Frequency Counter
Frequency Counter
http://sharon.esrac.ele.tue.nl/mirro.../CNTR/CNTR.htm
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Mini DDS (Direct Digital Synthesis)
Mini DDS (Direct Digital Synthesis)
http://www.myplace.nu/avr/minidds/index.htm
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Build your own Test Equipment !!!
Thank-You Max for posting this circuit . I wonder How much a cheap atmel programmer is ? One that can do everything and is complete ! Also , my question for you is , are the Zilog series of micro-controllers any Good ?? I think a couple of Bounty Hunter models use a zilog controller ? . I will check back in a few days .............Thank-You.............Eugene52Leave a comment:
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Hi,Originally posted by Eugene52 View Post
a good voltmeter/ammeter project is here:
http://elfly.pl/multimetr/multimetr_en_DIP.htm
there's also smd version in another page.
The stuff is about easy, and use an atmega8 mcu + a standard 16x1 or 16x2 lcd (with or without backlight).
The advantage is that's a stand-alone meter... can use everywhere, also on existing psu, analog kind etc.
Kind regards,
MaxLeave a comment:
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Build your own Test Equipment !!!
Thank-You aft_72005, I will be off the forum for 6 weeks , work related !!!!!!!Take Care Everyone !!!!!!Eugene52Leave a comment:
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Hi Eugene52
Epe magazine published lcf meter with pic microcontroller . I didn’t build it
,but believe it is simple and effective . I having article complete.
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Looking for a Cheap "LCR Meter Project" !!
Not too many "LCR Meter" schematics are floating around the internet . I found out that there is LCR meter information in a July 1998 issue of "Electronics Now" , photo is attached . I sure would like to see the article and the schematics , and also any other LCR projects . I guess they generate a frequency of 1 khz to calculate a unknown inductance or capacitance . Almost all circuits I have seen , use a PIC-Chip or similar controller. Anyone have a good LCR circuit schematic hidden somewhere ???................Regards..............EugeneLeave a comment:
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Build your own Test Equipment !!!
Very Nice !!! I see the schematic , the parts list and the photo of the other LCD project , but they do not give any prices !!! Like if you want to buy the PCB board of the 1st power supply ?? ...Thanks for posting Carlos................EugeneLeave a comment:
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Si, es correcto lo que dices, aca usan cable comun para cada entrada, solamente cable blindado con BNC para la conexion en la entrada del scope y el sincronismo. Si alguien maneja mejor el ingles que yo, podria traducir el articulo ya que no tiene ningun desperdicio su lectura. yo cuando tenga tiempo lo hare para un total de 4 canales ya que mi nuevo scope portatil es monocanal. Sobre el medidor de inductancias, hice alguna vez uno pero se necesita un frecuencimetro para que con la formula Thomson se descubra el valor de la inductancia. Por eso me compre un MASTECH MS-8222H.
Saludos
Carlos
yes, what you say is correct, here the common cable used for each entry, only shielded cable with BNC to connect at the entrance and synchronism. If someone manages to better English than me, you could translate the article because it has no waste of the reader. when I have time I will, for a total of 4 channels because my new scope is a single channel. Inductances meter, but I did ever a need for a frequency with which the discovery was made Thomson the value of the inductor. That's why I buy a MASTECH MS-8222H.
Greetings
CarlosLeave a comment:
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Build your own Test Equipment !!!
Carlos , Hello again . Is this a 8 channel oscilloscope input adapter ?? Will it accept a standard oscilloscope probe for each input ? Say 50 a ohm impedance to 100 mhz probe ?? Do not forget "Inductance Meter Circuit" next "please" !!!.......Thank-You................EugeneLeave a comment:
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