.

Author: qqqlab

platformio.ini

@@ -66,8 +66,8 @@ build_flags =
     -D PIO_FRAMEWORK_ARDUINO_ENABLE_FREERTOS ; Required: Enable FreeRTOS
 ;    -D USE_TINYUSB                          ; Optional but not recommended: It adds USB SDCARD mass storage, but USB Serial does not work nicely with USE_TINYUSB
 
-; Use arduino-pico version 5 or later. A fixed version is used here, not #master, to prevent long downloads each time the source repository is updated
-platform_packages = framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git#5.5.0
+; Use arduino-pico version 5 or later. A fixed version is used here, not #master, to prevent long downloads when the source repository is updated
+platform_packages = framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git#5.5.1
 
 ; Optional: Debugprobe debugger - see Appendix A "Getting started with Raspberry Pi Pico-series"
 ;debug_tool = cmsis-dap

src/bbx/BbxGizmoOpenlog.h

@@ -0,0 +1,72 @@
+/*==========================================================================================
+MIT License
+
+Copyright (c) 2026 https://madflight.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+===========================================================================================*/
+
+#pragma once
+
+#include "bbx.h"
+#include "../hal/hal.h"
+
+class BbxGizmoOpenlog : public BbxGizmo {
+private:
+  BbxConfig *config;
+  MF_Serial *ser;
+  BbxGizmoOpenlog() {} //private constructor
+
+public:
+  static BbxGizmoOpenlog* create(BbxConfig *config) {
+    if(config->bbx_baud <= 0) config->bbx_baud = 115200;
+    MF_Serial *ser = hal_get_ser_bus(config->bbx_ser_bus, config->bbx_baud);
+    if(!ser) {
+      Serial.println("BBX: ERROR invalid serial port");
+      return nullptr;
+    }
+    auto gizmo = new BbxGizmoOpenlog();
+    gizmo->config = config;
+    gizmo->ser = ser;
+    return gizmo;
+  }
+
+  void write(const uint8_t *buf, const uint8_t len) override {
+    ser->write((uint8_t*)buf, len);
+  }
+
+  void printSummary() override {
+    Serial.printf("BBX: Openlog on serial%d at %d baud\n", config->bbx_ser_bus, config->bbx_baud);
+  }
+
+  void info() override {
+    printSummary();
+  }
+
+  bool writeOpen() override {
+    return true;
+  }
+
+  void setup() override {}
+  void close() override {}
+  void erase() override {}
+  void dir() override {}
+  void bench() override {}
+  int read(const char* filename, uint8_t **data) override {return 0;}
+};

src/bbx/bbx.cpp

@@ -26,6 +26,7 @@ SOFTWARE.
 
 #include "../madflight_modules.h"
 #include "BinLogWriter.h"
+#include "BbxGizmoOpenlog.h"
 
 //create global module instance
 Bbx bbx;
@@ -38,20 +39,15 @@ Bbx bbx;
   #include "BbxGizmoSdcard_RP2.h"
   #include "../hal/RP2040/pio_registry.h"
 
-  int Bbx::gizmo_create() {
-    //create gizmo
-    delete gizmo;
+  void Bbx::gizmo_create_sd() {
     switch(config.gizmo) {
-      case Cfg::bbx_gizmo_enum::mf_NONE :
-        break;
       case Cfg::bbx_gizmo_enum::mf_SDSPI :
       case Cfg::bbx_gizmo_enum::mf_SDMMC :
         pio_registry_name_unclaimed("1Sdcard");
         gizmo = BbxGizmoSdcard::create(&config); //Note: Sdfat claims a full PIO including 4 SM
         pio_registry_name_unclaimed("Sdcard");
         break;
     }
-    return 0;
   }
 
 #elif defined ARDUINO_ARCH_ESP32
@@ -61,42 +57,40 @@ Bbx bbx;
     #undef BBX_USE_MMC
     #include "BbxGizmoSdspi+Sdmmc_ESP32.h"
 
-  int Bbx::gizmo_create() {
-    //create gizmo
+  void Bbx::gizmo_create_sd() {
     switch(config.gizmo) {
-      case Cfg::bbx_gizmo_enum::mf_NONE :
-        break;
       case Cfg::bbx_gizmo_enum::mf_SDSPI :
         gizmo = new BbxGizmoSdspi(&config);
         break;
       case Cfg::bbx_gizmo_enum::mf_SDMMC :
         gizmo = new BbxGizmoSdmmc(&config);
         break;
-      return -1001;
-        break;
     }
-    return 0;
   }
 
 #else
-  int Bbx::gizmo_create() {
-    if(config.gizmo != Cfg::bbx_gizmo_enum::mf_NONE) {
-      Serial.println("\n" MF_MOD ": ERROR BBX not available for this processor\n");
-      return -1001;
-    }
-    return 0;
+  void Bbx::gizmo_create_sd() {
+    Serial.println("\n" MF_MOD ": ERROR BBX not available for this processor\n");
   }
 #endif
 
-
 int Bbx::setup() {
   cfg.printModule(MF_MOD);
 
   //create gizmo
   delete gizmo;
   gizmo = nullptr;
-  int rv = gizmo_create();
-  if(rv!=0) return rv;
+  switch(config.gizmo) {
+    case Cfg::bbx_gizmo_enum::mf_NONE :
+      break;
+    case Cfg::bbx_gizmo_enum::mf_SDSPI :
+    case Cfg::bbx_gizmo_enum::mf_SDMMC :
+      gizmo_create_sd();
+      break;
+    case Cfg::bbx_gizmo_enum::mf_OPENLOG :
+      gizmo = BbxGizmoOpenlog::create(&config);
+      break;
+  }
 
   //setup BinLogWriter
   BinLogWriter::setup();

src/bbx/bbx.h

@@ -42,12 +42,14 @@ struct BbxConfig {
     int32_t pin_mmc_dat = -1;
     int32_t pin_mmc_clk = -1;
     int32_t pin_mmc_cmd = -1;
+    int32_t bbx_ser_bus = -1;
+    int32_t bbx_baud = 0;
 };
 
 class BbxGizmo {
 public:
   virtual ~BbxGizmo() {}
-  virtual void setup() = 0; //setup the file system (can be called multiple times)
+  virtual void setup() = 0; //setup the gizmo
 
   virtual bool writeOpen() = 0; //create new file for writing (closes previously opened file first)
   virtual void write(const uint8_t *buf, const uint8_t len) = 0; //write to file
@@ -64,7 +66,7 @@ class BbxGizmo {
 
 class Bbx {
   private:
-    int gizmo_create();
+    void gizmo_create_sd();
 
   public:
     BbxConfig config;

src/cfg/cfg.h

@@ -196,7 +196,7 @@ SOFTWARE.
   MF_PARAM( bat_i2c_adr,       0, int32_t, 'i') \
 \
   /*BBX - Black Box Data Logger*/ \
-  MF_PARAM( bbx_gizmo,         0, int32_t, 'e', mf_NONE,mf_SDSPI,mf_SDMMC) \
+  MF_PARAM( bbx_gizmo,         0, int32_t, 'e', mf_NONE,mf_SDSPI,mf_SDMMC,mf_OPENLOG) \
   MF_PARAM( bbx_spi_bus,      -1, int32_t, 'i') \
 \
   /*GPS*/ \
@@ -264,6 +264,10 @@ SOFTWARE.
   MF_PARAM( bbx_log_out,     100, int32_t, 'i') /* Max log interval in [Hz] for OUT*/ \
   MF_PARAM( bbx_log_ahr,     100, int32_t, 'i') /* Max log interval in [Hz] for AHR*/ \
   MF_PARAM( bbx_log_rcl,     100, int32_t, 'i') /* Max log interval in [Hz] for RCL*/ \
+\
+  /*v2.3.1 additions */ \
+  MF_PARAM( bbx_ser_bus,      -1, int32_t, 'i') \
+  MF_PARAM( bbx_baud,          0, int32_t, 'i') \
 \
 //end MF_PARAM_LIST
 

src/madflight.h

@@ -165,6 +165,8 @@ void madflight_setup() {
   bbx.config.pin_mmc_dat = cfg.pin_mmc_dat;
   bbx.config.pin_mmc_clk = cfg.pin_mmc_clk;
   bbx.config.pin_mmc_cmd = cfg.pin_mmc_cmd;
+  bbx.config.bbx_ser_bus = cfg.bbx_ser_bus;
+  bbx.config.bbx_baud = cfg.bbx_baud;
   bbx.setup();
 
   // USB - Start USB-CDC (Serial) and USB-MSC (if sdcard is inserted)