TBS Tracer Manual
Receiver functions
Output map
On all receivers you can select what it should output on each pin. The available options for each differ for
the receivers:
Receiver pin
Output type Nano Rx/ 6Ch Nano Pwm Rx
Default value
1
PWM Ch1 to 12, PPM, RSSI, LQ, RSSI/LQ, SBUS, n.i. SBUS,
CRSF TX, MAVLink TX, SmartAudio, DSMX
CRSF TX
2
PWM Ch1 to 12, PPM, RSSI, LQ, RSSI/LQ, CRSF RX,
MAVLink RX
CRSF RX
3
PWM Ch1 to 12, PPM, RSSI, LQ, RSSI/LQ, CRSF RX,
MAVLink RX
PWM Ch. 3
4
PWM Ch1 to 12, PPM, RSSI, LQ, RSSI/LQ, SBUS, n.i. SBUS,
CRSF TX, MAVLink TX, SmartAudio, DSMX
Smart Audio
5 (BST)
PWM Ch1 to 12, RSSI, LQ, RSSI/LQ, BST SDA
BST SDA
6 (BST)
PWM Ch1 to 12, RSSI, LQ, RSSI/LQ, BST SCL
BST SCL
CRSF
CRSF is a protocol designed by Team BlackSheep and championed through the TBS Crossfire and now TBS
Tracer remote control system. It has been integrated into most popular remote controls, is an incredibly
high bandwidth (low latency), full duplex serial data transmission protocol. It comes with native
functionality such as OTA (over the air) firmware upgrades, localized configuration menus and a smart
routing protocol. It is by far the most advanced R/C protocol available to date.
CRSF can be selected on multiple outputs at the same time to connect several devices at once
Serial
The bridge feature gives you the ability to pass any kind of serial uart data from any device connected to
the receiver to any device connected to the transmitter. If you selected “Bridge TX” on a capable pin the
following pin will be set to “Bridge Rx” and the following to “Bridge RTS” (if not used by any other Serial
protocol). Please connect your device according to this information. The baud rate is set to 57600 8N1 and
the voltage level is 3.3V only. The RTS pin will change to logical high when the internal FIFO is almost full
and low if the FIFO is almost empty. There is no hardware flow control for the uplink as the wireless close
range telemetry module does not support it.
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