[announce] LightBlue 0.2.2, working for 3rd edition

[buzz111]

Hi,

I've released a 0.2.2 version of LightBlue, a cross-platform Bluetooth api for Mac OS X, Linux and Python for Series 60. The new version properly fixes the PyS60 3rd Edition builds which were not working in the last version. There is a self-signed sis and also an unsigned freedevcert version available.

This release also fixes issues with getting the local device address on 2nd Edition FP1 & FP2 builds.

The downloads are available at http://lightblue.sourceforge.net and also the sourceforge page at http://sourceforge.net/projects/lightblue

Feel free to email if there are any issues with the new version.

[cyke64]

Thank you very much Buzz111

BR
Cyke64

[buzz111]

Hey, thanks for checking it works

[carknue]

Hello,

I'm using LightBlue for a kind of bluetooth scanner. So I call

finddevices() continiously. I make sure that it will not be called a second time if the previous scan is still running. But sometimes the finddevices() function does not respond anymore. I would be nice to have a timeout after that the function aborts the BT scan and returns an empty list.

Now I have to quit my script an turn off BT and start again if the scan hangs.

I also measured the time for a bluetooth scan it varies from 10 to 60 sec. Maybe the timeout could be an optional argument.

[buzz111]

Hello,
I'm using LightBlue for a kind of bluetooth scanner. So I call

finddevices() continiously. I make sure that it will not be called a second time if the previous scan is still running. But sometimes the finddevices() function does not respond anymore. I would be nice to have a timeout after that the function aborts the BT scan and returns an empty list.

How are you using finddevices() in your code? Do you have some code that I can use to reproduce this bug?

The 'length' argument is meant to provide a timeout value, but there were some problems getting it working on PyS60. I'll take another look at it.

[aaaaapo]

I also measured the time for a bluetooth scan it varies from 10 to 60 sec. Maybe the timeout could be an optional argument.

In my measurings (<200 times) scan duration varies from 12 to 290 seconds. Average is 44 secs and median 26 secs. In "noisy" places is seems to be normal to have scans which take over 60 seconds.

Phone model is Nokia E70.

[carknue]

This is my code. loop is called every second.

def bt_mainthread():
	global bt_busy
	thread.start_new_thread(bt_scan,())
	time.sleep(1)
	while bt_busy and (bt_scan_time < 120):
		time.sleep(1)
	if bt_scan_time > 119:
		blues.off()
		time.sleep(5)
		blues.on()
		time.sleep(5)
		bt_busy = False
		
def bt_scan():
	global btscan, btquery_list, bt_busy, bt_scan_time
	bt_busy = True
	bt_scan_time = 0
	try:
		btscan = lightblue.finddevices()
	except:
		btscan = []
	btquery_list = []
	for i in range(len(btscan)):
		btquery_list.append(query_bt(btscan[i]))
	bt_busy = False

def loop():
   global bt_busy, bt_scan_time
   if config['BT_SCAN'] > 0 and not bt_busy:
	bti += 1
	if (bti > config['BT_SCAN']*1) and not bt_busy:
	   bti = 0
	   thread.start_new_thread(bt_mainthread,())

			
   if bt_busy:
	bt_block += 1
	bt_scan_time += 1

[carknue]

btscan = lightblue.finddevices()

the finddevices() command sometimes gives no answer on e90 or n95. I waited 500 sec but nothing. The thread hangs at this call forever. How to terminate the finddevices() function?

In Pynetmony I switch off BT after 120 seconds and start then a new search, but the old thread is still in memory.

PyNetMony

[carknue]

Would it be possible to get the signalstrength in dBm of the found BT devices? And would it be possible to get the TX Power class of the devices (10m or 100m range)?

[wujunbao]

I installed lightblue into my 5700 phone without any problem (both ss and dev certificate), but when I run 'import lightblue' under pys60 shell, it raised 'ImportError:No module named lightblue', is there anything wrong? how can I solve this problem?

Thank you.

[wujunbao]

I got it, sorry.
lightblue-0.3.2-s60-3rdEd_freedevcert.sis + online sign with 13 caps