Asked
— Edited
Resolved by EEGbiofeedback!
My turn to ask a question for a change
My MMA7455 arrived today but I'm struggling to get them to register anything when connected. Just wondered if I had it connected up right or if I need to do anything extra.
My wires are about 1" long, connected to VCC, ground, SDA and SCL on the MMA and on the EZ-B.
I'm using a simple breakout board which uses the MMA datasheet here.
Schematic of the breakout board is;
Update/Edit: I think I may need to set the CS pin high, i.e. 5v. Is that correct? I don't want to fry the EZ-B or the MMA.
Winstn,
My board is identical to the image Rich posted. The best I can say is I got it from Amizon and China.
FYI I now have it hooked with all wires over 8 inches long and it's still working perfectly. I'm attaching it to two servos with two tires and am starting some balance testing now.
Bill
Hi Bill I'm really interested to hear how you get on keep us posted
I have no idea why but after making up yet another cable for this it is working fine. Nothing any different to the first 2 other than the length on the first attempt (that was about 1" this is about 4" long). I guess it's just one of those things.
Thanks to all for the advice and help on this.
@IEEEbiofeedback,
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Hope this helps.