Raspberry Pi Pico W/MicroPython act as socket client, connect to HC-25 WiFi Module.
It's my MicroPython exercise run on Raspberry Pi Pico W, to act as WiFi
station/socket client connect to
socket server on HC-25 WiFi Module.
Remark:
In my trial, it's unstable to connect to HC-25 when I stop Raspberry Pi Pico W/MicroPython and run again. May be need power OFF-ON, some delay, or handle something, I have no any idea right now!
mpyPicoW_SocketClient.py
"""
Raspberry Pi Pico W/MicroPython exercise:
A simple socket client connect to HC-25
ref:
Raspberry Pi Pico W official book:
Connecting to the Internet with Raspberry Pi Pico W
"""
import sys
import os
import time
import network
import socket
ssid = 'myHC-25'
password = 'password'
serverAddr = "192.168.4.1"
serverPort = 8080
# To know WLAN status
# It's helpflul in learning and debugging
def understandWLAN(wwlan):
print("------------------------------")
print("Information to understand wlan")
print(wwlan)
#print(dir(wwlan))
print("active(): ", wwlan.active())
print("isconnected(): ", wwlan.isconnected())
s = wwlan.status()
print("status() =", s)
if s == network.STAT_IDLE:
print("STAT_IDLE – no connection and no activity")
elif s == network.STAT_CONNECTING:
print("STAT_CONNECTING – connecting in progress")
elif s == network.STAT_WRONG_PASSWORD:
print("STAT_WRONG_PASSWORD – failed due to incorrect password")
elif s == network.STAT_NO_AP_FOUND:
print("STAT_NO_AP_FOUND – failed because no access point replied")
elif s == network.STAT_CONNECT_FAIL:
print("STAT_CONNECT_FAIL – failed due to other problems")
elif s == network.STAT_GOT_IP:
print("STAT_GOT_IP – connection successful")
else:
print("- unknown status!!!")
print("------------------------------")
print("=========================================================")
print(sys.implementation[0], os.uname()[3],
"\nrun on", os.uname()[4])
print("=========================================================")
print()
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
understandWLAN(wlan)
wlan.connect(ssid, password)
while not wlan.isconnected():
print("Waiting to connect:", end='*\r')
time.sleep(0.5)
print("Waiting to connect:", end='-\r')
time.sleep(0.5)
print("wlan connected")
understandWLAN(wlan)
print(wlan.ifconfig())
print("my IP:", wlan.ifconfig()[0])
ai = socket.getaddrinfo(serverAddr, serverPort)
addr = ai[0][-1]
s = socket.socket()
try:
s.connect(addr)
s.send(b"\nHello from Pico W at " + wlan.ifconfig()[0])
while True:
rx = s.recv(512)
print(rx)
except:
print("Somethong wrong")
understandWLAN(wlan)
s.close()
wlan.disconnect()
while True:
pass
mpyPicoW_SocketClient_ST7735.py
"""
Raspberry Pi Pico W/MicroPython exercise:
A simple socket client connect to HC-25
display on 0.96" 80x160 (RGB) IPS with ST7735S SPI Driver
ref:
Raspberry Pi Pico W official book:
Connecting to the Internet with Raspberry Pi Pico W
"""
import sys
import os
import time
import network
import socket
from myST7735 import TFT
from sysfont import sysfont
from machine import SPI
ssid = 'myHC-25'
password = 'password'
serverAddr = "192.168.4.1"
serverPort = 8080
# To know WLAN status
# It's helpflul in learning and debugging
def understandWLAN(wwlan):
print("------------------------------")
print("Information to understand wlan")
print(wwlan)
#print(dir(wwlan))
print("active(): ", wwlan.active())
print("isconnected(): ", wwlan.isconnected())
s = wwlan.status()
print("status() =", s)
if s == network.STAT_IDLE:
print("STAT_IDLE – no connection and no activity")
elif s == network.STAT_CONNECTING:
print("STAT_CONNECTING – connecting in progress")
elif s == network.STAT_WRONG_PASSWORD:
print("STAT_WRONG_PASSWORD – failed due to incorrect password")
elif s == network.STAT_NO_AP_FOUND:
print("STAT_NO_AP_FOUND – failed because no access point replied")
elif s == network.STAT_CONNECT_FAIL:
print("STAT_CONNECT_FAIL – failed due to other problems")
elif s == network.STAT_GOT_IP:
print("STAT_GOT_IP – connection successful")
else:
print("- unknown status!!!")
print("------------------------------")
print("=========================================================")
print(sys.implementation[0], os.uname()[3],
"\nrun on", os.uname()[4])
print("=========================================================")
#=== prepare ST7735 TFT
#spi = SPI(2, baudrate=20000000, polarity=0, phase=0, sck=Pin(14), mosi=Pin(13), miso=Pin(12))
spi = SPI(1, baudrate=20000000, polarity=0, phase=0)
pin_DC = 14
pin_RESET = 13
pin_CS = 15
#tft=TFT(spi,16,17,18)
tft=TFT(spi, pin_DC, pin_RESET, pin_CS)
tft.initr()
tft.rgb(False)
tft.invertcolor(True)
#===
tft.rotation(1)
tft.setStart(1, 26)
tft.fill(TFT.BLACK)
tft.text((10, 10),
"Raspberry Pi Pico W TCP Client",
TFT.BLUE,
sysfont, 2,
nowrap=False)
time.sleep(1)
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
understandWLAN(wlan)
wlan.connect(ssid, password)
while not wlan.isconnected():
print("Waiting to connect:", end='*\r')
time.sleep(0.5)
print("Waiting to connect:", end='-\r')
time.sleep(0.5)
print()
print("wlan connected")
understandWLAN(wlan)
print(wlan.ifconfig())
print("my IP:", wlan.ifconfig()[0])
ai = socket.getaddrinfo(serverAddr, serverPort)
addr = ai[0][-1]
s = socket.socket()
try:
s.connect(addr)
print("socket connected:", s)
s.send(b"\nHello from Pico W at " + wlan.ifconfig()[0])
while True:
rx = s.recv(512)
print(rx)
tft.fill(TFT.BLACK)
tft.text((10, 10),
rx.decode(),
TFT.WHITE,
sysfont, 2,
nowrap=False)
except:
print("Somethong wrong")
tft.fill(TFT.BLACK)
tft.text((10, 10),
"Somethong wrong",
TFT.RED,
sysfont, 2,
nowrap=False)
s.close()
wlan.disconnect()
while True:
pass
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