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接触確認アプリが有効になっているかを調べるアプリの M5Stack 版です。取得した ServiceData(RPI)を表示させています。https://twitter.com/ksasao/status/1274385507565178885 参照。Apache 2.0ライセンスです。
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#include <M5Stack.h> | |
#include <BLEDevice.h> | |
// Contact Tracing Bluetooth Specification (Apple/Google) | |
// https://blog.google/documents/58/Contact_Tracing_-_Bluetooth_Specification_v1.1_RYGZbKW.pdf | |
const char* uuid = "0000fd6f-0000-1000-8000-00805f9b34fb"; | |
unsigned int count = 0; | |
class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks { | |
void onResult(BLEAdvertisedDevice advertisedDevice) { | |
if(advertisedDevice.haveServiceUUID()){ | |
if(strncmp(advertisedDevice.getServiceUUID().toString().c_str(),uuid, 36) == 0){ | |
int rssi = advertisedDevice.getRSSI(); | |
Serial.print("RSSI: "); | |
Serial.println(rssi); | |
Serial.print("ADDR: "); | |
Serial.println(advertisedDevice.getAddress().toString().c_str()); | |
M5.Lcd.setCursor(0,80,2); | |
M5.Lcd.println("RSSI: "); | |
M5.Lcd.println(rssi); | |
M5.Lcd.println("ADDR: "); | |
M5.Lcd.println(advertisedDevice.getAddress().toString().c_str()); | |
M5.Lcd.println("Service UUID: "); | |
M5.Lcd.println(advertisedDevice.getServiceUUID().toString().c_str()); | |
M5.Lcd.println("Service Data: "); | |
M5.Lcd.println(toRPI(advertisedDevice.getServiceData().data())); | |
count++; | |
} | |
} | |
} | |
char *toRPI( const char *str ) { | |
static char buf[32+1] ; | |
static char hex[] = "0123456789ABCDEF"; | |
for ( int i=0; i<16; i++ ) { | |
buf[i*2] = hex[(str[i] >> 2) & 0xF]; | |
buf[i*2+1] = hex[str[i] & 0xF]; | |
} | |
buf[32] = 0x00; | |
return buf; | |
} | |
}; | |
void setup() { | |
Serial.begin(115200); | |
M5.begin(); | |
M5.Lcd.setRotation(1); | |
BLEDevice::init(""); | |
} | |
void loop(){ | |
count = 0; | |
BLEScan* pBLEScan = BLEDevice::getScan(); | |
pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks()); | |
pBLEScan->setActiveScan(true); | |
pBLEScan->start(1, false); | |
M5.Lcd.fillScreen(TFT_BLACK); | |
M5.Lcd.setCursor(20,12,6); | |
M5.Lcd.println(count); | |
M5.Lcd.setCursor(40,60,2); | |
M5.Lcd.println("COCOA users here"); | |
delay(2000); | |
M5.update(); | |
} |
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