def main():
print "Connecting to BLE Dongle . . ."
bt = ble.BTDongle(port='/dev/ttyACM0')
print "Discovering BLE devices in the vicinity . . ."
devs = bt.discover()
print "BLE Devices found: ", devs
print "Changing conncection parameters . . ."
bt.changeConnectionSettings()
print "Establishing link to the first device found . . ."
print bt.link(devs[0])
print "Enabling notifications . . ."
print bt.enableNotifications('0x002F')
ecgPlot = streamplot.StreamPlot(saveFileNameStart="ecg_plot",
lines=[('l', 'r', 'ecg')],
exitforce=True)
ecgPlot.addDataPoint(0, [0])
Tsample = 1 / 400.0 # in seconds
t = 0
for evt in bt.pollNotifications():
if len(evt) == 16:
f2s = lambda x: x if x < 2**13 or x >= 65530 else (-2**14 + x)
vals = [
f2s(lsb + 256 * msb)
for (lsb, msb) in zip(evt[::2], evt[1::2])
]
vals = [val for val in vals if val < 65530]
for val in vals:
t += Tsample
ecgPlot.addDataPoint(t, [val])
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
'''
import streamplot
# create a stream plot containing two channels. First one shown by a solid red line and the second one by a solid blue line
myPlot = streamplot.StreamPlot(saveFileNameStart="my_plot",
lines=[('l', 'r', 'redPlot'),
('l', 'b', 'bluePlot')])
# add two data points
myPlot.addDataPoint(
0,
[99, 98
]) # at time t=0, channel 0 has y-value 99 and channel 1 has y-value 98
myPlot.addDataPoint(
1,
[50, 38
]) # at time t=1, channel 0 has y-value 50 and channel 1 has y-value 38
# wait for the user to hit the exit button on the GUI
myPlot.waitUntilExit()
# 01 - MSB 6 bits
# 10 - debug out - 6 bits LSB
# 11 - debug out - 6 bits MSB
# waveform is reset when debug value of 4095 is sent
ser = serial.Serial('/dev/ttyUSB0', 115200, timeout=0)
ser.flushInput()
ser.flush()
def numKeyPressCallBack(num):
ser.write(str(num))
ecgPlot = streamplot.StreamPlot(saveFileNameStart="ecg_plot",
lines=[('l', 'r', 'ecg')],
exitforce=True,
numKeyPressCallBack=numKeyPressCallBack)
Tsample = 1e-3 # in second
printdebug = True
def uartread():
serbuf = ""
data = 0
debugdata = 0
t = 0
while True:
serbuf += ser.read(100000)
for c in serbuf:
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
'''
import streamplot
import time
# create a stream plot containing two channels. First one shown by a solid red line and the second one by blue dots
myPlot = streamplot.StreamPlot(saveFileNameStart="my_plot",
lines=[('l', 'r', 'redPlot'),
('o', 'b', 'bluePlot')],
legend=True,
exitforce=True)
def run():
t = 0
while True:
#a ramp-up
if t == 400:
t = 0
myPlot.resetPlot()
for i in range(100):
time.sleep(0.05)
myPlot.addDataPoint(t, [
i, i + 2