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Topic: Alternative electric sine wave 50Hz analogread ADC for Raspberry (Read 117 times) previous topic - next topic

YacBr

Hello !
i want to use my arduino board as an ADC for the raspberry to make an digital oscillo !
the signal which is acquired is an alternative sine wave with 50 Hz frequency ,
any help ?

MarkT

Which arduino board?  What sample rate do you want?  Total samples fit in RAM?
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

wvmarle

It makes more sense to me to use an external dedicated ADC - you can easily get higher resolution and higher sampling rates for less cost and less effort than doing this through an Arduino. Mind that the Arduino's ADC can do a mere 9k sps at 10 bit resolution. Good enough for many applications, but for a scope it's pretty sad.

By the way, about USD 200 buys you the DSO Quad from Seeed Studio, I got one and really like it. For a scope it's not fast but it can easily display 1-2 MHz signals which is far more than an Arduino could ever dream of.
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