I am using HM-10 with Arduino to send data from iOS app to Arduino, the problem is I can connect from my app to Bluetooth module but I can't find device characteristics.
The question is there something missed that configure the Bluetooth module to make this service available or what should I do.
let BLEService = "DFB0"
let BLECharacteristic = "DFB1"
var mainCharacteristic:CBCharacteristic? = nil
func peripheral(_ peripheral: CBPeripheral, didDiscoverServices error: Error?) {
for service in peripheral.services! {
print("Service found with UUID: " + service.uuid.uuidString)
//device information service
if (service.uuid.uuidString == "180A") {
peripheral.discoverCharacteristics(nil, for: service)
}
//GAP (Generic Access Profile) for Device Name
// This replaces the deprecated CBUUIDGenericAccessProfileString
if (service.uuid.uuidString == "1800") {
peripheral.discoverCharacteristics(nil, for: service)
}
//Bluno Service
if (service.uuid.uuidString == BLEService) {
peripheral.discoverCharacteristics(nil, for: service)
}
}
}
func peripheral(_ peripheral: CBPeripheral, didDiscoverCharacteristicsFor service: CBService, error: Error?) {
//get device name
if (service.uuid.uuidString == "1800") {
for characteristic in service.characteristics! {
if (characteristic.uuid.uuidString == "2A00") {
peripheral.readValue(for: characteristic)
print("Found Device Name Characteristic")
}
}
}
if (service.uuid.uuidString == "180A") {
for characteristic in service.characteristics! {
if (characteristic.uuid.uuidString == "2A29") {
peripheral.readValue(for: characteristic)
print("Found a Device Manufacturer Name Characteristic")
} else if (characteristic.uuid.uuidString == "2A23") {
peripheral.readValue(for: characteristic)
print("Found System ID")
}
}
}
if (service.uuid.uuidString == BLEService) {
for characteristic in service.characteristics! {
if (characteristic.uuid.uuidString == BLECharacteristic) {
//we'll save the reference, we need it to write data
mainCharacteristic = characteristic
//Set Notify is useful to read incoming data async
peripheral.setNotifyValue(true, for: characteristic)
print("Found Bluno Data Characteristic")
}
}
}
}
Note: I tried it with a general purpose Android app from the app store and it work correctly
