I have try to use it, however i found that even i set the value for DAC is only 100, the frequency is still only 67Hz. The things is that there is too many value to sent at a limit of time, so i'm thinking of build myself a DAC that can sent more value at a limit of time. Still don't know how, but i'm working on it
I know about that, but i want to be able to switch different kind of waveform in a matter of clicking the button, able to choose the frequency at will. And I think that only arduino can do it
Are you using the dfrobot code?
It works at 100Hz
cool project!
if you'd like a higher frequency and you're unable to get it higher than 67Hz, then you might:
A: use a different chip.
B: use an Arduino. (or any microcontroller for that matter)
or if you can't do any of those C: get a premade one.
I hope this helps!
I'm waiting for the shipment, since it's not on the market in my country.
Shipment of what? Don't you already have the MCP4725?
well my MCP4725 is not the one that you mention, you introduced me a DFrobot stuff , mine is just MCP4725. I'm sure it is not the one you recommended me
No. I said if you already have the MCP4725 then use it.
Then follow the tutorial on the wepage to make a 100Hz sinewave.
That was 5 days ago and I have not heard anything from you since.
The code on that webpage should work with any MCP4725
Using some kind of microcontroller makes good sense if you want that sort of flexibility. If you want to modify the actual waveform, a DAC is certainly the way to go.
Just be careful...
Its useful to have the data sheet.
Well I dont understand any of that. A DAC converts ONE digital value to a corresponding analog voltage.
I think its time we had some definite information.
So are you using the MCP4725 CHIP or the MCP4725 MODULE (Like this)
And WHICH Arduino are you using? eg a UNO?
And SHOW YOUR CODE - the actual code you are running
Using some kind of microcontroller makes good sense if you want that sort of flexibility. If you want to modify the actual waveform, a DAC is certainly the way to go.
that makes sense!
if he wans to use buttons, it makes sense for him to use a microcontroller!
their PWM is fast enough, and you can program whatever feature into them!
it's still a good idea to use a DAC, to remove high frequency components, for example: the PWM signal.
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