Arduino Nano RP2040 Connect
https://docs.arduino.cc/learn/programming/arduino-and-python
https://docs.arduino.cc/hardware/nano-rp2040-connect
How to control the Builtin LED MicroPython
this is GPIO6 (D13 in Arduino)
from machine import Pin
from time import sleep
# using the internal LED on the Pico - pin 25
myLED = Pin(6, Pin.OUT)
while True:
# this switches the LED on for 1 second
myLED.on()
sleep(0.1)
# this switches the LED off for 500 ms
myLED.off()
sleep(0.5)
Example of a WIFI-Access Point and Webserver to control the LED
# Wi-Fi AP Mode Example
#
# This example shows how to use Wi-Fi in Access Point mode.
# this version by Albrecht Schmidt, https://www.sketching-with-hardware.org/wiki/
# based on the following examples:
# https://randomnerdtutorials.com/esp32-esp8266-micropython-web-server/
# https://docs.arduino.cc/tutorials/nano-rp2040-connect/rp2040-python-api
import network, socket, time
from machine import Pin
led = Pin(6, Pin.OUT) #on board LED
SSID ='Nano_RP2040_Connect_test' # Network SSID
KEY ='12345678' # Network key (should be 8 chars) - for real use, choose a safe one
HOST = ''
PORT = 80 # 80 ist the http standard port, can also use non-privileged port e.g. 8080
# Init wlan module and connect to network
wlan = network.WLAN(network.AP_IF)
wlan.active(True)
# it seems in this version the AP mode only supports WEP
wlan.config(essid=SSID, key=KEY, security=wlan.WEP, channel=2)
print("AP mode started. SSID: {} IP: {}".format(SSID, wlan.ifconfig()[0]))
# create the webpage with a button to toggle the LED
def web_page():
if led.value() == 1:
led_state="ON"
else:
led_state="OFF"
html ="""<html><head>
<title>Nano RP2040 Connnect Web Server</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" href="data:,">
</head>
<body>
<h1>Nano RP2040 Connnect </1>
<h2>Web Server Test</h2>
<p>LED state: <strong>""" + led_state + """</strong></p><p><a href="/?led=on"><button class="button">ON</button></a></p>
<p><a href="/?led=off"><button class="button button2">OFF</button></a></p>
</body>
</html>"""
return html
# get started with setting up the sever sockedt
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# Bind and listen
server.bind([HOST, PORT])
server.listen(5)
# loop to deal with http requests
while True:
conn, addr = server.accept()
print('Connection from %s' % str(addr))
request = conn.recv(1024)
request = str(request)
print('Request Content = %s' % request)
# check if the request includes led=on or off
led_on = request.find('/?led=on')
led_off = request.find('/?led=off')
# request is 'GET /?led=on' or 'GET /?led=off' - the string starts at position 6 (counting starts at 0)
if led_on == 6:
print('LED ON')
led.value(1)
if led_off == 6:
print('LED OFF')
led.value(0)
response = web_page()
conn.send('HTTP/1.1 200 OK\n')
conn.send('Content-Type: text/html\n')
conn.send('Connection: close\n\n')
conn.send(response)
conn.close()