Mini Osciloscopio com PIC - Mini Scope with PIC 18F4520

[mhs4com]

i hope to have like your skills

[0001MacintoshUser]

congratulations!, excellent work

[perazaroberto2]

can you show me esquema please .draw circuit .

[jjssggdd]

Great..!!

[DaniloDetoner]

olá amigo , você poderia me passar o site com o esquema do projeto ? obrigado

[ale740]

Hi: This is a smart job. I am building a 89s52 based digital oscilloscope, firts storing samples into internal ram next step is drawing into GLCD. Whic GLCD do you recommend? some use negative high voltages thats bad. other issue: drawing solid lines between high frecuency samples.

[molinobeer]

Where did you get that LCD?

[maxidiax]

genial

[ritindeeps]

can you made this using psoc?

[taimooribhatti]

It seems you're collecting samples of voltage and storing them in a memory. Then displaying them on screen... Right? Good work by the way.

Any troubles interfacing the LCD? :D

[pianoguyyy]

yeah cool stuff. sadly it's about only 500 Khz bandwith

[snowman4839]

dude thats amazing. Great Job

[mreza84]

Good work, great A++++

[alcomen]

tks.

[ask2vinay]

when can i find full project details?

[erhanharm]

Could you share your project documents sir?

[josuecarnivoro]

You should program a function to redraw onñy the pixels that change and then send it to the GLCD to reduce the flicker.

[alcomen]

I have two news versions this project. One in MSP430 and PIC. In this new versions, this problem (flinker) was resolved. tks.

[r0nd0m]

Youre awesome :o

[lunatunatic]

Maybe you should consider using the propeller chip. It has 8 internal "cores" and 80mhz clock as far as I remember.. Then you would have plenty of computing power to do both screen update and measuring :)

Actually you could output the data to a tv or monitor instead, as the processor easily can produce even color PAL signal or RGB vga signal. :) Could be a nice "next project"

[mindthomas]

What language is it programmed in?

[alcomen]

I used C Language.

[xm07]

Why the hell it's so slow? I have similar scope at LCD 128*64 powered by 3 89C2051 (shitty little MCUs, but that was only MCU for my simple programer) and it was pretty fast - some 25FPS if sampling rate was high enough.

[alcomen]

because in this example, he is acqiring and store in flash memory (I2C) the points meassured, this way, two task.

[WarriorFootball]

real nice bro. Have you tought about making this using touch screen and having all of the feture via touch screen. that would be great. Imagine touch screen oscope.

[alcomen]

Really would be very good. Still can not touch display one with a good price here. TKS.

[cXorp]

i think that thing havent a trigger mechanism and refresh rate is bad :( apart from this is good job

[alcomen]

ok, thanks for your comments. The reflesh mechanism has been improved in current version. But, for the up rate, it is necessary to exchange for an external AD.

[Warndog9]

very nice! whats the frequency range on this?

[alcomen]

Thank you!

In the first version with AD internal, the tax was of approx. 420Ksps. The new version a external AD will be used for results above of 2Msps.