From d19f1a84e3733c74992914a1bada02b9453c65b4 Mon Sep 17 00:00:00 2001 From: JPaehr Date: Sun, 6 Jun 2021 19:51:18 +0200 Subject: [PATCH] init --- include/README | 39 +++++++++++ lib/README | 46 +++++++++++++ platformio.ini | 15 ++++ src/.clang-format | 27 ++++++++ src/main.cpp | 171 ++++++++++++++++++++++++++++++++++++++++++++++ test/README | 11 +++ 6 files changed, 309 insertions(+) create mode 100644 include/README create mode 100644 lib/README create mode 100644 platformio.ini create mode 100644 src/.clang-format create mode 100644 src/main.cpp create mode 100644 test/README diff --git a/include/README b/include/README new file mode 100644 index 0000000..194dcd4 --- /dev/null +++ b/include/README @@ -0,0 +1,39 @@ + +This directory is intended for project header files. + +A header file is a file containing C declarations and macro definitions +to be shared between several project source files. You request the use of a +header file in your project source file (C, C++, etc) located in `src` folder +by including it, with the C preprocessing directive `#include'. + +```src/main.c + +#include "header.h" + +int main (void) +{ + ... +} +``` + +Including a header file produces the same results as copying the header file +into each source file that needs it. Such copying would be time-consuming +and error-prone. With a header file, the related declarations appear +in only one place. If they need to be changed, they can be changed in one +place, and programs that include the header file will automatically use the +new version when next recompiled. The header file eliminates the labor of +finding and changing all the copies as well as the risk that a failure to +find one copy will result in inconsistencies within a program. + +In C, the usual convention is to give header files names that end with `.h'. +It is most portable to use only letters, digits, dashes, and underscores in +header file names, and at most one dot. + +Read more about using header files in official GCC documentation: + +* Include Syntax +* Include Operation +* Once-Only Headers +* Computed Includes + +https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html diff --git a/lib/README b/lib/README new file mode 100644 index 0000000..6debab1 --- /dev/null +++ b/lib/README @@ -0,0 +1,46 @@ + +This directory is intended for project specific (private) libraries. +PlatformIO will compile them to static libraries and link into executable file. + +The source code of each library should be placed in a an own separate directory +("lib/your_library_name/[here are source files]"). + +For example, see a structure of the following two libraries `Foo` and `Bar`: + +|--lib +| | +| |--Bar +| | |--docs +| | |--examples +| | |--src +| | |- Bar.c +| | |- Bar.h +| | |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html +| | +| |--Foo +| | |- Foo.c +| | |- Foo.h +| | +| |- README --> THIS FILE +| +|- platformio.ini +|--src + |- main.c + +and a contents of `src/main.c`: +``` +#include +#include + +int main (void) +{ + ... +} + +``` + +PlatformIO Library Dependency Finder will find automatically dependent +libraries scanning project source files. + +More information about PlatformIO Library Dependency Finder +- https://docs.platformio.org/page/librarymanager/ldf.html diff --git a/platformio.ini b/platformio.ini new file mode 100644 index 0000000..225c53c --- /dev/null +++ b/platformio.ini @@ -0,0 +1,15 @@ +; PlatformIO Project Configuration File +; +; Build options: build flags, source filter +; Upload options: custom upload port, speed and extra flags +; Library options: dependencies, extra library storages +; Advanced options: extra scripting +; +; Please visit documentation for the other options and examples +; https://docs.platformio.org/page/projectconf.html + +[env:esp32dev] +platform = espressif32 +board = esp32dev +framework = arduino +upload_port = COM[6] diff --git a/src/.clang-format b/src/.clang-format new file mode 100644 index 0000000..3967154 --- /dev/null +++ b/src/.clang-format @@ -0,0 +1,27 @@ +--- +# We'll use defaults from the LLVM style, but with 4 columns indentation. +BasedOnStyle: LLVM +IndentWidth: 4 +--- +Language: Cpp +# Force pointers to the type for C++. +DerivePointerAlignment: false +PointerAlignment: Middle +AlignTrailingComments: true +BreakBeforeBraces: Custom +BraceWrapping: + BeforeElse: true +AllowShortBlocksOnASingleLine: false +AllowShortFunctionsOnASingleLine: InlineOnly +AccessModifierOffset: -4 + +ColumnLimit: 100 +--- +Language: JavaScript +# Use 100 columns for JS. +ColumnLimit: 100 +--- +Language: Proto +# Don't format .proto files. +DisableFormat: true +... diff --git a/src/main.cpp b/src/main.cpp new file mode 100644 index 0000000..1981157 --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,171 @@ +#include +/*Program to use GATT service on ESP32 to send Battery Level + * ESP32 works as server - Mobile as client + * Program by: B.Aswinth Raj + * Dated on: 13-10-2018 + * Website: www.circuitdigest.com + */ + +#include +#include +#include //Library to use BLE as server +#include + +//#define TESTMODE 1 + +bool _BLEClientConnected = false; + +#define AlarmService BLEUUID((uint16_t)0x1811) // ialert notification 0x1802 +BLECharacteristic AlarmCharacteristic(BLEUUID((uint16_t)0x2A46), BLECharacteristic::PROPERTY_WRITE); +BLEDescriptor AlarmLevelDescriptor(BLEUUID((uint16_t)0x2901)); + +BLEServer * pServer = NULL; +bool deviceConnected = false; +bool oldDeviceConnected = false; +uint32_t value = 0; + +class MyServerCallbacks : public BLEServerCallbacks { + void onConnect(BLEServer * pServer) { + deviceConnected = true; + _BLEClientConnected = true; + }; + + void onDisconnect(BLEServer * pServer) { + _BLEClientConnected = false; + deviceConnected = false; + } +}; +// uint8_t toggle = 0; +uint8_t alarmFired = 0; +class MyAlarmCallback : public BLECharacteristicCallbacks { + void onWrite(BLECharacteristic * pCharacteristic) { + alarmFired = 1; + // if (toggle) { + // digitalWrite(32, HIGH); + // toggle = 0; + // } + // else { + // digitalWrite(32, LOW); + // toggle = 1; + // } + } +}; + +void InitBLE() { + BLEDevice::init("OilCheck"); + + // Create the BLE Server + BLEServer * pServer = BLEDevice::createServer(); + pServer->setCallbacks(new MyServerCallbacks()); + + // Create BLE Service + BLEService * pAlarm = pServer->createService(AlarmService); + pAlarm->addCharacteristic(&AlarmCharacteristic); + // AlarmLevelDescriptor.setValue("on/off"); + // AlarmCharacteristic.addDescriptor(&AlarmLevelDescriptor); + AlarmCharacteristic.setCallbacks(new MyAlarmCallback); + AlarmCharacteristic.addDescriptor(new BLE2902()); + pServer->getAdvertising()->addServiceUUID(AlarmService); + // pAlarm-> + pAlarm->start(); + + // Start advertising + BLEAdvertising * pAdvertising = BLEDevice::getAdvertising(); + pAdvertising->addServiceUUID(AlarmService); + pAdvertising->setScanResponse(true); + BLEDevice::startAdvertising(); +} + +volatile int ctr; +hw_timer_t * timer = NULL; +portMUX_TYPE timerMux = portMUX_INITIALIZER_UNLOCKED; + +void IRAM_ATTR onTimer() { + portENTER_CRITICAL_ISR(&timerMux); + ctr++; + portEXIT_CRITICAL_ISR(&timerMux); +} + +void setup() { + // upcounting timer 1MHz + timer = timerBegin(0, 40, true); + timerAttachInterrupt(timer, &onTimer, true); + timerAlarmWrite(timer, 100000, true); + timerAlarmEnable(timer); + + // blink led + pinMode(32, OUTPUT); + // status led + pinMode(33, OUTPUT); + + Serial.begin(115200); + Serial.println("Start BLE"); + InitBLE(); +} + +std::string x; +int state = 0; +void loop() { + + // BatteryLevelCharacteristic.setValue(&level, 1); + // BatteryLevelCharacteristic.notify(); + + // x = AlarmCharacteristic.getValue(); + + // occures every 100ms + if (ctr > 0) { + portENTER_CRITICAL(&timerMux); + ctr--; + portEXIT_CRITICAL(&timerMux); +#if defined TESTMODE + if (state % 2 == 0) { + digitalWrite(32, HIGH); + } + else { + digitalWrite(32, LOW); + } + state++; +#else + if (alarmFired) { + if (state % 2 == 0) { + digitalWrite(32, HIGH); + } + else { + digitalWrite(32, LOW); + } + state++; + } +#endif + if (state == 22) { + state = 0; +#if defined TESTMODE + ctr = -20; +#endif + alarmFired = 0; + } + } + + if (deviceConnected) { + digitalWrite(33, HIGH); + // //pCharacteristic->setValue((uint8_t*)&value, 4); + // pCharacteristic->notify(); + // value++; + delay(10); // bluetooth stack will go into congestion, if too many packets are sent, in 6 + // hours test i was able to go as low as 3ms + } + // disconnecting + if (!deviceConnected && oldDeviceConnected) { + digitalWrite(33, LOW); + delay(500); // give the bluetooth stack the chance to get things ready + pServer->startAdvertising(); // restart advertising + Serial.println("start advertising"); + oldDeviceConnected = deviceConnected; + } + // connecting + if (deviceConnected && !oldDeviceConnected) { + // do stuff here on connecting + oldDeviceConnected = deviceConnected; + } + + delay(500); +} \ No newline at end of file diff --git a/test/README b/test/README new file mode 100644 index 0000000..b94d089 --- /dev/null +++ b/test/README @@ -0,0 +1,11 @@ + +This directory is intended for PlatformIO Unit Testing and project tests. + +Unit Testing is a software testing method by which individual units of +source code, sets of one or more MCU program modules together with associated +control data, usage procedures, and operating procedures, are tested to +determine whether they are fit for use. Unit testing finds problems early +in the development cycle. + +More information about PlatformIO Unit Testing: +- https://docs.platformio.org/page/plus/unit-testing.html