Topics created by mathieu

@mathieu Hi!

I have sent the initialization code to your e-mail (I have included your full commands there, but not here on the forum).

Basically, the commands are sent in a non-blocking fashion one-by one:

#include <BLEDevice.h> #include <BLEServer.h> #include <BLEUtils.h> #include <BLE2902.h> #include <pgmspace.h> const char* const commands[] PROGMEM = { "|LB UID:lb0 X:20 Y:10\r\n", ... ... ... }; const size_t numCommands = sizeof(commands) / sizeof(commands[0]); namespace uuid { static const char *SERVICE_UUID = "6E400001-B5A3-F393-E0A9-E50E24DCCA9E"; static const char *RX_CHARACTERISTIC_UUID = "6E400002-B5A3-F393-E0A9-E50E24DCCA9E"; static const char *TX_CHARACTERISTIC_UUID = "6E400003-B5A3-F393-E0A9-E50E24DCCA9E"; } // namespace uuid // forward declare parser for incoming messages void parseGuioMsg(const String &msg); // setup done flag bool setupDone = false; // init active flag bool initActive = false; // send command period in msec static const unsigned long sendCommandPeriod = 50; // custom handling of server callbacks class CustomBLEServerCallbacks: public BLEServerCallbacks { void onConnect(BLEServer* pServer) { Serial.println("Connected!"); }; void onDisconnect(BLEServer* pServer) { Serial.println("Disconnected!"); // fix provided by BM // restart advertising after disconnect, otherwise GUI-O cannot re-connect if(setupDone) { // restart advertising on disconnect delay(500); pServer->startAdvertising(); } } }; // custom handling of characteristic callbacks class CustomBLECharacteristicCallbacks: public BLECharacteristicCallbacks { void onWrite(BLECharacteristic *pCharacteristic) { std::string msg = pCharacteristic->getValue(); // parse message string parseGuioMsg(String(msg.c_str())); } }; // global ptr BLECharacteristic *pTxCharacteristic; void setup() { // debug output Serial.begin(115200); // create device BLEDevice::init("BasicBLE_NUS"); // create server and register callback BLEServer *pServer = BLEDevice::createServer(); pServer->setCallbacks(new CustomBLEServerCallbacks()); // create service BLEService *pService = pServer->createService(uuid::SERVICE_UUID); // crate Tx characteristic and add descriptor pTxCharacteristic = pService->createCharacteristic(uuid::TX_CHARACTERISTIC_UUID, BLECharacteristic::PROPERTY_NOTIFY); pTxCharacteristic->addDescriptor(new BLE2902()); // crate Rx characteristic and register callback BLECharacteristic *pRxCharacteristic = pService->createCharacteristic(uuid::RX_CHARACTERISTIC_UUID, BLECharacteristic::PROPERTY_WRITE | BLECharacteristic::PROPERTY_WRITE_NR); pRxCharacteristic->setCallbacks(new CustomBLECharacteristicCallbacks()); // start the service and start advertising pService->start(); pServer->getAdvertising()->start(); // setup done flag setupDone = true; } void loop() { static size_t currentCommandIndex = 0; static unsigned long lastCommandTime = 0; if (initActive) { if (currentCommandIndex < numCommands) { if (millis() - lastCommandTime > sendCommandPeriod) { lastCommandTime = millis(); // retrieve and send the command char commandBuffer[256]; strcpy_P(commandBuffer, (char*)pgm_read_ptr(&commands[currentCommandIndex])); sendMsg(commandBuffer); Serial.print("Sending: "); Serial.println(commandBuffer); currentCommandIndex++; } } else { initActive = false; // hide loading screen sendMsg("@hls\r\n"); } } } /***************************/ /* IMPLEMENT YOUR GUI HERE */ /***************************/ void sendMsg(const String &msg) { pTxCharacteristic->setValue(std::string(msg.c_str())); pTxCharacteristic->notify(); delay(50); } void parseGuioMsg(const String &msg) { if(msg.startsWith("@init")) { Serial.println("GUI-O app is requesting INITIALIZATION!"); // clear screen and set background sendMsg("@cls\r\n"); sendMsg("@guis BGC:#FFFFFF\r\n"); sendMsg("|SORI UID:sori2 HID:sori ORI:2 SEN:0\r\n"); // wait for orientation change (alternatively catch GUI-O screen orientation change event...) delay(500); // show loading screen sendMsg("@sls\r\n"); initActive = true; } }

Can you please test it and see if it works for you?

You can try extending sendCommandPeriod if you have any issues... Also you can comment out the @sls and @hls commands to see exactly what is going on...

Best regards,
Kl3m3n