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Added Controls over MQTT Protocol and Added Required Micropython File…
…s for ESP32
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| import network | ||
| import ure | ||
| import time | ||
| from machine import Pin, PWM | ||
| import ubinascii | ||
| import machine | ||
| import micropython | ||
| import umqtt_simple | ||
| from umqtt.simple import MQTTClient | ||
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| #connecting to hotspot | ||
| ssid = "whotspot" | ||
| ssid_password = "manumanu" | ||
| wlan = network.WLAN(network.STA_IF) | ||
| wlan.active(True) | ||
| wlan.connect(ssid,ssid_password) | ||
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| # Direction Pin of Motor1 assuming value=1 as forward | ||
| m1_dir = Pin(2, Pin.OUT, value=1) | ||
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| # MQTT Broker IP | ||
| server="192.168.137.160" | ||
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| # Received messages from subscriptions will be delivered to this callback | ||
| def sub_cb(topic, msg): | ||
| #print((topic, msg)) | ||
| msgDecoded=msg.decode("utf-8") #Converts Byte Data into UTF-8 Strings | ||
| #Using Micropython RegEXP lib to seperate data | ||
| #where data[0] denotes Direction and data[1] denotes Speed | ||
| sep = ure.compile("-") # Delimiter is "-" | ||
| data = sep.split(msgDecoded) | ||
| print("Direction:",data[0],"\t Speed:",data[1],"\t State:",data[2]) | ||
| if data[0] == "w": | ||
| #m1_dir.value(1) | ||
| motor(1,int(data[1]),int(data[2])) | ||
| elif data[0] == "s": | ||
| #m1_dir.value(0) | ||
| motor(0,int(data[1]),int(data[2])) | ||
| else: | ||
| #m1_dir.value(0) | ||
| motor(0,0) #Frequency Becomes zero so motor stops | ||
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| def pircontrol(server="192.168.137.160"): | ||
| c = MQTTClient("esp32_pir_mqttClient", server) | ||
| c.set_callback(sub_cb) | ||
| c.connect() | ||
| c.subscribe(b"esp32/control") | ||
| while True: | ||
| if True: | ||
| # Blocking wait for message | ||
| c.wait_msg() | ||
| else: | ||
| # Non-blocking wait for message | ||
| x=c.check_msg() | ||
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| # Then need to sleep to avoid 100% CPU usage (in a real | ||
| # app other useful actions would be performed instead) | ||
| time.sleep(1) | ||
| c.disconnect() | ||
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| def motor(dir,speed,state,duty_cycle=750): | ||
| stepper1 = PWM(Pin(2), freq=speed, duty=duty_cycle) | ||
| if state==0: | ||
| stepper1.deinit() | ||
| else: | ||
| stepper1 = PWM(Pin(2), freq=speed, duty=duty_cycle) | ||
| direction1 = Pin(4, Pin.OUT, value=dir) | ||
| # if speed==0: | ||
| # stepper1.deinit() | ||
| # direction2 = Pin(4, Pin.OUT, value=dir) | ||
| # direction3 = Pin(4, Pin.OUT, value=dir) | ||
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| if __name__ == "__main__": | ||
| pircontrol() |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| def connect(ssid=None,ssid_password=None): | ||
| import network | ||
| if ssid is None: | ||
| ssid = "whotspot" | ||
| print('Error!!: Invalid Credentials Provided') | ||
| print('Using Default SSID') | ||
| if ssid_password is None: | ||
| ssid_password = "manumanu" | ||
| print('Using Default WIFI Authentication Password...') | ||
| wlan = network.WLAN(network.STA_IF) | ||
| wlan.active(True) | ||
| if not wlan.isconnected(): | ||
| print('Connecting to network...') | ||
| wlan.connect(ssid,ssid_password) | ||
| while not wlan.isconnected(): | ||
| pass | ||
| print("\n****Connection Successful****") | ||
| print('Network config:', wlan.ifconfig()) | ||
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| def disconnect(): | ||
| import network | ||
| print('Disconnecting...') | ||
| wlan = network.WLAN(network.STA_IF) | ||
| if not wlan.isconnected(): | ||
| print('Warning: Already Disconnected!') | ||
| else: | ||
| wlan.disconnect() | ||
| print('\n****Disconnected Successfully****') | ||
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| #def update(pkg=None): | ||
| # import network, upip | ||
| # if not network.WLAN(network.STA_IF).isconnected(): | ||
| # print('Error!!: Connect to Internet') | ||
| # else: | ||
| # if pkg is None: | ||
| # pkg=["micropython-uasyncio","micropython-pkg_resources","picoweb","utemplate","micropython-ulogging"] | ||
| # print("Warning!:No Library name provided.") | ||
| # i=0 | ||
| # while i<len(pkg): | ||
| # print("\n"+"Updating Default Library: "+pkg[i]) | ||
| # upip.install(pkg[i]) | ||
| # i+=1 | ||
| # print("\n****Library update successful****") | ||
| # else: | ||
| # print("Updating Library: "+pkg) | ||
| # upip.install(pkg) | ||
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