* - ( 9) RB3 - CCP1 PWM for red LED
* - (10) RB4 - rocker switch position B (right)
* - (11) RB5 - rocker switch position A (left)
- * - (12) RB6 - unused
- * - (13) RB7 - unused
+ * - (12) RB6 - unused (future crystal)
+ * - (13) RB7 - unused (future crystal)
* - (14) Vdd
* - (15) RA6 - unused
* - (16) RA7 - CCP2 PWM for grn LED