Add command ``SSerialConfig <serialconfig>`` to change Serial Bridge configuration

Add command ``SSerialConfig <serialconfig>`` to change Serial Bridge configuration

CHANGELOG.md

@@ -3,8 +3,11 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased] - Development
 
-## [10.1.0.2]
+## [10.1.0.3]
+### Added
+- Command ``SSerialConfig <serialconfig>`` to change Serial Bridge configuration
 
+## [10.1.0.2] 20211225
 ### Changed
 - TasmotaSerial library from v3.3.0 to v3.4.0 - reverted (#14153)
 - Force initial serial configuration even if no serial GPIO's are enabled (#14153)
@@ -14,7 +17,7 @@ All notable changes to this project will be documented in this file.
 ### Fixed
 - Serial broken after #14153 - reverted
 
-## [10.1.0.1]
+## [10.1.0.1] 20211223
 ### Added
 - PWM Dimmer two button support (#13993)
 - Device Group Send full status item (#14045)

RELEASENOTES.md

@@ -100,8 +100,9 @@ The latter links can be used for OTA upgrades too like ``OtaUrl http://ota.tasmo
 
 [Complete list](BUILDS.md) of available feature and sensors.
 
-## Changelog v10.1.0.2
+## Changelog v10.1.0.3
 ### Added
+- Command ``SSerialConfig <serialconfig>`` to change Serial Bridge configuration
 - PWM Dimmer two button support [#13993](https://github.com/arendst/Tasmota/issues/13993)
 - Device Group Send full status item [#14045](https://github.com/arendst/Tasmota/issues/14045)
 - Support for MAX7219 Dot Matrix displays [#14091](https://github.com/arendst/Tasmota/issues/14091)

tasmota/i18n.h

@@ -548,6 +548,7 @@
 // Commands xdrv_08_serial_bridge.ino
 #define D_CMND_SSERIALSEND "SSerialSend"
 #define D_CMND_SBAUDRATE "SBaudrate"
+#define D_CMND_SSERIALCONFIG "SSerialConfig"
   #define D_JSON_SSERIALRECEIVED "SSerialReceived"
 
 // Commands xdrv_09_timers.ino

tasmota/settings.h

@@ -487,8 +487,9 @@ typedef struct {
   int32_t       energy_kWhyesterday_ph[3]; // 320
   int32_t       energy_kWhtotal_ph[3];     // 32C
 
-  uint8_t       free_338[7];               // 338
+  uint8_t       free_338[6];               // 338
 
+  uint8_t       sserial_config;            // 33E
   uint8_t       tuyamcu_topic;             // 33F  Manage tuyaSend topic. ex_energy_power_delta on 6.6.0.20, replaced on 8.5.0.1
   uint16_t      domoticz_update_timer;     // 340
   uint16_t      pwm_range;                 // 342
@@ -595,10 +596,10 @@ typedef struct {
 
   uint16_t      influxdb_port;             // 4CE
   power_t       interlock[MAX_INTERLOCKS_SET];  // 4D0 MAX_INTERLOCKS = MAX_RELAYS / 2
-
   int8_t        shutter_tilt_config[5][MAX_SHUTTERS];  //508
   int8_t        shutter_tilt_pos[MAX_SHUTTERS];        //51C
   uint16_t      influxdb_period;           // 520
+
   uint8_t       free_522[10];              // 522
 
   uint16_t      mqtt_keepalive;            // 52C

tasmota/settings.ino

@@ -1472,6 +1472,9 @@ void SettingsDelta(void) {
 #endif
       }
     }
+    if (Settings->version < 0x0A010003) {
+      Settings->sserial_config = Settings->serial_config;
+    }
 
     Settings->version = VERSION;
     SettingsSave(1);

tasmota/tasmota_version.h

@@ -20,6 +20,6 @@
 #ifndef _TASMOTA_VERSION_H_
 #define _TASMOTA_VERSION_H_
 
-const uint32_t VERSION = 0x0A010002;
+const uint32_t VERSION = 0x0A010003;
 
 #endif  // _TASMOTA_VERSION_H_

tasmota/xdrv_08_serial_bridge.ino

@@ -28,10 +28,10 @@
 const uint8_t SERIAL_BRIDGE_BUFFER_SIZE = 130;
 
 const char kSerialBridgeCommands[] PROGMEM = "|"  // No prefix
-  D_CMND_SSERIALSEND "|" D_CMND_SBAUDRATE;
+  D_CMND_SSERIALSEND "|" D_CMND_SBAUDRATE "|" D_CMND_SSERIALCONFIG;
 
 void (* const SerialBridgeCommand[])(void) PROGMEM = {
-  &CmndSSerialSend, &CmndSBaudrate };
+  &CmndSSerialSend, &CmndSBaudrate, &CmndSSerialConfig };
 
 #include <TasmotaSerial.h>
 
@@ -43,8 +43,32 @@ int serial_bridge_in_byte_counter = 0;
 bool serial_bridge_active = true;
 bool serial_bridge_raw = false;
 
-void SerialBridgeInput(void)
-{
+/********************************************************************************************/
+
+bool SetSSerialBegin(void) {
+  uint32_t config;
+#ifdef ESP8266
+  config = pgm_read_byte(kTasmotaSerialConfig + Settings->sserial_config);
+#endif  // ESP8266
+#ifdef ESP32
+  config = pgm_read_dword(kTasmotaSerialConfig + Settings->sserial_config);
+#endif  // ESP32
+  return SerialBridgeSerial->begin(Settings->sbaudrate * 300, config);         // Reinitialize serial port with new baud rate
+}
+
+void SetSSerialConfig(uint32_t serial_config) {
+  if (serial_config > TS_SERIAL_8O2) {
+    serial_config = TS_SERIAL_8N1;
+  }
+  if (serial_config != Settings->sserial_config) {
+    Settings->sserial_config = serial_config;
+    SetSSerialBegin();
+  }
+}
+
+/********************************************************************************************/
+
+void SerialBridgeInput(void) {
   while (SerialBridgeSerial->available()) {
     yield();
     uint8_t serial_in_byte = SerialBridgeSerial->read();
@@ -106,7 +130,7 @@ void SerialBridgeInit(void)
   serial_bridge_active = false;
   if (PinUsed(GPIO_SBR_RX) && PinUsed(GPIO_SBR_TX)) {
     SerialBridgeSerial = new TasmotaSerial(Pin(GPIO_SBR_RX), Pin(GPIO_SBR_TX), HARDWARE_FALLBACK);
-    if (SerialBridgeSerial->begin(Settings->sbaudrate * 300)) {  // Baud rate is stored div 300 so it fits into 16 bits
+    if (SetSSerialBegin()) {
       if (SerialBridgeSerial->hardwareSerial()) {
         ClaimSerial();
         serial_bridge_buffer = TasmotaGlobal.serial_in_buffer;  // Use idle serial buffer to save RAM
@@ -168,16 +192,36 @@ void CmndSSerialSend(void)
   }
 }
 
-void CmndSBaudrate(void)
-{
+void CmndSBaudrate(void) {
   if (XdrvMailbox.payload >= 300) {
     XdrvMailbox.payload /= 300;  // Make it a valid baudrate
     Settings->sbaudrate = XdrvMailbox.payload;
-    SerialBridgeSerial->begin(Settings->sbaudrate * 300);  // Reinitialize serial port with new baud rate
+    SetSSerialBegin();
   }
   ResponseCmndNumber(Settings->sbaudrate * 300);
 }
 
+void CmndSSerialConfig(void) {
+  // See TasmotaSerialConfig for possible options
+  // SSerialConfig 0..23 where 3 equals 8N1
+  // SSerialConfig 8N1
+
+  if (XdrvMailbox.data_len > 0) {
+    if (XdrvMailbox.data_len < 3) {                    // Use 0..23 as serial config option
+      if ((XdrvMailbox.payload >= TS_SERIAL_5N1) && (XdrvMailbox.payload <= TS_SERIAL_8O2)) {
+        SetSSerialConfig(XdrvMailbox.payload);
+      }
+    }
+    else if ((XdrvMailbox.payload >= 5) && (XdrvMailbox.payload <= 8)) {
+      int8_t serial_config = ParseSerialConfig(XdrvMailbox.data);
+      if (serial_config >= 0) {
+        SetSSerialConfig(serial_config);
+      }
+    }
+  }
+  ResponseCmndChar(GetSerialConfig(Settings->sserial_config).c_str());
+}
+
 /*********************************************************************************************\
  * Interface
 \*********************************************************************************************/