Turbidity meter

download code from here

Bi directional counter using arduino and lcd

circuit diagram

download code from here

How to make 2*2*2 LEDCUBE using arduino

Circuit diagram

download code from here

Video tutorial

MOTION DETECTION ALARM

Hello, friends in the tutorial I am going to show you how to make a motion detection alarm. the main component of this project is the PIR sensor

. 

overview of PIR SENSOR

 the main component e of this project is a PIR sensor. PIR stands  for passive infrared

This module consists of a pyroelectric sensor. As the name & indicates that is pyro means temperature, this sensor produces some energy when it is exposed to heat!

and the term passive means it generates signals without using the energy

it has a lens called fresnel lens and which is used to focus the signal to the sensor.

This module has 3 pins Vcc gnd and out and two potentiometers Right One is used to adjust the output delay time and left one is used to adjust the Sensing range of module

working principle

if a human or heated body comes in front of the sensor. the Sensor will detect movement  because the  heated body emits energy in the form of IR radiation and the PIR will capture that

working modes

this module has two modes.

the repeatable and non-repeatable mode .

in the non-repeatable mode when the sensor output is high and it goes low after the delay time is over.

But in repeatable mode. It will keep the output high until the detected Object is in the range 

CIRCUIT DIAGRAM

HOW TO UPLOAD PROGRAM TO ESP-01 USING ARDUINO

In this tutorial, I am going to show how to program ESP8266 - 01 using Arduino board

first, open Arduino ide

1.go to preferences

paste this link there http://arduino.esp8266.com/package_esp8266com_index.json

this will add esp01 information to Arduino ide

2.then go to tools-boards-board manager

then install esp8266now go-to tools- boards

3.now go-to tools- boards select generic esp8266 board

circuit diagram

Connection information
  - ESP8266 VCC  - 3.3volt
  - ESP8266 GND  - GND of Arduino
  - ESP8266 CH_PD  - 3.3volt
  - ESP8266 RST ground it for reset
  - ESP8266 GPIO 0  - ground it at the time of uploading program.
    RX, TX Connection for Arduino
  - ESP8266 RX  -  RX of Arduino
  - ESP8266 TX  -  TX of Arduino
   -connect rst to gnd off Arduino

go to files-examples-esp8266-blink

select board and port then upload the sketch to your board this will took upto3 minutes maybe so wait patiently.


after uploading connect(then remove) the reset pin to ground and remove pin0 from ground

then repower the board u should see blinking led on esp board

HOW TO SOLVE ERROR WHILE UPLOADING CODE TO ARUINO IN LINUX

    

if your monitor shows this error then open terminal and type  

sudo chmod 666 /dev/ttyACM0

then reupload the program

how to animate images using zoetropic app without app logo

download link
zoetropic pro.apk
 video link