如何在量角器中获得中继器内的中继器计数？

// 假设使用Web Bluetooth API与量角器通信
async function getRelayCount() {
    try {
        const device = await navigator.bluetooth.requestDevice({
            filters: [{ services: ['your-service-uuid'] }]
        });
        const server = await device.gatt.connect();
        const service = await server.getPrimaryService('your-service-uuid');
        const characteristic = await service.getCharacteristic('your-characteristic-uuid');

        const value = await characteristic.readValue();
        const relayCount = new DataView(value.buffer).getUint8(0);
        console.log('Relay Count:', relayCount);
    } catch (error) {
        console.error('Error:', error);
    }
}

getRelayCount();

const noble = require('noble');

noble.on('stateChange', function(state) {
    if (state === 'poweredOn') {
        noble.startScanning('your-service-uuid', false);
    } else {
        noble.stopScanning();
    }
});

noble.on('discover', function(peripheral) {
    peripheral.connect(function(error) {
        if (error) {
            console.error('Connection error:', error);
            return;
        }
        peripheral.discoverServices(['your-service-uuid'], function(error, services) {
            if (error) {
                console.error('Service discovery error:', error);
                return;
            }
            const service = services[0];
            service.discoverCharacteristics(['your-characteristic-uuid'], function(error, characteristics) {
                if (error) {
                    console.error('Characteristic discovery error:', error);
                    return;
                }
                const characteristic = characteristics[0];
                characteristic.read(function(error, data) {
                    if (error) {
                        console.error('Read error:', error);
                        return;
                    }
                    const relayCount = data.readUInt8(0);
                    console.log('Relay Count:', relayCount);
                });
            });
        });
    });
});