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syoo15 / AD5933_ARDUINO_Biomass

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connect betwen arduino and EVAL-AD5933EBZ #1

Open chen31729 opened 6 years ago

chen31729 commented 6 years ago

Can you show the pictures that how do you connecy them? Due to i had read EVAL-AD5933EBZ's datasheet but i found that the boards SDA，SCL are not connected to anything on the board，thanks

syoo15 commented 6 years ago

Hello chen. I do not have a photo of it right now, and I understand SDA/SCL lines are not present on the EVAL board. You can use test points on the board (T5 and T6) which are connected to SDA/SCL of AD5933 chip. Hope this is helpful to you.

chen31729 commented 6 years ago

Hello syoo15.

I tried connecting T5, T6, but it didn't seem to work. Then I see the datasheet again at analog.com。The URL is as follows: http://www.analog.com/media/en/technical-documentation/user-guides/UG-364.pdf

The page 23's Figure 39. EVAL-AD5933EBZ USB Schematic，the T5，T6 is connect to AD5933's CS and DOUT pins，SDA，SCL are not connected to anything。

Maybe I leave my mail and we can quickly contact? chen31729@gmail.com

Thanks

aviadmegira commented 3 years ago

Hey, someone succeed to connect SDA and SCL from the board to Arduino? I didn't find any connection to SDA or SCL on the board.

sincerely

aviadmegira commented 3 years ago

My mail is: aviadmegira3@gmail.com

SilexxD commented 2 years ago

Hey, for the connection between the arduino and the EVAL-AD5933 EBZ you have to:

  1. solder wires to the resistors R15 and R16 of the evaluation board to bypass the internal SCL and SDA lines as shown in this discussion: https://ez.analog.com/dds/f/q-a/29168/how-to-measure-the-impedance-charactersistics-of-a-unknown-valued-resistor-or-capacitor-using-ad5933-please-help-friends
  2. connect Pin A4 and A5 of the arduino to the soldered wires
  3. connect 5 V output of the arduino to VDD-EXT on the EVAL Board and GND of the arduino to DGND (i think it was jumper J2)
  4. connect the original USB cable of the EVAL board to the USB-in port on the board and the other end to any 5V power supply to power up the board (the arduino can't power the board unless you have one with a USB out power supply port)

That's how it worked for me, but it's a bit complicated Hope that it helps