Stap 5: Aanroepen vanuit Python
Zoals in het intro, kunt u de server ook aanroepen vanuit Python en andere talen.
De Python voorbeeld wilt uitvoeren, moet u het maken van de "DEVICE_URL" wijzigen voordat u de query uitvoert. U moet ook het pakket aanvragen .
# ESP8266 http io server test. # # Goal in life: # Tests exposed basic wiring functions: pinMode, digitalRead, digitalWrite, # analogRead and analogWrite from the ESP8266 http server. # # Written By - Scott Beasley 2016. # Public domain. Free to use or change. Enjoy :) # # requests info found here: <a href="http://docs.python-requests.org/en/latest/user/install/#install"> http://docs.python-requests.org/en/latest/user/in...> import requests import time DEVICE_URL = 'http://192.168.2.8' # IP of your ESP (Copied from the serial monitor) def digitalWrite (pin, state): r = requests.get (DEVICE_URL+'/digitalWrite', params=pin+','+state, stream=False, headers={'Connection':'close','keep_alive': 'False'}) ret_json = r.json ( ) r.connection.close() return_val = ret_json['return_code'] return int(return_val) def digitalRead (pin): r = requests.get (DEVICE_URL+'/digitalRead', params=pin, stream=False, headers={'Connection':'close','keep_alive': 'False'}) ret_json = r.json ( ) return_val = ret_json['data_value'] return return_val def pinMode (pin, state): r = requests.get (DEVICE_URL+'/pinMode', params=pin+','+state, stream=False, headers={'Connection':'close','keep_alive': 'False'}) ret_json = r.json ( ) r.connection.close() return_val = ret_json['return_code'] return int(return_val) def analogWrite (pin, state): r = requests.get (DEVICE_URL+'/analogWrite', params=pin+','+state, stream=False, headers={'Connection':'close','keep_alive': 'False'}) ret_json = r.json ( ) r.connection.close() return_val = ret_json['return_code'] return int(return_val) def analogRead (pin): r = requests.get (DEVICE_URL+'/analogRead', params=pin, stream=False, headers={'Connection':'close','keep_alive': 'False'}) ret_json = r.json ( ) return_val = ret_json['data_value'] return int(return_val) def main ( ): pinMode ("3", "INPUT_PULLUP") pinMode ("16", "OUTPUT") # on NODEMCU has an LED on it while 1: digitalWrite ("16", "LOW") time.sleep (1) digitalWrite ("16", "HIGH") print "A0 = " + str (analogRead ("0")) print "D3 = " + digitalRead ("3") end if __name__ == "__main__": main ( )
