I'm trying to connect TI's MAX232 to my Arduino so that I can communicate with my PC. I have connected it exactly as the picture shows:
Tx/Rx are not connected because I just wanted to see if I can get proper V+/V- on pin 2 and 6. At Vcc=5V I'm reading 1.9V on both - pin 2 and pin 6. I connected my 1uF capacitors so that the longer leg represents the white part of the capacitor symbol, and the shorter leg is in place of the black part. Should I connect some other signals so that I can read +10/-10V on pin 2 and 6?
See an image of my circuit below. The brown cable is Arduinos GND and the grey cable is Vcc.