Step 1. Hardware connections
Step 3: Bolt python library setup
Next, we have to write code for street light automation

Published May 5, 2020 © GPL3+

Automatic Street Light Controller with Alarm using Bolt Iot

Street lights can be automatically controlled based on the sensor value and also alarm clock to wake up in the morning

IntermediateFull instructions provided2 hours1,368

Automatic Street Light Controller with Alarm using Bolt Iot

Things used in this project

Hardware components

Bolt IoT Bolt WiFi Module

Buzzer

LED (generic)

LDR, 5 Mohm

USB-A to Micro-USB Cable

Jumper wires (generic)

Resistor 1k ohm

Software apps and online services

Bolt IoT Bolt Cloud

Snappy Ubuntu Core

Twilio SMS Messaging API

Story

Street light controller projects are already made by others so, I have taken that main concept and added alarm clock to the project.

In order to save the electricity and also time to on and off of street lights this project will be helpful.

In this project, based on the light intensity value which will be sensed by LDR sensor street light are controlled automatically and the alarm will be on when the street lights are off. This will be helpful for the people to wake up in the early morning to expose to sunlight which is the best source to get vitamin D as soon as sun rises. the message will be sent to the respective person when the lights are off or on.

Step 1. Hardware connections

step 1: connect one leg of LDR sensor into bolt module's 3V3 pin

step2: connect another leg of LDR sensor to A0 pin

step3: connect 1K ohm resistor one lead to A0 and another to GND pin

step 4: connect +ve leg of LED to (GPIO)1 pin and -ve to GND pin

step 5: connect +ve leg of buzzer to (GPIO) 2 pin and -ve to Gnd pin

step 6: connect the bolt module to power supply and check the module is online using bolt cloud.

Step 2.software configuration

In vmware workstation on ubuntu server write the python code for automatic street light controller

Download the virtual box and ubuntu server on PC(windows) by referring to below video

Step 3: Bolt python library setup

To setup bolt python library to interact with bolt cloud API using our python application

first login to ubuntu server and follow the below steps

Step 1: update the packages on ubuntu by giving the below command

sudo apt-get -y update

Step 2: install python3 pip3 using following command

sudo app install python3-pip

Step 3: installing boltiot library using pip using this command

sudo pip3 install boltiot

by this we are done with boltiot python library installation

Step 4 : from the bolt cloud app get the Api key and the Device id

click on API to get Api key

now to get device id click on device in bolt cloud

Step 5: Creating account on Twilio

Twilio is used to make and receive phone calls and also send and recieve the text messages using its web service APIs

Refer the following video to create account on Twilio and to find Sid number and from Number

Next step, we have write configuration file which contains following information

By typing the command,

sudo nano conf.py

code in python file

SID = 'You can find SID in your Twilio Dashboard' 
AUTH_TOKEN = 'You can find  on your Twilio Dashboard' 
FROM_NUMBER = 'This is the no. generated by Twilio. You can find this on your Twilio Dashboard'
TO_NUMBER = 'This is your number. Make sure you are adding +91 in beginning'
API_KEY = 'This is your Bolt Cloud account API key'
DEVICE_ID = 'This is the ID of your Bolt device'

Next, we have to write code for street light automation

by typing the command

sudo nano street_light.py

Algorithm for code:

1. Fetch the latest sensor value from the bolt device

2. Check the value is between the minimum and maximum limits

3. If not in the range, then switch of the led and buzzer is on otherwise, switch on the led buzzer is off and sms will be send

4. wait for 10 seconds

5. repeat the above steps

program for automation in python

Save the file using ctrl+X and Y

Next run the program using the command

sudo python3 street_light.py

import conf,json,time
from boltiot import Sms, Bolt

minimum_limit = 0
maximum_limit = 400 


mybolt = Bolt(conf.API_KEY, conf.DEVICE_ID)
sms = Sms(conf.SID, conf.AUTH_TOKEN, conf.TO_NUMBER, conf.FROM_NUMBER)


while True: 
    print ("Reading sensor value")
    response = mybolt.analogRead('A0') 
    data = json.loads(response) 
    print("Sensor value is: " + str(data['value']))
    try: 
        sensor_value = int(data['value']) 
        if sensor_value < maximum_limit or sensor_value > minimum_limit:
            print(mybolt.digitalWrite('1','HIGH'))
            print(mybolt.analogWrite('2','0'))
            print("Making request to Twilio to send a SMS")
            response = sms.send_sms("The Current temperature sensor value is " +str(sensor_value))
            print("lights are turned on")
            print("Status of SMS at Twilio is :" + str(response.status))
        else:
            print(mybolt.digitalWrite('1','LOW'))
            print(mybolt.analogWrite('2','100'))
            print("Making request to Twilio to send a SMS")
            response = sms.send_sms("The Current temperature sensor value is " +str(sensor_value))
            print("lights are turned off")
            print("Status of SMS at Twilio is :" + str(response.status))
    except Exception as e: 
        print ("Error occured: Below are the details")
        print (e)
    time.sleep(10)

Credits

Bhoomika S

1 project • 1 follower

Automatic Street Light Controller with Alarm using Bolt Iot

Things used in this project

Hardware components

Software apps and online services

Story

Step 1. Hardware connections

Step 3: Bolt python library setup

Next, we have to write code for street light automation

Code

street_light.py

conf.py

Credits

Bhoomika S

Comments

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Automatic Street Light Controller with Alarm using Bolt Iot

Automatic Street Light Controller with Alarm using Bolt Iot

Things used in this project

Hardware components

Software apps and online services

Story

Step 1. Hardware connections

Step 3: Bolt python library setup

Next, we have to write code for street light automation

Code

street_light.py

conf.py

Credits

Bhoomika S

Comments

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