Added 'esc_sensor_halfduplex' setting to enable KISSFC owners to use 'TLM' pads for ESC stelemetry lines.

src/main/config/parameter_group_ids.h

@@ -105,7 +105,8 @@
 #define PG_VCD_CONFIG 514
 #define PG_VTX_CONFIG 515
 #define PG_SONAR_CONFIG 516
-#define PG_BETAFLIGHT_END 516
+#define PG_ESC_SENSOR_CONFIG 517
+#define PG_BETAFLIGHT_END 517
 
 
 // OSD configuration (subject to change)

src/main/fc/settings.c

@@ -32,6 +32,7 @@
 #include "config/parameter_group.h"
 #include "config/parameter_group_ids.h"
 
+#include "sensors/esc_sensor.h"
 #include "sensors/gyro.h"
 
 #include "fc/settings.h"
@@ -689,6 +690,10 @@ const clivalue_t valueTable[] = {
     { "displayport_max7456_col_adjust", VAR_INT8| MASTER_VALUE, .config.minmax = { -6, 0 }, PG_DISPLAY_PORT_MSP_CONFIG, offsetof(displayPortProfile_t, colAdjust) },
     { "displayport_max7456_row_adjust", VAR_INT8| MASTER_VALUE, .config.minmax = { -3, 0 }, PG_DISPLAY_PORT_MAX7456_CONFIG, offsetof(displayPortProfile_t, rowAdjust) },
 #endif
+
+#ifdef USE_ESC_SENSOR
+    { "esc_sensor_halfduplex",          VAR_UINT8  | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_OFF_ON }, PG_ESC_SENSOR_CONFIG, offsetof(escSensorConfig_t, halfDuplex) },
+#endif
 };
 
 const uint16_t valueTableEntryCount = ARRAYLEN(valueTable);

src/main/sensors/esc_sensor.c

@@ -64,6 +64,12 @@ Byte 9: 8-bit CRC
 
 */
 
+PG_REGISTER_WITH_RESET_TEMPLATE(escSensorConfig_t, escSensorConfig, PG_ESC_SENSOR_CONFIG, 0);
+
+PG_RESET_TEMPLATE(escSensorConfig_t, escSensorConfig,
+        .halfDuplex = 0
+);
+
 /*
 DEBUG INFORMATION
 -----------------
@@ -183,7 +189,7 @@ bool escSensorInit(void)
         return false;
     }
 
-    portOptions_t options = (SERIAL_NOT_INVERTED);
+    portOptions_t options = SERIAL_NOT_INVERTED  | (escSensorConfig()->halfDuplex ? SERIAL_BIDIR : 0);
 
     // Initialize serial port
     escSensorPort = openSerialPort(portConfig->identifier, FUNCTION_ESC_SENSOR, escSensorDataReceive, ESC_SENSOR_BAUDRATE, MODE_RX, options);

src/main/sensors/esc_sensor.h

@@ -19,6 +19,12 @@
 
 #include "common/time.h"
 
+typedef struct escSensorConfig_s {
+    uint8_t halfDuplex;             // Set to false to listen on the TX pin for telemetry data
+} escSensorConfig_t;
+
+PG_DECLARE(escSensorConfig_t, escSensorConfig);
+
 typedef struct {
     uint8_t dataAge;
     int8_t temperature;