Closed 53845714nF closed 9 months ago
Hi Sebastian,
Have you tried using the pre-compiled version available from here https://github.com/ DeanCording/owonb35/releases/download/v1.4.0/owonb35
You will also need to install the gatlib library from here https://github.com/labapart/ gattlib/releases/download/dev/gattlib_0.2-dev_x86_64.deb
Cheers,
Dean
On Monday, 28 October 2019 17:58:25 AEST 53845714nF wrote:
Hello DeanCording,I don't have that much experience compiling programs. When I call
"make" I get this error message.
cc -Wall -O2 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include owonb35.c
-o owonb35 -lgattlib -lglib-2.0 -lm
owonb35.c: In function ‘connect_device’:
owonb35.c:575:71: error: ‘BT_SEC_LOW’ undeclared (first use in this function); did you
mean ‘BT_SECURITY’?
connection = gattlib_connect(NULL, address, BDADDR_LE_PUBLIC, BT_SEC_LOW, 0, 0);
^~~~~~
BT_SECURITY
owonb35.c:575:71: note: each undeclared identifier is reported only once for each function
it appears in
owonb35.c:575:22: error: too many arguments to function ‘gattlib_connect’
connection = gattlib_connect(NULL, address, BDADDR_LE_PUBLIC, BT_SEC_LOW, 0, 0);
^~~~~~~
In file included from owonb35.c:38:0:
/usr/include/gattlib.h:276:20: note: declared here
gatt_connection_t gattlib_connect(const char src, const char dst, unsigned long
options);
^~~~~~~
owonb35.c: In function ‘main’:
owonb35.c:764:56: warning: passing argument 2 of ‘gattlib_adapter_scan_enable’ from
incompatible pointer type [-Wincompatible-pointer-types]
ret = gattlib_adapter_scan_enable(adapter, ble_discovered_device,
BLE_SCAN_TIMEOUT);
^~~~~
In file included from owonb35.c:38:0:
/usr/include/gattlib.h:214:5: note: expected ‘gattlib_discovered_device_t {aka void ()(void
, const char , const char , void )}’ but argument is of type ‘void ()(const char , const
char )’
int gattlib_adapter_scan_enable(void adapter, gattlib_discovered_device_t
discovered_device_cb, int timeout, void user_data);
^~~~~~~
owonb35.c:764:19: error: too few arguments to function ‘gattlib_adapter_scan_enable’
ret = gattlib_adapter_scan_enable(adapter, ble_discovered_device,
BLE_SCAN_TIMEOUT);
^~~~~~~
In file included from owonb35.c:38:0:
/usr/include/gattlib.h:214:5: note: declared here
int gattlib_adapter_scan_enable(void adapter, gattlib_discovered_device_t
discovered_device_cb, int timeout, void *user_data);
^~~~~~~
owonb35.c:859:74: warning: passing argument 3 of ‘gattlib_read_char_by_uuid’ from
incompatible pointer type [-Wincompatible-pointer-types]
ret = gattlib_read_char_by_uuid(connection, &g_command_uuid, buffer, &len);
^~
In file included from owonb35.c:38:0:
/usr/include/gattlib.h:418:5: note: expected ‘void ’ but argument is of type ‘uint8_t {aka
unsigned char }’
int gattlib_read_char_by_uuid(gatt_connection_t connection, uuid_t uuid, void buffer,
size_t* buffer_len);
^~~~~~~~~
Makefile:16: recipe for target 'owonb35' failed
make: *** [owonb35] Error 1
Even if I use the pre-compiled version I get an error message. error while loading shared libraries: libpython3.5m.so.1.0: cannot open shared object file: No such file or directory
I use Linux Mint 19 Tara and my last Python Version is 3.6.8 .I hope you can help me. With best regardsSebastian —You are receiving this because you are subscribed to this thread.Reply to this email directly, view it on GitHub[1], or unsubscribe[2].[3]
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Hello Dean, Thank you for the quick reply. I downloaded the GattLib with Bluez Legacy Support and your pre-compiled owonb35. The program starts but I don't get a connection to my Multimeter (OWON B35T+). If i run without the Mac Address, I get this:
sudo ./owonb35
Scanning...
Multimeter device not found.
Scanning...
Multimeter device not found.
Scanning...
Multimeter device not found.
Scanning...
Multimeter device not found.
If i run with the Mac Address, i get this:
sudo ./owonb35 34:15:13:D1:00:80
Connecting...
Error: gattlib_connect - initialization
Fail to connect to the multimeter bluetooth device.
Connecting...
Error: gattlib_connect - initialization
Fail to connect to the multimeter bluetooth device.
Connecting...
Error: gattlib_connect - initialization
Fail to connect to the multimeter bluetooth device.
Furthermore, I still can't complicate the program myself. I still get the same error, also on other distributions.
Best regards Sebastian
Is your multimeter new or old? Owon changed the multimeter chipset before I wrote this code. The old chipset uses a different protocol. There is a client for the old chipset available which I think I link to on my GitHub page.DeanOn Nov 3, 2019 00:12, 53845714nF notifications@github.com wrote:Hello Dean, Thank you for the quick reply. I downloaded the GattLib with Bluez Legacy Support and your pre-compiled owonb35. The program starts but I don't get a connection to my Multimeter (OWON B35T+). If i run without the Mac Address, I get this: ''' sudo ./owonb35 Scanning... Multimeter device not found. Scanning... Multimeter device not found. Scanning... Multimeter device not found. Scanning... Multimeter device not found. ''' If i run with the Mac Address, i get this: ''' sudo ./owonb35 34:15:13:D1:00:80 Connecting... Error: gattlib_connect - initialization Fail to connect to the multimeter bluetooth device. Connecting... Error: gattlib_connect - initialization Fail to connect to the multimeter bluetooth device. Connecting... Error: gattlib_connect - initialization Fail to connect to the multimeter bluetooth device. ''' Furthermore, I still can't complicate the program myself. I still get the same error, also on other distributions. Best regards Sebastian
—You are receiving this because you commented.Reply to this email directly, view it on GitHub, or unsubscribe.
Hello,
If i use the gatttool -I
Command and I get 6 Byte from my Multimeter:
gatttool -I
[ ][LE]> connect 34:15:13:D1:00:80
Attempting to connect to 34:15:13:D1:00:80
Connection successful
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 34 0e
Notification handle = 0x002e value: 19 f0 04 00 33 0e
Notification handle = 0x002e value: 19 f0 04 00 33 0e
Notification handle = 0x002e value: 19 f0 04 00 33 0e
And on the backside of my Multimeter are this number: B35T+17480312 BLE4.0
Thank you for your help. With best regards Sebastian
The data you are receiving is correct. It shows your meter is set to DCmV auto with a reading of 363.5.
It does seem strange that gattool connects but not owonb35.
Yeah, you're right. But i think the Problem is in the gattlib_connect function.
Best Sebastian
Hello DeanCording, I don't have that much experience compiling programs. When I call "make" I get this error message.
Even if I use the pre-compiled version I get an error message.
I use Linux Mint 19 Tara and my last Python Version is 3.6.8 . I hope you can help me.
With best regards Sebastian