ArduinoNano33BLE无法接收通过Flutter应用程序发送的数据。
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确保 Arduino Nano 33 BLE 和 Flutter 应用程序之间的连接正常。检查硬件连接和蓝牙设置。
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使用 Serial 监视器在串口上打印接收到的数据以进行排错。以下是一个示例：
void setup() { Serial.begin(9600); }
void loop() { if (Serial.available()) { char c = Serial.read(); Serial.print(c); } }
- 在 Flutter 应用程序中，确保使用正确的 UUID 和服务以发送数据。以下是一个示例：
final String SERVICE_UUID = "6E400001-B5A3-F393-E0A9-E50E24DCCA9E"; final String CHARACTERISTIC_UUID = "6E400002-B5A3-F393-E0A9-E50E24DCCA9E";
void sendData(List
services.forEach((service) { if (service.uuid.toString() == SERVICE_UUID) { service.characteristics.forEach((c) { if (c.uuid.toString() == CHARACTERISTIC_UUID) { characteristic = c; } }); } });
if (characteristic != null) { await characteristic.write(data); } }
- 在 Arduino Nano 33 BLE 中，使用 BLE 库以接收数据。以下是一个示例：
#include
void setup() { BLE.begin(); BLE.setLocalName("Nano33BLE"); BLE.setAdvertisedService(uuid); BLE.addService(service); characteristic = service.createCharacteristic( uuidCharacteristic, BLECharacteristic::PROPERTY_READ | BLECharacteristic::PROPERTY_WRITE );
BLE.advertise(); }
void loop() { BLEDevice central = BLE.central(); if (central) { while (central.connected()) { if (characteristic.written()) { String msg = characteristic.value(); Serial.println(msg); } } } }
通过上述步骤，您应该能够解决 Arduino Nano 33 BLE 无法接