don't see speed being an issue in this app. But the benefits of using Arduino are potentially quite large. Dave. --- End quote --- Aaand You don't have to use it, you can just use plain GCC so it's best of both worlds |
| badSCR:
We could do something similar to http://www.buglabs.net --- Quote from: GeekGirl on January 31, 2010, 12:36:00 pm ---.... My original idea was to build a "Bench Meter" with good specs (higher than my Fluke 29). Now people are indicating that they would like an entire DIY lab.... I have no problem with this. I personally think that if we design an open protocol for comms, we can hang anything off it :) .... --- End quote --- I would prefer a design that I can trust with good specs, over something that has low specs and does everything. With a modular design, we could have a "Bench Meter" with good specs (higher than my Fluke 29) or even higher. We could do a whole line of DIY equipment. |
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