Datasheet

Solder the two small pieces to the SEL0 and SEL1 pads. These are interface selectors for the chip. Depending on how

the jumpers are inserted the chip will talk in TTL serial, i2c or SPI

Also solder a strip to the end so you can plug it into

a breadboard.

Wire up the 4050 level shifter chip to the Arduino as shown. The notch in the 4050 is at the 'top' in this image.

Arduino digital pin 2 is connected to 4050 pin 9 (orange wire)

Arduino digital pin 3 is connected to 4050 pin 11(yellow wire)

Arduino digital pin 4 is connected to 4050 pin 14 (green wire)

On the breakout board

3.3Vin is connected to the Arduino 3.3V pn

SCK is connected to 4050 pin 10 (orange wire)

MISO is connected to Arduino pin 5 (blue wire)