TechnoReview85

Hello guys In this article I am going to tell you how you can make an easy smartphone-controlled Home Automation system. It is a very easy way to build this project. You need hardware to make:-  Arduino Uno HC -05 Bluetooth Module Single-Channel Relay module AC bulb, Wire, Plug 9-volt battery Or AC to DC power supply You need software to Run:- Arduino IDE ( for upload code to Arduino UNO) Project  code ( Download Arduino code from here ) Remote XY library ( you have to install remote xy library in Arduino IDE) Download Remote Xy android app from play store Connection Arduino Digital pin 3 to HC 05 Bluetooth module RX Arduino Digital pin 2 to HC 05 Bluetooth module TX Arduino  5v to HC 05 Bluetooth module VCC Arduino  gnd to HC 05 Bluetooth module gnd Arduino Digital pin 13 to Relay module signal in pin Arduino vin to Relay module vcc pin Arduino gnd to Relay module gnd pin Important :- Dont touch the circuit ...

In this post, I am going to describe  how to make a very small spy camera with new low price development board ESP-32 cam. This cam module has a powerful esp32 chip, A micro SD card slot & a 2 MP camera. and you can program it using Arduino IDE How it works - When gpio 13 connect to gnd the camera module will take a photo & save it to Micro sd card. You need to make -  ESP32 cam module Small Vero board  Push Switch  Micro On-Off switch 10 K resistor 3.7 volt rechargeable battery Male / Female header pins  wire SD card A small box ( optional )  Circuit Diagram of this project After completed the connections upload the code to ESP32 cam using arduino IDE Download code from here  It may help you     How to program ESP 32 Cam module  

It is a guide for making mini CNC plotter using old DVD drive stepper motor this machine can print up-to 40mm X 40mm I used here arduino nano & 2 piece  L293 dual motor driver IC as stepper motor driver The Pen mechanism of mini cnc collected also from old DVD driver (drawer part) For graphical user interface I have used a simple free Chrome extension named "Gcode sender" Download Gcode sender from here You need hardware  Old Dvd drive - 2piece ply wood 6X8 inch - 2piece Arduino nano 9g micro servo motor  vero board IC L293D - 2piece Male , Female header pins Terminal block LED 220 ohm resistor wire   Nut & screw   Assembling Hardware  First take out stepper motor from old DVD This video can help you  Mark on plywood for fit stepper motor mechanism & drill on mark. joint two ply wood like "L" using small piece of metal clamp  solder 4 wire on stepper motor connector points...

It is a tutorial about Iot based home automation using Blynk How it works : Here I make a customized circuit board to control 4 relays by esp8266 NodeMcu This circuit runs on DC 12 volt 1 amp power. when power on nodemcu connect to you router via WiFi & also connect with Blynk server Your smart phone send command to Blynk server & Blynk cloud server send command to nodemcu . The D0,D2,D3,D4 pin of nodemcu became high or low then relay turn on or off connected Ac appliances. You Need to make : Customized pcb ( I make pcb from  https://jlcpcb.com  They offer 10 PCBs in $2 Download gerber file from here & upload to jlcpcb website .build time 48 hours ) Esp 8266 NodeMcu Lolin 12v 1 amp power adapter Ic 7805 - 1 pcs Transistor Bc 548b - 4 pcs Resistors 10K - 4 pcs & 1K - 5pcs Diode IN4007 - 4pcs Relay 12V - 4pcs Led red - 1pcs & green - 4 pcs Capacitor 470uf/25V - 1pcs Female Header connector Terminal block - 4pcs ...

In this post I want to describe How to connect all parts like brushed motor, throttle brake light, ignition switch via controller It is very easy to wiring e bike parts About Parts you need to make  & all details about electric bi - cycle Click here  You have to use a motor controller ( in my bike I used 24 volt controller) There are lots of wires coming out form the controller .we have to connect those wires to motor,battery,throttle,break ( optional) & ignition switch It is full wiring diagram of ebike Some important  Use 4mm wire to connect battery To use LED as indicator must use a resistor with LED For ignition switch you can use Mofet ignition switch Use good quality parts & wire If you do not have much knowledge about electronics , then take a professional help For details of new version electric bicycle click here

How to Make Electric Bike at Home ( Techno Review 85) I  have made an electric bicycle with speedometer from the brushed motor it can run 30 -25 km/charge & speed about 25km/h Let's start---  Basic needs - 1 ) 24 v DC Geared motor (MY1016Z) 2) controller 24v 3) Throttle 24v 4) battery 12v X2 (14 amp) 5) Dual freewheel ( I make it own) 6) chain 7) wire 8) a bicycle etc---                                            24 v motor,controller & thortole  Making videos on youtube                                 P art 1                                   Part 2                           ...

using  this easy circuit you can use any IR remote like TV,DVD player to turn on & off Parts List - IC - CD 4017 IC - 7805 ( 5v regulator) transistor - BC 548 B                   BC 558 capacitor - 1000 mfd /16 v                    100 mfd /16v                       0.1um resistor - 330 ohom x2                1k,33ohm,220k IR sensor TSOP 1738 or TSOP 1838 Diode   -  1N4007 Realy 6v vero board,wire, Circuit Diagram --   Pin out of transistor ,IC, Relay & IR sensor                                                      You tube video ---

It is a password protected door lock project using arduino Press # for clear then press the password ( in my case it is 1234) and press * (star) for confirm. now servo motor on and door lock will open .after 5 sec it will automatically close. Parts need- arduino uno 4x4 Matrix  keyboard servo motor jumper wire power bank or battery for power supply bread board normal door lock resistor 220 ohms Connection - key pad pin            Arduino digital pin           1             to              9         2             to              8       3             to              7       4             to           ...

It is a basic Arduino robot project with simple code Parts list- L293D Motor driver module HC hr 04 ultrasonic module Arduino uno Jumper wire usb cable ( for power supply from power bank) Power bank 2WD robot chassis ------------------------------------------------------------------ You can make chassis from this video Connections- Hc 04 tring pin connect  to Arduino digital pin - 12 Hc 04 echo pin connect  to Arduino digital pin - 11 L293d motor driver input for left motor connect to Arduino digital pin 2 &3 L293d motor driver input for right motor connect to Arduino digital pin 4 &5   the power source of the project  is 5v from the power bank Download Arduino  code here  after downloading open it with Arduino Ide and upload to Arduino uno board Project Video-

It is simple arduino  thermometer project You Need-- Arduino UNO or any other arduino board Nokia 5100 LCD Module Analog Temperature sensor LM-35 Jumper wires Bread board or vero board battery here I use nokia  pcd 8544 - 1.4.3 library ( download library ) after add library You can get code in sample of 8544 library                                                Schematic of this project