cleanflight/cleanflight — pull request #159 by Pierre-A (2014-11-07 08:47:23+00:00)
Title: RSSI monitoring on CC3D

RSSI monitoring is implemented on CC3D.
This has needed remapping the RC_input connector as the Stm32f103 PB5 line (previous unused RC4 pin) has no ADC converter. The RC_input connector is now :
RC1 : ground
RC2 : + 5V
RC3 : PPM
RC4 : Tx Softserial port
RC5 : Rx Softserial port
RC6 : Current
RC7 : Vbattery
RC8 : RSSI

As a side effect, Current and RSSI use the same PA1 and PB1 lines than other boards, resulting in a "Cleaner" coding.

A PPM->RSSI conditionner is needed (see diagram in pull request #150).