Merge pull request #1968 from openmv/examples_update

scripts/examples: Update WiFi and Bluetooth examples.
This commit is contained in:
Ibrahim Abdelkader 2023-10-09 17:36:15 +03:00 committed by GitHub
commit 6d1c4cd4fb
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
18 changed files with 289 additions and 36 deletions

View File

@ -3,6 +3,7 @@
# This example shows how to connect your OpenMV Cam with a WiFi shield to the net.
import network
import time
SSID = "" # Network SSID
KEY = "" # Network key

View File

@ -3,7 +3,7 @@
# This example shows how to get the IP address for websites via DNS.
import network
import usocket
import time
SSID = "" # Network SSID
KEY = "" # Network key

View File

@ -2,6 +2,7 @@
import network
import socket
import time
# AP info
SSID = "" # Network SSID

View File

@ -1,7 +1,8 @@
# Simple HTTPS client example.
import network
import socket
import ussl
import ssl
import time
# AP info
SSID = "" # Network SSID
@ -34,7 +35,7 @@ client.connect(addr)
# Set timeout
client.settimeout(3.0)
client = ussl.wrap_socket(client, server_hostname=HOST)
client = ssl.wrap_socket(client, server_hostname=HOST)
# Send HTTP request and recv response
request = "GET / HTTP/1.1\r\n"

View File

@ -4,8 +4,8 @@
import network
import socket
import ustruct
import utime
import struct
import time
SSID = "" # Network SSID
KEY = "" # Network key
@ -36,5 +36,5 @@ client.sendto("\x1b" + 47 * "\0", addr)
data, address = client.recvfrom(1024)
# Print time
t = ustruct.unpack(">IIIIIIIIIIII", data)[10] - TIMESTAMP
print("Year:%d Month:%d Day:%d Time: %d:%d:%d" % (utime.localtime(t)[0:6]))
t = struct.unpack(">IIIIIIIIIIII", data)[10] - TIMESTAMP
print("Year:%d Month:%d Day:%d Time: %d:%d:%d" % (time.localtime(t)[0:6]))

View File

@ -4,8 +4,8 @@
import network
import socket
import ustruct
import utime
import struct
import time
SSID = "" # Network SSID
KEY = "" # Network key
@ -35,5 +35,5 @@ client.sendto("\x1b" + 47 * "\0", addr)
data, address = client.recvfrom(1024)
# Print time
t = ustruct.unpack(">IIIIIIIIIIII", data)[10] - TIMESTAMP
print("Year:%d Month:%d Day:%d Time: %d:%d:%d" % (utime.localtime(t)[0:6]))
t = struct.unpack(">IIIIIIIIIIII", data)[10] - TIMESTAMP
print("Year:%d Month:%d Day:%d Time: %d:%d:%d" % (time.localtime(t)[0:6]))

View File

@ -0,0 +1,61 @@
# Bluetooth Blinky Example
#
# Use nRFConnect app from the App store, connect to the Nano and write 1/0 to control the LED.
import bluetooth
import time
from ble_advertising import advertising_payload
from machine import LED
from micropython import const
_IRQ_CENTRAL_CONNECT = const(1)
_IRQ_CENTRAL_DISCONNECT = const(2)
_IRQ_GATTS_WRITE = const(3)
_FLAG_READ = const(0x0002)
_FLAG_WRITE = const(0x0008)
_FLAG_NOTIFY = const(0x0010)
_FLAG_INDICATE = const(0x0020)
_SERVICE_UUID = bluetooth.UUID(0x1523)
_LED_CHAR_UUID = (bluetooth.UUID(0x1525), _FLAG_WRITE)
_LED_SERVICE = (
_SERVICE_UUID,
(_LED_CHAR_UUID,),
)
class BLETemperature:
def __init__(self, ble, name="Nicla-Vision"):
self._ble = ble
self._ble.active(True)
self._ble.irq(self._irq)
((self._handle,),) = self._ble.gatts_register_services((_LED_SERVICE,))
self._connections = set()
self._payload = advertising_payload(name=name, services=[_SERVICE_UUID])
self._advertise()
self.led = LED("LED_BLUE")
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_WRITE:
self.led.value(self._ble.gatts_read(data[-1])[0])
def _advertise(self, interval_us=500000):
self._ble.gap_advertise(interval_us, adv_data=self._payload)
if __name__ == "__main__":
ble = bluetooth.BLE()
temp = BLETemperature(ble)
while True:
time.sleep_ms(1000)

View File

@ -8,7 +8,7 @@ import random
import struct
import time
from ble_advertising import advertising_payload
from machine import LED
from micropython import const
_IRQ_CENTRAL_CONNECT = const(1)
@ -36,7 +36,7 @@ _ADV_APPEARANCE_GENERIC_THERMOMETER = const(768)
class BLETemperature:
def __init__(self, ble, name="PORTENTA_BLE"):
def __init__(self, ble, name="Nicla-Vision"):
self._ble = ble
self._ble.active(True)
self._ble.irq(self._irq)
@ -48,17 +48,20 @@ class BLETemperature:
appearance=_ADV_APPEARANCE_GENERIC_THERMOMETER,
)
self._advertise()
self.led = LED("LED_BLUE")
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)
self.led.on()
elif event == _IRQ_CENTRAL_DISCONNECT:
conn_handle, _, _ = data
self._connections.remove(conn_handle)
# Start advertising again to allow a new connection.
self._advertise()
self.led.off()
elif event == _IRQ_GATTS_INDICATE_DONE:
conn_handle, value_handle, status = data
@ -79,7 +82,7 @@ class BLETemperature:
self._ble.gap_advertise(interval_us, adv_data=self._payload)
def demo():
if __name__ == "__main__":
ble = bluetooth.BLE()
temp = BLETemperature(ble)
@ -93,7 +96,3 @@ def demo():
# Random walk the temperature.
t += random.uniform(-0.5, 0.5)
time.sleep_ms(1000)
if __name__ == "__main__":
demo()

View File

@ -0,0 +1,63 @@
from micropython import const
import uasyncio as asyncio
import aioble
import bluetooth
import random
import struct
# org.bluetooth.service.environmental_sensing
_ENV_SENSE_UUID = bluetooth.UUID(0x181A)
# org.bluetooth.characteristic.temperature
_ENV_SENSE_TEMP_UUID = bluetooth.UUID(0x2A6E)
# org.bluetooth.characteristic.gap.appearance.xml
_ADV_APPEARANCE_GENERIC_THERMOMETER = const(768)
# How frequently to send advertising beacons.
_ADV_INTERVAL_MS = 250_000
# Register GATT server.
temp_service = aioble.Service(_ENV_SENSE_UUID)
temp_characteristic = aioble.Characteristic(
temp_service, _ENV_SENSE_TEMP_UUID, read=True, notify=True
)
aioble.register_services(temp_service)
# Helper to encode the temperature characteristic encoding (sint16, hundredths of a degree).
def _encode_temperature(temp_deg_c):
return struct.pack("<h", int(temp_deg_c * 100))
# This would be periodically polling a hardware sensor.
async def sensor_task():
t = 24.5
while True:
temp_characteristic.write(_encode_temperature(t))
t += random.uniform(-0.5, 0.5)
await asyncio.sleep_ms(1000)
# Serially wait for connections. Don't advertise while a central is
# connected.
async def peripheral_task():
while True:
async with await aioble.advertise(
_ADV_INTERVAL_MS,
name="Nicla-Vision",
services=[_ENV_SENSE_UUID],
appearance=_ADV_APPEARANCE_GENERIC_THERMOMETER,
) as connection:
print("Connection from", connection.device)
await connection.disconnected()
# Run both tasks.
async def main():
t1 = asyncio.create_task(sensor_task())
t2 = asyncio.create_task(peripheral_task())
await asyncio.gather(t1, t2)
asyncio.run(main())

View File

@ -3,6 +3,7 @@
# This example shows how to connect your OpenMV Cam with a WiFi shield to the net.
import network
import time
SSID = "" # Network SSID
KEY = "" # Network key

View File

@ -3,7 +3,7 @@
# This example shows how to get the IP address for websites via DNS.
import network
import usocket
import time
SSID = "" # Network SSID
KEY = "" # Network key

View File

@ -2,6 +2,7 @@
import network
import socket
import time
# AP info
SSID = "" # Network SSID

View File

@ -1,7 +1,8 @@
# Simple HTTPS client example.
import network
import socket
import ussl
import ssl
import time
# AP info
SSID = "" # Network SSID
@ -34,7 +35,7 @@ client.connect(addr)
# Set timeout
client.settimeout(3.0)
client = ussl.wrap_socket(client, server_hostname=HOST)
client = ssl.wrap_socket(client, server_hostname=HOST)
# Send HTTP request and recv response
request = "GET / HTTP/1.1\r\n"

View File

@ -4,8 +4,8 @@
import network
import socket
import ustruct
import utime
import struct
import time
SSID = "" # Network SSID
KEY = "" # Network key
@ -13,6 +13,7 @@ KEY = "" # Network key
TIMESTAMP = 2208988800 + 946684800
# Init wlan module and connect to network
print("Trying to connect... (This may take a while)...")
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(SSID, KEY)
@ -35,5 +36,5 @@ client.sendto("\x1b" + 47 * "\0", addr)
data, address = client.recvfrom(1024)
# Print time
t = ustruct.unpack(">IIIIIIIIIIII", data)[10] - TIMESTAMP
print("Year:%d Month:%d Day:%d Time: %d:%d:%d" % (utime.localtime(t)[0:6]))
t = struct.unpack(">IIIIIIIIIIII", data)[10] - TIMESTAMP
print("Year:%d Month:%d Day:%d Time: %d:%d:%d" % (time.localtime(t)[0:6]))

View File

@ -4,8 +4,8 @@
import network
import socket
import ustruct
import utime
import struct
import time
SSID = "" # Network SSID
KEY = "" # Network key
@ -35,5 +35,5 @@ client.sendto("\x1b" + 47 * "\0", addr)
data, address = client.recvfrom(1024)
# Print time
t = ustruct.unpack(">IIIIIIIIIIII", data)[10] - TIMESTAMP
print("Year:%d Month:%d Day:%d Time: %d:%d:%d" % (utime.localtime(t)[0:6]))
t = struct.unpack(">IIIIIIIIIIII", data)[10] - TIMESTAMP
print("Year:%d Month:%d Day:%d Time: %d:%d:%d" % (time.localtime(t)[0:6]))

View File

@ -0,0 +1,61 @@
# Bluetooth Blinky Example
#
# Use nRFConnect app from the App store, connect to the Nano and write 1/0 to control the LED.
import bluetooth
import time
from ble_advertising import advertising_payload
from machine import LED
from micropython import const
_IRQ_CENTRAL_CONNECT = const(1)
_IRQ_CENTRAL_DISCONNECT = const(2)
_IRQ_GATTS_WRITE = const(3)
_FLAG_READ = const(0x0002)
_FLAG_WRITE = const(0x0008)
_FLAG_NOTIFY = const(0x0010)
_FLAG_INDICATE = const(0x0020)
_SERVICE_UUID = bluetooth.UUID(0x1523)
_LED_CHAR_UUID = (bluetooth.UUID(0x1525), _FLAG_WRITE)
_LED_SERVICE = (
_SERVICE_UUID,
(_LED_CHAR_UUID,),
)
class BLETemperature:
def __init__(self, ble, name="Portenta-H7"):
self._ble = ble
self._ble.active(True)
self._ble.irq(self._irq)
((self._handle,),) = self._ble.gatts_register_services((_LED_SERVICE,))
self._connections = set()
self._payload = advertising_payload(name=name, services=[_SERVICE_UUID])
self._advertise()
self.led = LED("LED_BLUE")
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_WRITE:
self.led.value(self._ble.gatts_read(data[-1])[0])
def _advertise(self, interval_us=500000):
self._ble.gap_advertise(interval_us, adv_data=self._payload)
if __name__ == "__main__":
ble = bluetooth.BLE()
temp = BLETemperature(ble)
while True:
time.sleep_ms(1000)

View File

@ -8,7 +8,7 @@ import random
import struct
import time
from ble_advertising import advertising_payload
from machine import LED
from micropython import const
_IRQ_CENTRAL_CONNECT = const(1)
@ -36,7 +36,7 @@ _ADV_APPEARANCE_GENERIC_THERMOMETER = const(768)
class BLETemperature:
def __init__(self, ble, name="PORTENTA_BLE"):
def __init__(self, ble, name="Portenta-H7"):
self._ble = ble
self._ble.active(True)
self._ble.irq(self._irq)
@ -48,17 +48,20 @@ class BLETemperature:
appearance=_ADV_APPEARANCE_GENERIC_THERMOMETER,
)
self._advertise()
self.led = LED("LED_BLUE")
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)
self.led.on()
elif event == _IRQ_CENTRAL_DISCONNECT:
conn_handle, _, _ = data
self._connections.remove(conn_handle)
# Start advertising again to allow a new connection.
self._advertise()
self.led.off()
elif event == _IRQ_GATTS_INDICATE_DONE:
conn_handle, value_handle, status = data
@ -79,7 +82,7 @@ class BLETemperature:
self._ble.gap_advertise(interval_us, adv_data=self._payload)
def demo():
if __name__ == "__main__":
ble = bluetooth.BLE()
temp = BLETemperature(ble)
@ -93,7 +96,3 @@ def demo():
# Random walk the temperature.
t += random.uniform(-0.5, 0.5)
time.sleep_ms(1000)
if __name__ == "__main__":
demo()

View File

@ -0,0 +1,63 @@
from micropython import const
import uasyncio as asyncio
import aioble
import bluetooth
import random
import struct
# org.bluetooth.service.environmental_sensing
_ENV_SENSE_UUID = bluetooth.UUID(0x181A)
# org.bluetooth.characteristic.temperature
_ENV_SENSE_TEMP_UUID = bluetooth.UUID(0x2A6E)
# org.bluetooth.characteristic.gap.appearance.xml
_ADV_APPEARANCE_GENERIC_THERMOMETER = const(768)
# How frequently to send advertising beacons.
_ADV_INTERVAL_MS = 250_000
# Register GATT server.
temp_service = aioble.Service(_ENV_SENSE_UUID)
temp_characteristic = aioble.Characteristic(
temp_service, _ENV_SENSE_TEMP_UUID, read=True, notify=True
)
aioble.register_services(temp_service)
# Helper to encode the temperature characteristic encoding (sint16, hundredths of a degree).
def _encode_temperature(temp_deg_c):
return struct.pack("<h", int(temp_deg_c * 100))
# This would be periodically polling a hardware sensor.
async def sensor_task():
t = 24.5
while True:
temp_characteristic.write(_encode_temperature(t))
t += random.uniform(-0.5, 0.5)
await asyncio.sleep_ms(1000)
# Serially wait for connections. Don't advertise while a central is
# connected.
async def peripheral_task():
while True:
async with await aioble.advertise(
_ADV_INTERVAL_MS,
name="Portenta-H7",
services=[_ENV_SENSE_UUID],
appearance=_ADV_APPEARANCE_GENERIC_THERMOMETER,
) as connection:
print("Connection from", connection.device)
await connection.disconnected()
# Run both tasks.
async def main():
t1 = asyncio.create_task(sensor_task())
t2 = asyncio.create_task(peripheral_task())
await asyncio.gather(t1, t2)
asyncio.run(main())