Datasheet

MOSI is connected to 4050 pin 12 (yellow wire)

SSEL is connected to 4050 pin 15& (green wire)

GND connects to Arduino ground (black wire)

Also connect 4050 pin #1 to 3.3V and pin #8 to ground.

Click to see a larger image. The red power wire should be connected to the 3.3v pin on the Arduino!

Also, we need to select SPI as the interface so on SEL1 place the jumper in the ON position. for SEL0 place the jumper

in the OFF position.

That's it! Later on you can change what Arduino pins you are using but for the beginning test we suggest matching our

wiring.

If you are using the breakout in I2C mode, you will also need to add two 1.5K pullups on the SCL/SDA lines,

since the breakout and the Arduino don't include the pullups. Simply solder or add a 1.5K resistor between

SCL and 3.3V, and SDA and 3.3V, and then connect the breakout as you normally would.