# Web server with MicroPython
###### tags: `python` `web` `boards` `raspberry`
## ESP32
### Import machine
```python!
#set pin2 output(defalut led
led = machine.Pin(2,machine.Pin.OUT)
led.off()
```
### configure the wife
```pytho=
import network
import time
networkName = 'zsystem'
networkPassword = 'zang670623'
station = network.WLAN(network.STA_IF)
station.active(True)
station.connect(networkName, networkPassword)
while station.isconnected() == False:
print("Wait to connect")
time.sleep(2)
print('connect successful')
print(station.ifconfig())
```
### Configure the socket
```python=
import socket
socket = socket.socket(socket.AF_INET,socket.SOCK.STREAM)
socket.bind(("",80)) #listen to port 80 on any address
socket.listen(10) #set max of socket connections
```
socket.AF_INET use IP address 4
socket.SOCK.STREAM use TCP protocol
socket.SOCK.DGRAM use UDP protocol
### Web socket
Use web socket to communicate with the clients
### Establish server
```python!
server = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server.bind((LHOST,LPORT))
server.listen(10)
```
### Get client information
```python=
#client information
socketClient, address =server.accept()
print(f'[*] Connection form {address[0]}:{address[1]} has been edstablished !!!!')
#get request
request=socketClient.recv(1024)
print(request.decode())
```
## Code
```python=
#set pin
import machine
led = machine.Pin(2,machine.Pin.OUT)
led.off()
#Configure the wife
import network
import time
networkName = 'zsystem'
networkPassword = 'zang670623'
station = network.WLAN(network.STA_IF)
station.active(True)
station.connect(networkName, networkPassword)
while station.isconnected() == False:
print("Wait to connect")
time.sleep(2)
print('connect successful')
print(station.ifconfig())
#configure the socket
import socket
LHOST =''
LPORT =80
server = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server.bind((LHOST,LPORT))
server.listen(10)
def webPage():
if led.value()==1:
ledState="on"
print('ledState is on')
elif led.value()==0:
ledState="off"
print('ledState is off')
webSite= """
<html>
<head>
<meta content="width=device-width, initial-scale=1" name="viewport"></meta>
</head>
<body>
<center><h2>ESP32 Web Server in MicroPython </h2></center>
<center>
<form>
<button name="led" type="submit" value="on"> LED ON </button>
<button name="led" type="submit" value="off"> LED OFF </button>
</form>
</center>
<center><p>LED is now <strong>""" + ledState + """</strong>.</p></center>
</body>
</html>"""
return webSite
while True:
#client information
socketClient, address =server.accept()
print(f'[*] Connection form {address[0]}:{address[1]} has been edstablished !!!!')
#get request
request=socketClient.recv(1024)
print(request.decode())
request = str(request)
ledUp = request.find('/?led=on')
ledDown = request.find('/?led=off')
if ledUp == 6 and led.value() == 0:
print('led on')
print(str(ledUp))
led.value(1)
print("meow")
elif ledDown == 6 and led.value() == 1:
print('led off')
print(str(ledDown))
led.value(0)
print("meow")
response = webPage()
#socketClient send()
socketClient.send('HTTP/1.1 200 ok\n')
socketClient.send('Content-Type: text/html\n')
socketClient.send('Connection: close\n\n')
socketClient.sendall(response)
```
Result
led off
![Uploading file..._bdaivm675]()
led on
![Uploading file..._ncjh1zdcb]()
Occur problem
When I try to continually click the button which one of both, the boards will disconnect XD
---
## Raspberry
[MicroWebSrv](https://github.com/jczic/MicroWebSrv2)
[Reference Document](https://www.rototron.info/raspberry-pi-esp32-micropython-web-server-tutorial/)
IDE connects to the board
Putty connects to the directory of raspberry
![Uploading file..._9iqc92fwl]()
Import the library
Use pip packet manager
```bash!
pip install network
```
Read-Eval-Print Loop**，簡稱**REPL**
```bash=
pip install repl
```
Update packet Manager
```bash=
sudo apt update
```
Install the Apache
```bash=
sudo apt install apache2 -y
```
Get border IP address
Cmd
>ifconfig
>ip address
>hostname -i
And we could know we connect successfully
## Edit web file
WebDefaultPath: /var/www/html
---
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