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Download from H5100 and H5105
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William C Bonner committed Feb 4, 2024
1 parent e413ff7 commit 5a4e21d
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2 changes: 1 addition & 1 deletion CMakeLists.txt
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Expand Up @@ -21,7 +21,7 @@ if (POLICY CMP0115)
endif()

project (GoveeBTTempLogger
VERSION 2.20240203.0
VERSION 2.20240203.1
DESCRIPTION "Listen and log Govee Thermometer Bluetooth Low Energy Advertisments"
HOMEPAGE_URL https://github.com/wcbonner/GoveeBTTempLogger
)
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62 changes: 54 additions & 8 deletions README.md
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Expand Up @@ -166,6 +166,9 @@ It has taken me a long time to get around to downloading data from the devices d
#### 2024-01-14 H5105 support
It appears that the H5105 broadcast data is automatically recognized as a Govee thermometer and data stored, but downloading is not working. The H5105 has a pairing button on the top of the device. I've noticed that the H5100 device does not seem to be downloading historical data either. They may use the same protocol, different from the older thermometers.

##### 2024-02-03 H5100 and H5105 Device Support
I've made a couple of hacks to get the two devices I have at my location to work. The H5100 device I have has a bluetooth address that starts with a C, the H5105 device starts with a D. The realy big issue is that to communicate with them, the protocol must declare that it's talking with LE_RANDOM_ADDRESS as opposed to LE_PUBLIC_ADDRESS that the other devices I've used require. This also comes into play if a bluetooth filter is configured to only listen to certain devices. I don't understand this setup as according to what I've read, if the most significant bits of the 48 bit bluetooth address are set to one, that defines the address as RANDOM, which would mean that a C, D, E, or F in the leading digit of the address should all require RANDOM.

I have run into problems recognizing advertisments. This has led to too much time experimenting with the method of scanning for bluetooth advertisments, primarily with the settings of ScanWindow and ScanInterval, but also with the difference between active scanning and passive scanning.
### Passive Scanning
In this mode that program is doing excactly what you'd expect, listening for advertisments.
Expand Down Expand Up @@ -201,15 +204,58 @@ Connections on bluetooth devices are all based on handles and UUIDs. There are s
**12205f53-4b43-4f52-5f49-4c4c45544e49** is the 128 bit UUID of the service characteristic that I write to enable download of data. It looks like the primary UUID except that the first two bytes are different. **INTELLI_ROCKS_**. (**_SKCOR_ILLETNI**)

Most of the devices hold 20 days of history. The GVH5177 and GVH5174 devices hald a month of data.

```
Feb 23 13:52:39 WimPi4 goveebttemplogger[28158]: Download from device: [A4:C1:38:DC:CC:3D] 2023-02-03 13:52:00 2023-02-23 13:52:00 (28800)
Feb 23 13:53:07 WimPi4 goveebttemplogger[28158]: Download from device: [A4:C1:38:EC:0B:03] 2023-02-03 13:51:00 2023-02-23 13:52:00 (28801)
Feb 23 13:53:40 WimPi4 goveebttemplogger[28158]: Download from device: [E3:5E:CC:21:5C:0F] 2023-02-03 13:53:00 2023-02-23 13:53:00 (28800)
Feb 23 13:54:25 WimPi4 goveebttemplogger[28158]: Download from device: [A4:C1:38:0D:3B:10] 2023-01-24 13:50:00 2023-02-23 13:53:00 (43203)
Feb 23 13:55:28 WimPi4 goveebttemplogger[28158]: Download from device: [A4:C1:38:D5:A3:3B] 2023-02-03 13:54:00 2023-02-23 13:54:00 (28800)
Feb 23 13:56:14 WimPi4 goveebttemplogger[28158]: Download from device: [A4:C1:38:65:A2:6A] 2023-02-03 13:52:00 2023-02-23 13:55:00 (28803)
Feb 23 13:57:05 WimPi4 goveebttemplogger[28158]: Download from device: [A4:C1:38:05:C7:A1] 2023-02-03 13:53:00 2023-02-23 13:56:00 (28803)
Feb 23 13:58:00 WimPi4 goveebttemplogger[28158]: Download from device: [A4:C1:38:13:AE:36] 2023-02-03 13:54:00 2023-02-23 13:57:00 (28803)
Download from device: [A4:C1:38:DC:CC:3D] 2023-02-03 13:52:00 2023-02-23 13:52:00 (28800)
Download from device: [A4:C1:38:EC:0B:03] 2023-02-03 13:51:00 2023-02-23 13:52:00 (28801)
Download from device: [E3:5E:CC:21:5C:0F] 2023-02-03 13:53:00 2023-02-23 13:53:00 (28800)
Download from device: [A4:C1:38:0D:3B:10] 2023-01-24 13:50:00 2023-02-23 13:53:00 (43203)
Download from device: [A4:C1:38:D5:A3:3B] 2023-02-03 13:54:00 2023-02-23 13:54:00 (28800)
Download from device: [A4:C1:38:65:A2:6A] 2023-02-03 13:52:00 2023-02-23 13:55:00 (28803)
Download from device: [A4:C1:38:05:C7:A1] 2023-02-03 13:53:00 2023-02-23 13:56:00 (28803)
Download from device: [A4:C1:38:13:AE:36] 2023-02-03 13:54:00 2023-02-23 13:57:00 (28803)
Download from device: [C2:35:33:30:25:50] 2024-01-15 22:19:00 2024-02-03 20:01:00 (27222)
Download from device: [D0:35:33:33:44:03] 2024-01-14 20:00:00 2024-02-03 20:00:00 (28800)
```

```
[2024-02-04T04:01:41] 46 [C2:35:33:30:25:50] (Flags) 06 (Name) GVH5100_2550 (UUID) 88EC (Manu) 010001010276EF55 (Temp) 16.1519°C (Humidity) 51.9% (Battery) 85% (GVH5100)
[-------------------] Service Handles: 0x0001..0x0009 UUID: 1800 (Generic Access)
[ ] Characteristic Handles: 0x0002..0x0003 Properties: 0x0a UUID: 2a00 (Device Name)
[ ] Characteristic Handles: 0x0004..0x0005 Properties: 0x0a UUID: 2a01 (Appearance)
[ ] Characteristic Handles: 0x0006..0x0007 Properties: 0x02 UUID: 2a04 (Peripheral Preferred Connection Parameters)
[ ] Characteristic Handles: 0x0008..0x0009 Properties: 0x02 UUID: 2ac9
[-------------------] Service Handles: 0x000a..0x000d UUID: 1801 (Generic Attribute)
[ ] Characteristic Handles: 0x000b..0x000c Properties: 0x22 UUID: 2a05 (Service Changed)
[-------------------] Service Handles: 0x000e..0x001a UUID: 57485f53-4b43-4f52-5f49-4c4c45544e49
[ ] Characteristic Handles: 0x000f..0x0010 Properties: 0x1a UUID: 11205f53-4b43-4f52-5f49-4c4c45544e49
[ ] Characteristic Handles: 0x0013..0x0014 Properties: 0x1a UUID: 12205f53-4b43-4f52-5f49-4c4c45544e49
[ ] Characteristic Handles: 0x0017..0x0018 Properties: 0x12 UUID: 13205f53-4b43-4f52-5f49-4c4c45544e49
[-------------------] Service Handles: 0x001b..0x0025 UUID: 00fe0000-0000-0000-0000-00000000f002
[ ] Characteristic Handles: 0x001c..0x001d Properties: 0x02 UUID: 03ff0000-0000-0000-0000-00000000f002
[ ] Characteristic Handles: 0x001e..0x001f Properties: 0x12 UUID: 02ff0000-0000-0000-0000-00000000f002
[ ] Characteristic Handles: 0x0022..0x0023 Properties: 0x02 UUID: 00ff0000-0000-0000-0000-00000000f002
[ ] Characteristic Handles: 0x0024..0x0025 Properties: 0x0c UUID: 01ff0000-0000-0000-0000-00000000f002
[2024-02-04T04:03:05] [C2:35:33:30:25:50] Download from device. 2024-01-15 22:19:00 2024-02-03 20:01:00 (27222)
[2024-02-04T04:00:25] 46 [D0:35:33:33:44:03] (Flags) 06 (Name) GVH5105_4403 (UUID) 88EC (Manu) 0100010102868262 (Temp) 16.5506°C (Humidity) 50.6% (Battery) 98% (GVH5105)
[-------------------] Service Handles: 0x0001..0x0009 UUID: 1800 (Generic Access)
[ ] Characteristic Handles: 0x0002..0x0003 Properties: 0x0a UUID: 2a00 (Device Name)
[ ] Characteristic Handles: 0x0004..0x0005 Properties: 0x0a UUID: 2a01 (Appearance)
[ ] Characteristic Handles: 0x0006..0x0007 Properties: 0x02 UUID: 2a04 (Peripheral Preferred Connection Parameters)
[ ] Characteristic Handles: 0x0008..0x0009 Properties: 0x02 UUID: 2ac9
[-------------------] Service Handles: 0x000a..0x000d UUID: 1801 (Generic Attribute)
[ ] Characteristic Handles: 0x000b..0x000c Properties: 0x22 UUID: 2a05 (Service Changed)
[-------------------] Service Handles: 0x000e..0x001a UUID: 57485f53-4b43-4f52-5f49-4c4c45544e49
[ ] Characteristic Handles: 0x000f..0x0010 Properties: 0x1a UUID: 11205f53-4b43-4f52-5f49-4c4c45544e49
[ ] Characteristic Handles: 0x0013..0x0014 Properties: 0x1a UUID: 12205f53-4b43-4f52-5f49-4c4c45544e49
[ ] Characteristic Handles: 0x0017..0x0018 Properties: 0x12 UUID: 13205f53-4b43-4f52-5f49-4c4c45544e49
[-------------------] Service Handles: 0x001b..0x0025 UUID: 00fe0000-0000-0000-0000-00000000f002
[ ] Characteristic Handles: 0x001c..0x001d Properties: 0x02 UUID: 03ff0000-0000-0000-0000-00000000f002
[ ] Characteristic Handles: 0x001e..0x001f Properties: 0x12 UUID: 02ff0000-0000-0000-0000-00000000f002
[ ] Characteristic Handles: 0x0022..0x0023 Properties: 0x02 UUID: 00ff0000-0000-0000-0000-00000000f002
[ ] Characteristic Handles: 0x0024..0x0025 Properties: 0x0c UUID: 01ff0000-0000-0000-0000-00000000f002
[2024-02-04T04:01:31] [D0:35:33:33:44:03] Download from device. 2024-01-14 20:00:00 2024-02-03 20:00:00 (28800)
```

## BTData directory contains Data Dumps
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39 changes: 9 additions & 30 deletions goveebttemplogger.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2234,17 +2234,17 @@ int bt_LEScan(int BlueToothDevice_Handle, const bool enable, const std::set<bdad
}
else
{
if (ConsoleVerbosity > 0)
if (ConsoleVerbosity > 1)
std::cout << "[" << getTimeISO8601() << "] BlueTooth Address Filter:";
for (auto & iter : BT_WhiteList)
{
const bdaddr_t FilterAddress(iter);
bool bRandomAddress = (FilterAddress.b[5] >> 4 == 0xC || FilterAddress.b[5] >> 4 == 0xD); // If the two most significant bits of the address are set to 1, it is defined as a Random Static Address
hci_le_add_white_list(BlueToothDevice_Handle, &FilterAddress, (bRandomAddress ? LE_RANDOM_ADDRESS : LE_PUBLIC_ADDRESS), bt_TimeOut);
if (ConsoleVerbosity > 0)
if (ConsoleVerbosity > 1)
std::cout << " [" << ba2string(FilterAddress) << "]";
}
if (ConsoleVerbosity > 0)
if (ConsoleVerbosity > 1)
std::cout << std::endl;
}
bt_ScanFilterPolicy = 0x01; // Scan Filter Policy: Accept only advertisements from devices in the White List. Ignore directed advertisements not addressed to this device (0x01)
Expand Down Expand Up @@ -2327,14 +2327,15 @@ time_t ConnectAndDownload(int BlueToothDevice_Handle, const bdaddr_t GoveeBTAddr
{
// Bluetooth HCI Command - LE Create Connection (BD_ADDR: e3:5e:cc:21:5c:0f (e3:5e:cc:21:5c:0f))
uint16_t handle = 0;
bool bRandomAddress = (GoveeBTAddress.b[5] >> 4 == 0xC || GoveeBTAddress.b[5] >> 4 == 0xD); // If the two most significant bits of the address are set to 1, it is defined as a Random Static Address
int iRet = hci_le_create_conn(
BlueToothDevice_Handle,
96, // interval, Scan Interval: 96 (60 msec)
48, // window, Scan Window: 48 (30 msec)
0x00, // initiator_filter, Initiator Filter Policy: Use Peer Address (0x00)
0x00, // peer_bdaddr_type, Peer Address Type: Public Device Address (0x00)
(bRandomAddress ? LE_RANDOM_ADDRESS : LE_PUBLIC_ADDRESS), // peer_bdaddr_type, Peer Address Type: Public Device Address (0x00)
GoveeBTAddress, // BD_ADDR: e3:5e:cc:21:5c:0f (e3:5e:cc:21:5c:0f)
0x01, // own_bdaddr_type, Own Address Type: Random Device Address (0x01)
LE_RANDOM_ADDRESS, // own_bdaddr_type, Own Address Type: Random Device Address (0x01)
24, // min_interval, Connection Interval Min: 24 (30 msec)
40, // max_interval, Connection Interval Max: 40 (50 msec)
0, // latency, Connection Latency: 0 (number events)
Expand All @@ -2344,30 +2345,8 @@ time_t ConnectAndDownload(int BlueToothDevice_Handle, const bdaddr_t GoveeBTAddr
&handle,
15000); // A 15 second timeout gives me a better chance of success
if (ConsoleVerbosity > 0)
std::cout << "[" << getTimeISO8601() << "] [" << ba2string(GoveeBTAddress) << "] hci_le_create_conn Return(" << std::dec << iRet << ") handle (" << std::hex << std::setw(4) << std::setfill('0') << handle << ") Peer Address Type: Public Device Address (0x00)" << std::endl;
if ((iRet != 0) && (handle == 0))
{
// the H5100 device used Random Device Address for its connection when I captured data.
iRet = hci_le_create_conn(
BlueToothDevice_Handle,
96, // interval, Scan Interval: 96 (60 msec)
48, // window, Scan Window: 48 (30 msec)
0x00, // initiator_filter, Initiator Filter Policy: Use Peer Address (0x00)
0x01, // Peer Address Type: Random Device Address (0x01)
GoveeBTAddress, // BD_ADDR: c2:35:33:30:25:50 (c2:35:33:30:25:50)
0x01, // own_bdaddr_type, Own Address Type: Random Device Address (0x01)
24, // min_interval, Connection Interval Min: 24 (30 msec)
40, // max_interval, Connection Interval Max: 40 (50 msec)
0, // latency, Connection Latency: 0 (number events)
2000, // supervision_timeout, Supervision Timeout: 2000 (20 sec)
0, // min_ce_length, Min CE Length: 0 (0 msec)
0, // max_ce_length, Max CE Length: 0 (0 msec)
&handle,
15000); // A 15 second timeout gives me a better chance of success
if (ConsoleVerbosity > 0)
std::cout << "[" << getTimeISO8601() << "] [" << ba2string(GoveeBTAddress) << "] hci_le_create_conn Return(" << std::dec << iRet << ") handle (" << std::hex << std::setw(4) << std::setfill('0') << handle << ") Peer Address Type: Random Device Address (0x01)" << std::endl;
}
#ifdef BT_READ_REMOTE_FEATURES
std::cout << "[" << getTimeISO8601() << "] [" << ba2string(GoveeBTAddress) << "] hci_le_create_conn Return(" << std::dec << iRet << ") handle (" << std::hex << std::setw(4) << std::setfill('0') << handle << ")" << std::endl;
#ifdef BT_READ_REMOTE_FEATURES
if ((iRet == 0) && (handle != 0))
{
// Bluetooth HCI Command - LE Read Remote Features
Expand Down Expand Up @@ -2440,7 +2419,7 @@ time_t ConnectAndDownload(int BlueToothDevice_Handle, const bdaddr_t GoveeBTAddr
memset(&dstaddr, 0, sizeof(dstaddr));
dstaddr.l2_family = AF_BLUETOOTH;
dstaddr.l2_cid = htobs(ATT_CID);
dstaddr.l2_bdaddr_type = BDADDR_LE_PUBLIC;
dstaddr.l2_bdaddr_type = bRandomAddress ? BDADDR_LE_RANDOM : BDADDR_LE_PUBLIC;
bacpy(&dstaddr.l2_bdaddr, &GoveeBTAddress);
if (connect(l2cap_socket, (struct sockaddr*)&dstaddr, sizeof(dstaddr)) < 0)
{
Expand Down

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