Merge pull request #1284 from openmv/portenta_ble

Portenta ble
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Ibrahim Abd Elkader 2021-04-27 23:00:35 +02:00 committed by GitHub
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6 changed files with 106 additions and 5 deletions

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@ -0,0 +1,97 @@
# This example demonstrates a simple temperature sensor peripheral.
#
# The sensor's local value updates every second, and it will notify
# any connected central every 10 seconds.
import bluetooth
import random
import struct
import time
from ble_advertising import advertising_payload
from micropython import const
_IRQ_CENTRAL_CONNECT = const(1)
_IRQ_CENTRAL_DISCONNECT = const(2)
_IRQ_GATTS_INDICATE_DONE = const(20)
_FLAG_READ = const(0x0002)
_FLAG_NOTIFY = const(0x0010)
_FLAG_INDICATE = const(0x0020)
# org.bluetooth.service.environmental_sensing
_ENV_SENSE_UUID = bluetooth.UUID(0x181A)
# org.bluetooth.characteristic.temperature
_TEMP_CHAR = (
bluetooth.UUID(0x2A6E),
_FLAG_READ | _FLAG_NOTIFY | _FLAG_INDICATE,
)
_ENV_SENSE_SERVICE = (
_ENV_SENSE_UUID,
(_TEMP_CHAR,),
)
# org.bluetooth.characteristic.gap.appearance.xml
_ADV_APPEARANCE_GENERIC_THERMOMETER = const(768)
class BLETemperature:
def __init__(self, ble, name="PORTENTA_BLE"):
self._ble = ble
self._ble.active(True)
self._ble.irq(self._irq)
((self._handle,),) = self._ble.gatts_register_services((_ENV_SENSE_SERVICE,))
self._connections = set()
self._payload = advertising_payload(
name=name, services=[_ENV_SENSE_UUID], appearance=_ADV_APPEARANCE_GENERIC_THERMOMETER
)
self._advertise()
def _irq(self, event, data):
# Track connections so we can send notifications.
if event == _IRQ_CENTRAL_CONNECT:
conn_handle, _, _ = data
self._connections.add(conn_handle)
elif event == _IRQ_CENTRAL_DISCONNECT:
conn_handle, _, _ = data
self._connections.remove(conn_handle)
# Start advertising again to allow a new connection.
self._advertise()
elif event == _IRQ_GATTS_INDICATE_DONE:
conn_handle, value_handle, status = data
def set_temperature(self, temp_deg_c, notify=False, indicate=False):
# Data is sint16 in degrees Celsius with a resolution of 0.01 degrees Celsius.
# Write the local value, ready for a central to read.
self._ble.gatts_write(self._handle, struct.pack("<h", int(temp_deg_c * 100)))
if notify or indicate:
for conn_handle in self._connections:
if notify:
# Notify connected centrals.
self._ble.gatts_notify(conn_handle, self._handle)
if indicate:
# Indicate connected centrals.
self._ble.gatts_indicate(conn_handle, self._handle)
def _advertise(self, interval_us=500000):
self._ble.gap_advertise(interval_us, adv_data=self._payload)
def demo():
ble = bluetooth.BLE()
temp = BLETemperature(ble)
t = 25
i = 0
while True:
# Write every second, notify every 10 seconds.
i = (i + 1) % 10
temp.set_temperature(t, notify=i == 0, indicate=False)
# Random walk the temperature.
t += random.uniform(-0.5, 0.5)
time.sleep_ms(1000)
if __name__ == "__main__":
demo()

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Subproject commit d592eaf460244b434d682ce6a8d14a9098f4b16f
Subproject commit dfed71345fc2191fb48191dead9ee6f827d6a9e0

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@ -126,7 +126,7 @@
#endif
// Enable FAST (20+ KBs).
#define IMLIB_ENABLE_FAST
//#define IMLIB_ENABLE_FAST
// Enable find_template()
#define IMLIB_FIND_TEMPLATE
@ -141,10 +141,10 @@
#define IMLIB_ENABLE_DESCRIPTOR
// Enable find_hog()
#define IMLIB_ENABLE_HOG
//#define IMLIB_ENABLE_HOG
// Enable selective_search()
#define IMLIB_ENABLE_SELECTIVE_SEARCH
//#define IMLIB_ENABLE_SELECTIVE_SEARCH
// Enable STM32 DMA2D
#define IMLIB_ENABLE_DMA2D

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@ -152,7 +152,7 @@
#define OMV_FB_SIZE (4M) // FB memory: header + VGA/GS image
#define OMV_FB_ALLOC_SIZE (3M) // minimum fb alloc size
#define OMV_STACK_SIZE (64K)
#define OMV_HEAP_SIZE (170K)
#define OMV_HEAP_SIZE (160K)
#define OMV_SDRAM_SIZE (8 * 1024 * 1024) // This needs to be here for UVC firmware.
#define OMV_LINE_BUF_SIZE (11 * 1024) // Image line buffer round(2592 * 2BPP * 2 buffers).

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@ -21,6 +21,8 @@ MICROPY_PY_ULAB = 1
MICROPY_PY_WINC1500 = 0
MICROPY_PY_LWIP = 1
MICROPY_PY_NETWORK_CYW43 = 1
MICROPY_PY_BLUETOOTH = 1
MICROPY_BLUETOOTH_NIMBLE = 1
MICROPY_PY_AUDIO = 1
MICROPY_PY_MICRO_SPEECH = 1
MICROPY_PY_LCD = 1

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@ -9,4 +9,6 @@
#ifndef __ULAB_CONFIG_H__
#define __ULAB_CONFIG_H__
// Override ulab defaults here.
#define NDARRAY_BINARY_USES_FUN_POINTER (1)
#define ULAB_SCIPY_HAS_OPTIMIZE_MODULE (1)
#endif //__ULAB_CONFIG_H__