This module provides network drivers and routing configuration. Network
drivers for specific hardware are available within this module and are
used to configure a hardware network interface. Configured interfaces
are then available for use via the
socket module. To use this module
the network build of firmware must be installed.
# configure a specific network interface # see below for examples of specific drivers import network nic = network.Driver(...) print(nic.ifconfig()) # now use socket as usual import socket addr = socket.getaddrinfo('micropython.org', 80)[-1] s = socket.socket() s.connect(addr) s.send(b'GET / HTTP/1.1\r\nHost: micropython.org\r\n\r\n') data = s.recv(1000) s.close()
Get or set the PHY mode.
modeparameter is provided, sets the mode to its value. If the function is called wihout parameters, returns the current mode.
- The possible modes are defined as constants:
MODE_11B– IEEE 802.11b,
MODE_11G– IEEE 802.11g,
MODE_11N– IEEE 802.11n.
This class provides a driver for WiFi network processor in the ESP8266. Example usage:
import network # enable station interface and connect to WiFi access point nic = network.WLAN(network.STA_IF) nic.active(True) nic.connect('your-ssid', 'your-password') # now use sockets as usual
Create a WLAN network interface object. Supported interfaces are
network.STA_IF (station aka client, connects to upstream WiFi access
network.AP_IF (access point, allows other WiFi clients to
connect). Availability of the methods below depends on interface type.
For example, only STA interface may
connect() to an access point.
Activate (“up”) or deactivate (“down”) network interface, if boolean argument is passed. Otherwise, query current state if no argument is provided. Most other methods require active interface.
Connect to the specified wireless network, using the specified password.
Disconnect from the currently connected wireless network.
Scan for the available wireless networks.
Scanning is only possible on STA interface. Returns list of tuples with the information about WiFi access points:(ssid, bssid, channel, RSSI, authmode, hidden)
bssid is hardware address of an access point, in binary form, returned as bytes object. You can use
ubinascii.hexlify()to convert it to ASCII form.
There are five values for authmode:
- 0 – open
- 1 – WEP
- 2 – WPA-PSK
- 3 – WPA2-PSK
- 4 – WPA/WPA2-PSK
and two for hidden:
- 0 – visible
- 1 – hidden
Return the current status of the wireless connection.
The possible statuses are defined as constants:
STAT_IDLE– no connection and no activity,
STAT_CONNECTING– connecting in progress,
STAT_WRONG_PASSWORD– failed due to incorrect password,
STAT_NO_AP_FOUND– failed because no access point replied,
STAT_CONNECT_FAIL– failed due to other problems,
STAT_GOT_IP– connection susccessful.
In case of STA mode, returns
Trueif connected to a wifi access point and has a valid IP address. In AP mode returns
Truewhen a station is connected. Returns
ifconfig([(ip, subnet, gateway, dns)])¶
Get/set IP-level network interface paremeters: IP address, subnet mask, gateway and DNS server. When called with no arguments, this method returns a 4-tuple with the above information. To set the above values, pass a 4-tuple with the required information. For example:
nic.ifconfig(('192.168.0.4', '255.255.255.0', '192.168.0.1', '18.104.22.168'))
Get or set general network interface parameters. These methods allow to work with additional parameters beyond standard IP configuration (as dealt with by
wlan.ifconfig()). These include network-specific and hardware-specific parameters. For setting parameters, keyword argument syntax should be used, multiple parameters can be set at once. For querying, paremeters name should be quoted as a string, and only one paramter can be queries at time:
# Set WiFi access point name (formally known as ESSID) and WiFi channel ap.config(essid='My AP', channel=11) # Queey params one by one print(ap.config('essid')) print(ap.config('channel'))
Following are commonly supported parameters (availability of a specific parameter depends on network technology type, driver, and MicroPython port).
Parameter Description mac MAC address (bytes) essid WiFi access point name (string) channel WiFi channel (integer) hidden Whether ESSID is hidden (boolean) authmode Authentication mode supported (enumeration, see module constants) password Access password (string)