Hi,
It looks like you are powering the unit from the UNO.
That unit is capable of consuming 1.3A when operating, you need a separate supply for it, do not use the UNO 5V pin.
Read the sheets you have posted.
Tom..... 
Hi,
It looks like you are powering the unit from the UNO.
That unit is capable of consuming 1.3A when operating, you need a separate supply for it, do not use the UNO 5V pin.
Read the sheets you have posted.
Tom.....