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ESP8266 Relay controller using MicroPython
import machine
import socket
import ure
RELAYS = [machine.Pin(i, machine.Pin.OUT) for i in (12, 13, 14, 15)]
def getPinStatus():
return RELAYS
def setPin(pin, value):
RELAYS[int(pin)].value(int(value))
return "PIN %s set to %s" % (pin, value)
def parseURL(url):
#PARSE THE URL AND RETURN THE PATH AND GET PARAMETERS
parameters = {}
path = ure.search("(.*?)(\?|$)", url)
while True:
vars = ure.search("(([a-z0-9]+)=([a-z0-8.]*))&?", url)
if vars:
parameters[vars.group(2)] = vars.group(3)
url = url.replace(vars.group(0), '')
else:
break
return path.group(1), parameters
def buildResponse(response):
# BUILD DE HTTP RESPONSE HEADERS
return '''HTTP/1.0 200 OK\r\nContent-type: text/html\r\nContent-length: %d\r\n\r\n%s''' % (len(response), response)
addr = socket.getaddrinfo('0.0.0.0', 80)[0][-1]
s = socket.socket()
s.bind(addr)
s.listen(1)
print('listening on', addr)
while True:
cl, addr = s.accept()
print('client connected from', addr)
request = str(cl.recv(1024))
print("REQUEST: ", request)
obj = ure.search("GET (.*?) HTTP\/1\.1", request)
print(obj.group(1))
if not obj:
cl.send(buildResponse("INVALID REQUEST"))
else:
path, parameters = parseURL(obj.group(1))
if path.startswith("/getPinStatus"):
cl.send(buildResponse("RELAY STATUS:\n%s" % "\n".join([str(x.value()) for x in getPinStatus()])))
elif path.startswith("/setPinStatus"):
pin = parameters.get("pin", None)
value= parameters.get("value", None)
cl.send(buildResponse("SET RELAY:\n%s" % setPin(pin, value)))
else:
cl.send(buildResponse("UNREGISTERED ACTION\r\nPATH: %s\r\nPARAMETERS: %s" % (path, parameters)))
cl.close()
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