install…
sudo apt-get install bluez
sudo hciconfig hci0 up
scan…
sudo hcitool lescan
or scan if no response...
sudo bluetoothctl
agent on
default-agent
scan on
other test...
using bluetoothctl
install bluepy…
https://github.com/IanHarvey/bluepy
sudo apt-get install python-pip libglib2.0-dev
sudo pip install bluepy
python test code…
from bluepy import btle
from bluepy.btle import Scanner, DefaultDelegate
import time
# Scan Delegate...
class ScanDelegate(DefaultDelegate):
def __init__(self):
DefaultDelegate.__init__(self)
def handleDiscovery(self, dev, isNewDev, isNewData):
if isNewDev:
print "Discovered device", dev.addr
elif isNewData:
print "Received new data from", dev.addr
print 'Scanning...'
scanner = Scanner().withDelegate(ScanDelegate())
devices = scanner.scan(3.0)
address = None
for dev in devices:
print "Device %s (%s), RSSI=%d dB" % (dev.addr, dev.addrType, dev.rssi)
for (adtype, desc, value) in dev.getScanData():
print " %s = %s" % (desc, value)
if desc == 'Complete Local Name' and value == 'YOUR_BLE_DEVICE_NAME':
address = dev.addr
print "Connecting..."
#address = "YOUR_FIX_DEVICE_MAC"
dev = btle.Peripheral( address )
print "Services..."
for svc in dev.services:
print str(svc)
chs = svc.getCharacteristics()
for ch in chs:
print ' ' + str(ch)
# Notification Delegate
class MyDelegate(btle.DefaultDelegate):
def __init__(self):
btle.DefaultDelegate.__init__(self)
# ... initialise here
def handleNotification(self, cHandle, data):
print 'handleNotification:' + str(data)
# ... perhaps check cHandle
# ... process 'data'
# Initialisation -------
dev.setDelegate( MyDelegate() )
service_uuid = btle.UUID("49535343-fe7d-4ae5-8fa9-9fafd205e455") # YOUR SERVICE UUID
char_uuid = btle.UUID("49535343-1e4d-4bd9-ba61-23c647249616") # YOUR CHARACTERISTICS UUID
# Setup to turn notifications on, e.g.
svc = dev.getServiceByUUID( service_uuid )
ch = svc.getCharacteristics( char_uuid )[0]
# Here is how to write a value to Notification Characteristic...
write_handle = ch.getHandle()
notify_handle = ch.getHandle() + 1
dev.writeCharacteristic( notify_handle, bytes("\x01"), withResponse=True)
time.sleep(1.0)
# Main loop --------
while True:
if dev.waitForNotifications(1.0):
# handleNotification() was called
continue
print "Waiting..."
# Perhaps do something else here
# Here is how to write a value to Characteristic
dev.writeCharacteristic( write_handle, bytes("A"), False ) # YOUR DATA
