I am writing a custom library (with a custom service and two custom characteristics) which uses the ArduinoBLE library.
Running the code on Nano 33 iot all the characteristics are present and everything works as expected:
but when it runs on Uno R4 WiFi the custom characteristics are not included in the service:
I have already updated the radio module to V: 0.2.0 and updated the ArduinoBLE library (following instructions here: Radio module firmware version 0.2.0 is now available.
Below my code (simplified).
#include <ArduinoBLE.h>
#include "Lib.h"
Lib bleLib;
void setup() {
Serial.begin(115200);
while (!Serial)
;
delay(500);
bleLib.begin();
Serial.println("Ready");
}
void loop() {
BLE.poll();
delay(200);
}
---- Library -----
Lib.h
#ifndef LIB_H
#define LIB_H
#include <ArduinoBLE.h>
class Lib {
private:
BLEService mainService = BLEService("19B10000-E8F2-537E-4F6C-D104768A1214");
BLECharacteristic rxCharacteristic = BLECharacteristic("19B10001-E8F2-537E-4F6C-D104768A1214", BLEWrite, 20, true);
BLECharacteristic txCharacteristic = BLECharacteristic("19B10002-E8F2-537E-4F6C-D104768A1214", BLERead | BLENotify, 20, true);
BLEService batteryService = BLEService("180F");
BLEUnsignedCharCharacteristic batteryLevelChar = BLEUnsignedCharCharacteristic("2A19", BLERead | BLENotify);
bool isConnected;
public:
Lib(void);
void begin(void);
void connected(void);
void disconnected(void);
void dataAvailable(String string);
};
#endif
Lib.cpp
#include <BLECharacteristic.h>
#include "Lib.h"
Lib *myGlobal;
void connectHandler(BLEDevice central);
void disconnectHandler(BLEDevice central);
void characteristicWritten(BLEDevice central, BLECharacteristic characteristic);
Lib::Lib(void) {
isConnected = false;
myGlobal = this;
};
void Lib::begin(void) {
// Initialise the NINA module
Serial.println("Initializing BLE module");
if (!BLE.begin()) {
Serial.println("starting BLE failed!");
return;
}
BLE.setLocalName("AManager");
BLE.setAdvertisedService(mainService);
mainService.addCharacteristic(rxCharacteristic);
delay(1000);
mainService.addCharacteristic(txCharacteristic);
delay(1000);
BLE.addService(mainService);
delay(1000);
batteryService.addCharacteristic(batteryLevelChar);
delay(1000);
BLE.addService(batteryService);
delay(1000);
BLE.setEventHandler(BLEConnected, connectHandler);
BLE.setEventHandler(BLEDisconnected, disconnectHandler);
rxCharacteristic.setEventHandler(BLEWritten, characteristicWritten);
BLE.advertise();
Serial.println("Advertising started");
};
void Lib::connected(void) {
isConnected = true;
};
void Lib::disconnected(void) {
isConnected = false;
};
void Lib::dataAvailable(String data) {
Serial.println(data);
}
////////////////
void connectHandler(BLEDevice central) {
// central connected event handler
myGlobal->connected();
Serial.print("Connected event, central: ");
Serial.println(central.address());
}
void disconnectHandler(BLEDevice central) {
// central disconnected event handler
myGlobal->disconnected();
Serial.print("Disconnected event, central: ");
Serial.println(central.address());
}
void characteristicWritten(BLEDevice central, BLECharacteristic characteristic) {
Serial.print("Characteristic event, written: ");
char buffer[40];
int n = characteristic.readValue(buffer, sizeof(buffer));
memset(&buffer[n], 0, sizeof(buffer) - n);
String d = String(buffer);
Serial.print("R >");
Serial.print(d);
Serial.print("< ");
Serial.println(n);
myGlobal->dataAvailable(d);
}