0

我一直在尝试将FitBit Inspire HR和RENPHO ES-26R 体重秤与我的 Raspberry Pi（3B+、4B 和零）配对，结果都相同。运行bluetoothctl (v5.50)，可以看到设备（ED:67是规模，01:C5是 Fitbit）：

...
[CHG] Device ED:67:37:60:78:22 ManufacturerData Key: 0xffff
[CHG] Device ED:67:37:60:78:22 ManufacturerData Value:
  aa bb ed 67 37 60 78 22 00 01 23 14 ff ff ff 14  ...g7`x"..#.....
  00 6a 04 4d a2 02 1d 0c                          .j.M....
[CHG] Device 01:C5:59:47:49:F9 RSSI: -47
[CHG] Device 01:C5:59:47:49:F9 TxPower: 3
...

规模

当我尝试配对或连接秤时，bluetoothctl、hcidump 和 gatttool 的输出如下：

蓝牙控制

Attempting to pair with ED:67:37:60:78:22
Failed to pair: org.bluez.Error.AuthenticationCanceled

hcidump

> HCI Event: Command Complete (0x0e) plen 4
    LE Remove Device From White List (0x08|0x0012) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Add Device To White List (0x08|0x0011) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Parameters (0x08|0x000b) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Enable (0x08|0x000c) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Enable (0x08|0x000c) ncmd 1
    status 0x00

加特工具

> sudo gatttool -b ED:67:37:60:78:22 -I
[ED:67:37:60:78:22][LE]> connect
Attempting to connect to ED:67:37:60:78:22
Error: connect error: Connection refused (111)

根据我看到的几个线程，我尝试使用公共和随机的地址类型，没有任何变化。hcidump 似乎对 Scale 没有太多影响。

编辑

进一步检查秤，它似乎不是“可连接的”。鉴于没有明确的服务或特征，我开始查看广告中的“制造数据” 。我可以看到，随着尺度上的测量值发生变化，部分数据也在发生变化： 

ff ff aa bb ed 67 37 60 78 22 5e 94 d7 4d 7f 7e 3a 14 00 00 00 4d a2 02 8a 25
ff ff aa bb ed 67 37 60 78 22 5e 94 d7 4d 7f 7e 3a 14 00 d2 00 4d a2 02 8b 25
ff ff aa bb ed 67 37 60 78 22 5e 94 d7 4d 7f 7e 3a 14 00 d2 00 4d a2 02 8b 25
ff ff aa bb ed 67 37 60 78 22 5e 94 d7 4d 7f 7e 3a 14 00 60 04 4d a2 02 8b 25
ff ff aa bb ed 67 37 60 78 22 5e 94 d7 4d 7f 7e 3a 14 00 68 06 4d a2 02 8b 25
ff ff aa bb ed 67 37 60 78 22 5e 94 d7 4d 7f 7e 3a 14 00 68 06 4d a2 02 8b 25
ff ff aa bb ed 67 37 60 78 22 5e 94 d7 4d 7f 7e 3a 14 00 ad 07 4d a2 02 8c 25
ff ff aa bb ed 67 37 60 78 22 5e 94 d7 4d 7f 7e 3a 14 00 ad 07 4d a2 02 8c 25
ff ff aa bb ed 67 37 60 78 22 5e 94 d7 4e 7f 7e 3a 14 00 6b 08 4d a2 02 8c 25

现在我只需要确认更新的部分实际上是重量数据——一旦我弄清楚汤里有什么（例如，计量单位、重量等）。

FITBIT

对于 Fitbit，有更多的输出，但配对仍然失败：

蓝牙控制

pair 01:C5:59:47:49:F9
Attempting to pair with 01:C5:59:47:49:F9
[CHG] Device 01:C5:59:47:49:F9 Connected: yes
[CHG] Device 01:C5:59:47:49:F9 ServicesResolved: yes
[CHG] Device 01:C5:59:47:49:F9 ServicesResolved: no
[CHG] Device 01:C5:59:47:49:F9 Connected: no
Failed to pair: org.bluez.Error.AuthenticationCanceled

hcidump

> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Parameters (0x08|0x000b) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Enable (0x08|0x000c) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Enable (0x08|0x000c) ncmd 1
    status 0x00
> HCI Event: Command Status (0x0f) plen 4
    LE Create Connection (0x08|0x000d) status 0x00 ncmd 1
> HCI Event: Command Status (0x0f) plen 4
    LE Read Remote Used Features (0x08|0x0016) status 0x00 ncmd 1
> HCI Event: Command Complete (0x0e) plen 14
    LE Read Remote Used Features (0x08|0x0016) ncmd 1
> HCI Event: Command Status (0x0f) plen 4
    Disconnect (0x01|0x0006) status 0x00 ncmd 1
> HCI Event: Disconn Complete (0x05) plen 4
    status 0x00 handle 64 reason 0x16
    Reason: Connection Terminated by Local Host

加特工具

与 Scale 不同，我可以使用 gatttool 连接到 Fitbit 并检索特征：

[01:C5:59:47:49:F9][LE]> connect
Attempting to connect to 01:C5:59:47:49:F9
Connection successful
[01:C5:59:47:49:F9][LE]> characteristics
handle: 0x0002, char properties: 0x02, char value handle: 0x0003, uuid: 00002a00-0000-1000-8000-00805f9b34fb
handle: 0x0004, char properties: 0x02, char value handle: 0x0005, uuid: 00002a01-0000-1000-8000-00805f9b34fb
handle: 0x0006, char properties: 0x02, char value handle: 0x0007, uuid: 00002a04-0000-1000-8000-00805f9b34fb
handle: 0x0008, char properties: 0x02, char value handle: 0x0009, uuid: 00002aa6-0000-1000-8000-00805f9b34fb
handle: 0x000b, char properties: 0x20, char value handle: 0x000c, uuid: 00002a05-0000-1000-8000-00805f9b34fb
handle: 0x000f, char properties: 0x02, char value handle: 0x0010, uuid: adabfb04-6e7d-4601-bda2-bffaa68956ba
handle: 0x0011, char properties: 0x06, char value handle: 0x0012, uuid: adabfb02-6e7d-4601-bda2-bffaa68956ba
handle: 0x0013, char properties: 0x12, char value handle: 0x0014, uuid: adabfb03-6e7d-4601-bda2-bffaa68956ba
handle: 0x0016, char properties: 0x10, char value handle: 0x0017, uuid: adabfb01-6e7d-4601-bda2-bffaa68956ba
handle: 0x0019, char properties: 0x20, char value handle: 0x001a, uuid: adabfb05-6e7d-4601-bda2-bffaa68956ba
handle: 0x001d, char properties: 0x12, char value handle: 0x001e, uuid: 558dfa01-4fa8-4105-9f02-4eaa93e62980
handle: 0x0021, char properties: 0x02, char value handle: 0x0022, uuid: 00002a29-0000-1000-8000-00805f9b34fb
handle: 0x0023, char properties: 0x02, char value handle: 0x0024, uuid: 00002a24-0000-1000-8000-00805f9b34fb
handle: 0x0025, char properties: 0x02, char value handle: 0x0026, uuid: 00002a25-0000-1000-8000-00805f9b34fb
handle: 0x0027, char properties: 0x02, char value handle: 0x0028, uuid: 00002a27-0000-1000-8000-00805f9b34fb
handle: 0x0029, char properties: 0x02, char value handle: 0x002a, uuid: 00002a26-0000-1000-8000-00805f9b34fb
handle: 0x002b, char properties: 0x02, char value handle: 0x002c, uuid: 00002a28-0000-1000-8000-00805f9b34fb
handle: 0x002d, char properties: 0x02, char value handle: 0x002e, uuid: 00002a23-0000-1000-8000-00805f9b34fb
handle: 0x002f, char properties: 0x02, char value handle: 0x0030, uuid: 00002a2a-0000-1000-8000-00805f9b34fb
handle: 0x0031, char properties: 0x02, char value handle: 0x0032, uuid: 00002a50-0000-1000-8000-00805f9b34fb

附加信息

蓝牙服务状态

● bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2020-04-09 18:32:27 BST; 24min ago
     Docs: man:bluetoothd(8)
 Main PID: 5515 (bluetoothd)
   Status: "Running"
    Tasks: 1 (limit: 4915)
   Memory: 1.1M
   CGroup: /system.slice/bluetooth.service
           └─5515 /usr/lib/bluetooth/bluetoothd --compat --noplugin=sap -E

Apr 09 18:32:27 archer systemd[1]: Starting Bluetooth service...
Apr 09 18:32:27 archer bluetoothd[5515]: Bluetooth daemon 5.50
Apr 09 18:32:27 archer systemd[1]: Started Bluetooth service.
Apr 09 18:32:27 archer bluetoothd[5515]: Excluding (cli) sap
Apr 09 18:32:27 archer bluetoothd[5515]: Bluetooth management interface 1.14 initialized

dmesg | grep 蓝牙

[   12.451287] Bluetooth: Core ver 2.22
[   12.451337] Bluetooth: HCI device and connection manager initialized
[   12.452111] Bluetooth: HCI socket layer initialized
[   12.452123] Bluetooth: L2CAP socket layer initialized
[   12.452151] Bluetooth: SCO socket layer initialized
[   12.462111] Bluetooth: HCI UART driver ver 2.3
[   12.462118] Bluetooth: HCI UART protocol H4 registered
[   12.462172] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   12.462284] Bluetooth: HCI UART protocol Broadcom registered
[   12.677032] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   12.677038] Bluetooth: BNEP filters: protocol multicast
[   12.677048] Bluetooth: BNEP socket layer initialized
[  818.140511] Bluetooth: RFCOMM TTY layer initialized
[  818.140529] Bluetooth: RFCOMM socket layer initialized
[  818.140542] Bluetooth: RFCOMM ver 1.11

联系

WiFi 和蓝牙在所有 PI 上都处于活动状态，我通过 SSH 连接。

结束

我一直在浏览来自多个论坛的许多线程，并进行了各种推荐的配置更改（保持 PI 3B+ 干净作为控件），但没有成功。我非常感谢任何关于下一步去哪里的建议或指示。一定是我在某处遗漏了一些东西——很可能是一些简单的东西让你们中的大多数人像以前从未笑过一样大笑:)

感谢您花时间阅读这个冗长的问题。

4

2 回答 2

1

太好了，谢谢你的详细分析。

我这里有一个RENPHO ES-26R-B. 字节 24-25 似乎是一个计数器/索引，它会增加直到测量完成，然后多次发送先前的测量（较小的 idx）。

我使用 python 和 bluepy 来读取和分析消息：

import os
import time
from datetime import datetime
from bluepy.btle import Scanner, DefaultDelegate


g_idx_old = 0


class ScanDelegate(DefaultDelegate):
    def __init__(self):
        DefaultDelegate.__init__(self)

    def handleDiscovery(self, dev, isNewDev, isNewData):
        filter_for_renpho_messages(dev)


def filter_for_renpho_messages(dev):
    for (adtype, desc, value) in dev.getScanData():
        if(desc == 'Manufacturer'):  # idx 255
            if(len(dev.scanData[255]) == 26):
                dev_addr_manufacturer = dev.scanData[255][4:10].hex()
                if(dev.addr.replace(':', '') == dev_addr_manufacturer):
                    # show_all_messages(dev)
                    show_only_stable_weight(dev)


def show_all_messages(dev, write_to_file=False):
    manufacturer_data = dev.scanData[255]
    weight_raw = int.from_bytes(manufacturer_data[19:21], "little")
    weight_kg = float(weight_raw)/100.0
    index_raw = int.from_bytes(manufacturer_data[24:26], "little")
    # print the data
    print("{} {} {} {:6.2f}kg {:5}".format(
        datetime.now().strftime("%H:%M:%S"), dev.addr,
        dev.scanData[255].hex(), weight_kg, index_raw))
    # write the data to file (binary)
    if(write_to_file):
        with open("manufacturer_data.bin", "ab") as data_file:
            data_file.write(manufacturer_data)


def show_only_stable_weight(dev, write_to_file=True):
    global g_idx_old

    manufacturer_data = dev.scanData[255]
    weight_raw = int.from_bytes(manufacturer_data[19:21], "little")
    weight_kg = float(weight_raw)/100.0
    idx = int.from_bytes(manufacturer_data[24:26], "little")

    # only show weight if the incoming idx is smaller than a prev
    if((idx < g_idx_old) and          # stable result has smaller idx
       ((g_idx_old - idx) < 50000)):  # ignore overflow
        # print the data
        print("{} {:6.2f}kg".format(
            datetime.now().strftime("%H:%M:%S"), weight_kg))
        # write the data to file (CSV)
        if(write_to_file):
            filename = "weights.csv"
            # If file is new, set the header row
            if not os.path.isfile(filename):
                with open("weights.csv", "a") as csv_file:
                    csv_file.write("timestamp;datetime;weight;kg\n")
            # append current measurement
            with open("weights.csv", "a") as data_file:
                data_file.write("{};{};{};kg\n".format(
                    int(time.time()), datetime.now().strftime("%d.%m.%Y %H:%M:%S"), weight_kg))
    g_idx_old = idx


def main():
    scanner = Scanner().withDelegate(ScanDelegate())
    scanner.scan(timeout=None, passive=True)


if __name__ == "__main__":
    main()

在函数show_all_messages中，可以将数据写入二进制文件，然后可以使用以下代码进行分析：

from datetime import datetime


with open("manufacturer_data.bin", "rb") as dump_file:
    data = dump_file.read()
    data_len = len(data)
    print("Datalen: {}\n".format(data_len))
    for i in range(int(data_len / 26)):
        cur_data = data[i*26:(i+1)*26]

        # strange, timstamp is big endian, but weight and idx are little endian
        timestamp_raw = int.from_bytes(cur_data[10:14], "big")
        weight_raw = int.from_bytes(cur_data[19:21], "little")
        index_raw = int.from_bytes(cur_data[24:26], "little")
        weight_kg = float(weight_raw)/100.0

        print("{} | {} {} {} {} {} {} {} {} {} | {} {:5} {:5} | {:6.2f}kg".format(
            cur_data.hex(),
            cur_data[0:4].hex(),    # always "ffffaabb"
            cur_data[4:10].hex(),   # device address "ed67388f9d27"
            cur_data[10:14].hex(),  # timestamp
            cur_data[14:17].hex(),  # Unknown "ffffff"
            cur_data[17:18].hex(),  # Stabilization? "12" or "13"
            cur_data[18:19].hex(),  # Unknown "a0"
            cur_data[19:21].hex(),  # weight
            cur_data[21:24].hex(),  # Unknown "4f2e03"
            cur_data[24:26].hex(),  # idx / cnt
            datetime.fromtimestamp(timestamp_raw).strftime('%Y-%m-%d %H:%M:%S'),
            weight_raw,
            index_raw,
            weight_kg))

以下是分析数据的示例：

                                                                                                  weight        idx                       weight  idx
                                                                                                   ||||        ||||                        ||||  ||||
ffffaabbed67388f9d27600b5c9cffffff12a0ae1f4f2e039e1d | ffffaabb ed67388f9d27 600b5c9c ffffff 12 a0 ae1f 4f2e03 9e1d | 2021-01-23 00:15:40  8110  7582 |  81.10kg
ffffaabbed67388f9d27600b5c9cffffff12a0ae1f4f2e039e1d | ffffaabb ed67388f9d27 600b5c9c ffffff 12 a0 ae1f 4f2e03 9e1d | 2021-01-23 00:15:40  8110  7582 |  81.10kg
ffffaabbed67388f9d27600b5c9cffffff12a002214f2e039e1d | ffffaabb ed67388f9d27 600b5c9c ffffff 12 a0 0221 4f2e03 9e1d | 2021-01-23 00:15:40  8450  7582 |  84.50kg
ffffaabbed67388f9d27600b5c9cffffff12a002214f2e039e1d | ffffaabb ed67388f9d27 600b5c9c ffffff 12 a0 0221 4f2e03 9e1d | 2021-01-23 00:15:40  8450  7582 |  84.50kg
ffffaabbed67388f9d27600b5c9dffffff12a0e51f4f2e039f1d | ffffaabb ed67388f9d27 600b5c9d ffffff 12 a0 e51f 4f2e03 9f1d | 2021-01-23 00:15:41  8165  7583 |  81.65kg
ffffaabbed67388f9d27600b5c9dffffff12a00d204f2e03a01d | ffffaabb ed67388f9d27 600b5c9d ffffff 12 a0 0d20 4f2e03 a01d | 2021-01-23 00:15:41  8205  7584 |  82.05kg
ffffaabbed67388f9d27600b5c9dffffff12a00d204f2e03a01d | ffffaabb ed67388f9d27 600b5c9d ffffff 12 a0 0d20 4f2e03 a01d | 2021-01-23 00:15:41  8205  7584 |  82.05kg
ffffaabbed67388f9d27600b5c9fffffff12a008204f2e03a31d | ffffaabb ed67388f9d27 600b5c9f ffffff 12 a0 0820 4f2e03 a31d | 2021-01-23 00:15:43  8200  7587 |  82.00kg
ffffaabbed67388f9d27600b5c9fffffff12a008204f2e03a41d | ffffaabb ed67388f9d27 600b5c9f ffffff 12 a0 0820 4f2e03 a41d | 2021-01-23 00:15:43  8200  7588 |  82.00kg
ffffaabbed67388f9d27600b5ca0ffffff12a008204f2e03a51d | ffffaabb ed67388f9d27 600b5ca0 ffffff 12 a0 0820 4f2e03 a51d | 2021-01-23 00:15:44  8200  7589 |  82.00kg
ffffaabbed67388f9d27600b5ca0ffffff12a008204f2e03a61d | ffffaabb ed67388f9d27 600b5ca0 ffffff 12 a0 0820 4f2e03 a61d | 2021-01-23 00:15:44  8200  7590 |  82.00kg
ffffaabbed67388f9d27600b5ca0ffffff12a008204f2e03a61d | ffffaabb ed67388f9d27 600b5ca0 ffffff 12 a0 0820 4f2e03 a61d | 2021-01-23 00:15:44  8200  7590 |  82.00kg
ffffaabbed67388f9d27600b5ca1ffffff12a008204f2e03a71d | ffffaabb ed67388f9d27 600b5ca1 ffffff 12 a0 0820 4f2e03 a71d | 2021-01-23 00:15:45  8200  7591 |  82.00kg
ffffaabbed67388f9d27600b5ca2ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca2 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:46  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca2ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca2 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:46  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca2ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca2 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:46  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca3ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca3 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:47  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca4ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca4 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:48  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca4ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca4 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:48  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca4ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca4 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:48  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca4ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca4 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:48  8200  7586 |  82.00kg
ffffaabbed67388f9d27600b5ca5ffffff13a008204f2e03a21d | ffffaabb ed67388f9d27 600b5ca5 ffffff 13 a0 0820 4f2e03 a21d | 2021-01-23 00:15:49  8200  7586 |  82.00kg
...

ffffaabbed67388f9d27600b5cb1ffffff13a000004f2e03be1d | ffffaabb ed67388f9d27 600b5cb1 ffffff 13 a0 0000 4f2e03 be1d | 2021-01-23 00:16:01     0  7614 |   0.00kg
ffffaabbed67388f9d27600b5cb1ffffff12a05d204f2e03be1d | ffffaabb ed67388f9d27 600b5cb1 ffffff 12 a0 5d20 4f2e03 be1d | 2021-01-23 00:16:01  8285  7614 |  82.85kg
ffffaabbed67388f9d27600b5cb1ffffff12a035204f2e03be1d | ffffaabb ed67388f9d27 600b5cb1 ffffff 12 a0 3520 4f2e03 be1d | 2021-01-23 00:16:01  8245  7614 |  82.45kg
ffffaabbed67388f9d27600b5cb1ffffff12a035204f2e03be1d | ffffaabb ed67388f9d27 600b5cb1 ffffff 12 a0 3520 4f2e03 be1d | 2021-01-23 00:16:01  8245  7614 |  82.45kg
ffffaabbed67388f9d27600b5cb1ffffff12a008204f2e03be1d | ffffaabb ed67388f9d27 600b5cb1 ffffff 12 a0 0820 4f2e03 be1d | 2021-01-23 00:16:01  8200  7614 |  82.00kg
ffffaabbed67388f9d27600b5cb2ffffff12a008204f2e03bf1d | ffffaabb ed67388f9d27 600b5cb2 ffffff 12 a0 0820 4f2e03 bf1d | 2021-01-23 00:16:02  8200  7615 |  82.00kg
ffffaabbed67388f9d27600b5cb2ffffff12a008204f2e03c01d | ffffaabb ed67388f9d27 600b5cb2 ffffff 12 a0 0820 4f2e03 c01d | 2021-01-23 00:16:02  8200  7616 |  82.00kg
ffffaabbed67388f9d27600b5cb3ffffff12a0451f4f2e03c11d | ffffaabb ed67388f9d27 600b5cb3 ffffff 12 a0 451f 4f2e03 c11d | 2021-01-23 00:16:03  8005  7617 |  80.05kg
ffffaabbed67388f9d27600b5cb3ffffff12a0ca1c4f2e03c11d | ffffaabb ed67388f9d27 600b5cb3 ffffff 12 a0 ca1c 4f2e03 c11d | 2021-01-23 00:16:03  7370  7617 |  73.70kg
ffffaabbed67388f9d27600b5cb3ffffff12a0600e4f2e03c11d | ffffaabb ed67388f9d27 600b5cb3 ffffff 12 a0 600e 4f2e03 c11d | 2021-01-23 00:16:03  3680  7617 |  36.80kg
ffffaabbed67388f9d27600b5cb3ffffff12a0600e4f2e03c11d | ffffaabb ed67388f9d27 600b5cb3 ffffff 12 a0 600e 4f2e03 c11d | 2021-01-23 00:16:03  3680  7617 |  36.80kg
ffffaabbed67388f9d27600b5cb3ffffff12a0600e4f2e03c11d | ffffaabb ed67388f9d27 600b5cb3 ffffff 12 a0 600e 4f2e03 c11d | 2021-01-23 00:16:03  3680  7617 |  36.80kg
ffffaabbed67388f9d27600b5cb3ffffff12a000004f2e03c11d | ffffaabb ed67388f9d27 600b5cb3 ffffff 12 a0 0000 4f2e03 c11d | 2021-01-23 00:16:03     0  7617 |   0.00kg
ffffaabbed67388f9d27600b5cb3ffffff12a000004f2e03c11d | ffffaabb ed67388f9d27 600b5cb3 ffffff 12 a0 0000 4f2e03 c11d | 2021-01-23 00:16:03     0  7617 |   0.00kg
ffffaabbed67388f9d27600b5cb3ffffff12a000004f2e03c21d | ffffaabb ed67388f9d27 600b5cb3 ffffff 12 a0 0000 4f2e03 c21d | 2021-01-23 00:16:03     0  7618 |   0.00kg
ffffaabbed67388f9d27600b5cb3ffffff12a000004f2e03c21d | ffffaabb ed67388f9d27 600b5cb3 ffffff 12 a0 0000 4f2e03 c21d | 2021-01-23 00:16:03     0  7618 |   0.00kg
ffffaabbed67388f9d27600b5cb4ffffff12a000004f2e03c31d | ffffaabb ed67388f9d27 600b5cb4 ffffff 12 a0 0000 4f2e03 c31d | 2021-01-23 00:16:04     0  7619 |   0.00kg
ffffaabbed67388f9d27600b5cb4ffffff12a000004f2e03c31d | ffffaabb ed67388f9d27 600b5cb4 ffffff 12 a0 0000 4f2e03 c31d | 2021-01-23 00:16:04     0  7619 |   0.00kg
ffffaabbed67388f9d27600b5cb5ffffff12a06c204f2e03c51d | ffffaabb ed67388f9d27 600b5cb5 ffffff 12 a0 6c20 4f2e03 c51d | 2021-01-23 00:16:05  8300  7621 |  83.00kg
ffffaabbed67388f9d27600b5cb5ffffff12a0b41e4f2e03c51d | ffffaabb ed67388f9d27 600b5cb5 ffffff 12 a0 b41e 4f2e03 c51d | 2021-01-23 00:16:05  7860  7621 |  78.60kg
ffffaabbed67388f9d27600b5cb5ffffff12a0b41e4f2e03c51d | ffffaabb ed67388f9d27 600b5cb5 ffffff 12 a0 b41e 4f2e03 c51d | 2021-01-23 00:16:05  7860  7621 |  78.60kg
ffffaabbed67388f9d27600b5cb5ffffff12a0ae1f4f2e03c51d | ffffaabb ed67388f9d27 600b5cb5 ffffff 12 a0 ae1f 4f2e03 c51d | 2021-01-23 00:16:05  8110  7621 |  81.10kg
ffffaabbed67388f9d27600b5cb5ffffff12a0df204f2e03c61d | ffffaabb ed67388f9d27 600b5cb5 ffffff 12 a0 df20 4f2e03 c61d | 2021-01-23 00:16:05  8415  7622 |  84.15kg
ffffaabbed67388f9d27600b5cb5ffffff12a0bd1f4f2e03c61d | ffffaabb ed67388f9d27 600b5cb5 ffffff 12 a0 bd1f 4f2e03 c61d | 2021-01-23 00:16:05  8125  7622 |  81.25kg
ffffaabbed67388f9d27600b5cb5ffffff12a0bd1f4f2e03c61d | ffffaabb ed67388f9d27 600b5cb5 ffffff 12 a0 bd1f 4f2e03 c61d | 2021-01-23 00:16:05  8125  7622 |  81.25kg
ffffaabbed67388f9d27600b5cb6ffffff12a0e01f4f2e03c71d | ffffaabb ed67388f9d27 600b5cb6 ffffff 12 a0 e01f 4f2e03 c71d | 2021-01-23 00:16:06  8160  7623 |  81.60kg
ffffaabbed67388f9d27600b5cb6ffffff12a0e01f4f2e03c71d | ffffaabb ed67388f9d27 600b5cb6 ffffff 12 a0 e01f 4f2e03 c71d | 2021-01-23 00:16:06  8160  7623 |  81.60kg
ffffaabbed67388f9d27600b5cb6ffffff12a008204f2e03c71d | ffffaabb ed67388f9d27 600b5cb6 ffffff 12 a0 0820 4f2e03 c71d | 2021-01-23 00:16:06  8200  7623 |  82.00kg
ffffaabbed67388f9d27600b5cb6ffffff12a008204f2e03c71d | ffffaabb ed67388f9d27 600b5cb6 ffffff 12 a0 0820 4f2e03 c71d | 2021-01-23 00:16:06  8200  7623 |  82.00kg
ffffaabbed67388f9d27600b5cb6ffffff12a008204f2e03c71d | ffffaabb ed67388f9d27 600b5cb6 ffffff 12 a0 0820 4f2e03 c71d | 2021-01-23 00:16:06  8200  7623 |  82.00kg
...
于 2021-01-22T22:37:21.857 回答
0

对于Scale，我终于能够解码重要的值（重量）。有一些我仍然不知道它们是什么，但主要问题已解决。给定以下位置和值：

Position:    00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Value:       ff ff aa bb ed 67 37 60 78 22 5e 97 4a 74 7f 7e 3a 15 00 6a 04 4d a2 02 4a 3d

映射如下：

  • 0-3：目前未知。未观察到值发生变化
  • 4-9 : 设备地址
  • 10-13 : Unix 时间戳
  • 14-16：目前未知。已经观察到值会发生变化，但不是很频繁。
  • 17：稳定指标。值 0x15 (21) 表示刻度已稳定测量
  • 18：暂时未知。总是显示为 00
  • 19-20：重量！. 虽然秤以磅为单位显示重量，但传输的值需要除以 100 才能得出公斤，然后可以根据需要转换为其他单位。
  • 21-23：目前未知。未观察到值发生变化
  • 24：暂时未知。测量过程中数值的变化，可能与计算BMI等有关。
  • 25：暂时未知。该值有时会在一天中的不同时间点发生变化。似乎与测量本身没有直接关系。

我错误地试图使用 FitBit 来保持理智。但是，很明显，这两种设备履行和提供的角色和服务——以及它们的广告方式——根本不相似，所以这是一个糟糕的解决方案集:)。

我希望这可以帮助其他任何人尝试从在广告中提供数据的秤（特别是 Renpho ES-26R）中检索数据。如果其他人遇到未知位的含义，请随时对信息发表评论。

谢谢！

于 2020-04-15T19:02:02.960 回答