diff --git a/docs/Board - CC3D.md b/docs/Board - CC3D.md index e7a6d6721..743232df1 100644 --- a/docs/Board - CC3D.md +++ b/docs/Board - CC3D.md @@ -11,7 +11,22 @@ The board has a USB port directly connected to the processor. Other boards like have an on-board USB to uart adapter which connect to the processor's serial port instead. Currently there is no support for virtual com port functionality on the CC3D which means that cleanflight -does not use the USB socket at all. +does not currently use the USB socket at all. + +# Pinouts + +The 8 pin RC_Input connector has the following pinouts. + +| Pin | Function | Notes | +| --- | ---------| ------| +| 1 | Ground | | +| 2 | +5V | | +| 3 | PPM Input | Enable `feature RX_PPM` | +| 4 | Unused | | +| 5 | Softserial1 RX | Enable `feature SOFTSERIAL` | +| 6 | Softserial1 TX | Enable `feature SOFTSERIAL` | +| 7 | Battery Voltage sensor | Enable `feature VBAT`. Connect to main battery using a voltage divider, 0v-3.3v input | +| 8 | Current | Enable `feature CURRENT_METER`. Connect to the output of a current sensor, 0v-3.3v input | # Serial Ports @@ -19,7 +34,7 @@ does not use the USB socket at all. | ----- | ------------ | -------------- | -----------------------------------------| | 1 | USART1 | MAIN PORT | Has a hardware inverter for SBUS | | 2 | USART3 | FLEX PORT | | -| 3 | SoftSerial | RC connector | pins 5 and 6 (Rx and Tx respectively) | +| 3 | SoftSerial | RC connector | Pins 5 and 6 (Rx and Tx respectively) | The Softserial port is not available when RX_PARALLEL_PWM is used. The transmission data rate is limited to 19200 baud.