Geeetech

Posted: **Wed May 13, 2015 4:33 pm**

Hi,

I just installed an Arduino Mega Sensor Shield on my Due. The problem is that all of the VCC connections on the sensor are 5 volts. I am glad I did not plug in any sensors yet!!!

This is not compatible with the 3.3 sensors which I will use with Due or the I/O of the sensors.

Is there a connection on the board I can change to route the 3.3 volt supply to the pins?

Can you share a schematic?

Many Thanks,

Joe

Posted: **Wed May 13, 2015 5:50 pm**

Sorry, we don't have schematics.
You can get 3.3V power from this pin:

: QQ图片20150513174748.jpg (25.02 KiB) Viewed 8960 times

Posted: **Wed May 13, 2015 5:56 pm**

I have the V4 version of the sensor shield.

I want to disconnect 5v from UART, I2C etc.

How would I do that?

The company that sold me the cards said they would work with Due, but that is clearly a problem since the shield brings 5V to the connectors instead of 3.3V

Posted: **Thu May 14, 2015 6:04 am**

I have this version of the sensor shield.

Can you please help with that?

Posted: **Thu May 14, 2015 10:39 am**

Sorry, I can not see the picture.
Here is the PCB schematics of Mega V4. You can disconnect 5V power, and connect it 3.3V pins, then all the VCC will be 3.3V

Geeetech

Due and Sensor Shield Problems. I need help

Due and Sensor Shield Problems. I need help

Re: Due and Sensor Shield Problems. I need help

Re: Due and Sensor Shield Problems. I need help

Re: Due and Sensor Shield Problems. I need help

Re: Due and Sensor Shield Problems. I need help