RF bases Prepaid Energy Meter
Parts required
89s52/arduino/ AVR/ PIC
crystal 12Mhz
LCD 16×2
433Mhz RF module
HT12E
HT12D
Resistors 10k, 1k
Capacitors 1000mfd, 100mfd, 470mfd
I decided to make a device that was jam packed with sensors and buttons that can do whatever you want it to. It has temperature, humidity, gas, light, sound, motion, and vibration sensors. It also has a speaker and an LED stick for feedback. I 3D printed the enclosure and the clear LED stick. The LED stick can be set to give visual feedback of a sensor’s readings. I currently have it set to display the temperature using different colors for different temperature ranges. My first Command Center is going to be used in a warehouse. My office is upstairs so when people need me, they have to walk up stairs or call me. 4 of the buttons are programmed to text different people in the warehouse with the message”Your assistance is needed in the warehouse.” The other 2 buttons will probably be used to turn lights on and off at the other end of the warehouse. I also get a text if the warehouse gets too hot(The Thermostat is upstairs too) and if the device disconnects from the wifi. I can monitor the condition of the warehouse at all times from anywhere. The buttons on the device can also be triggered from a cell phone using Spark’s tinker app.
Combine a Spark Core with IFTTT(If This Then That) and you can do anything. If This Then That is a service that allows you to perform a wide variety of conditional statements to do pretty much anything. You use it by creating recipes that put the internet to work for you. A Spark Core is an Arduino compatible wifi development board. The company has created an amazing software package and partnered up with IFTTT. This means that you can create IFTTT recipes that monitor variables on your Spark Core and do what ever you want. You can connect it to a WeMo switch. A WeMo switch is a wifi connected outlet. With a Spark Core, a WeMo switch and IFTTT, you can have the outlet turn on or off when a button is pressed or a sensor value has exceeded your set threshold.
Each of the seven sensors can trigger an event when they rise above or fall below a certain set value.
The six buttons on the front panel can be programmed to do anything. One button could text a friend or loved one that you are leaving the house. Another button could post the last picture you took on your phone to Facebook, Instagram or Twitter. You could program each of the buttons to a different WeMo outlet in your house. The possibilities are endless.
One of my favorite parts about using the Spark Core are the Tinker appand their Web IDE(Build). The Tinker App lets you see the status of your Spark Core’s digital and analog pins wherever you are. The Spark Web IDE(Build) lets you flash a program to your device from anywhere in the world. That’s pretty great. I find this particularly useful for the Spark Electron(Cellular Dev Board) that is coming out soon. You could put this IoT Command Center out in a field somewhere with a solar panel and never have to touch it again.
Another option to consider is using an IFTTT recipe with Pushbullet to send all of your devices notifications.
The IoT Command Center can receive external triggers as well as send them. For example, you can have other products and services trigger your device to play a melody or sound an alarm.
If you want to built something completely different of your own, you can still use this instructable with the provided source code and schematic to connect sensors and buttons to your next project.
Step 1: Bill of Materials
1. Spark Core, Spark Photon, or Spark Electron(Cellular) development board. For information on setting your dev board up, visit their Getting Started page.
2. Perf board for soldering the Spark Core to. You could solder directly to the board if you wanted to. You also need some perf board to make a 3.3V power rail and a 5V power rail. I use power rails from a bread board so that I can still easily change or add sensors if needed.
2. 6 Momentary Push Buttons.
3. Temperature/Humidity sensor – You can use a DHT11 or DHT22. I ended up using a DHT22 because it is more accurate. The DHT22 is also a bit larger than the DHT11.
4. Vibration Sensor.
5. PIR Motion Sensor.
6. Piezo Buzzer or Speaker.
7. Gas/Smoke sensor – MQ5 is good for natural gas. There are so many MQ sensors to choose. From Air Quality sensors to alcohol and smoke(MQ3), you can find one to fit your needs.
8. Adafruit Neo Pixel.
9. Eight 10K Resistors.
10. Power Button.
11. Three 4-40 screws.
12. Hot Glue.
13. Enclosure.
Step 2: Build or 3D Print Your Enclosure
There are three files to print. The enclosure front panel, the base, and the LED tunnel. I designed the LED tunnel to fit one of these Adafruit Neopixels. I printed my enclosure with an Ultimaker 2 using Colorfabb Shining Silver for the enclosure and Taulman PLAtinum for the clear led tunnel. There are also enclosures you can buy. Then you can drill the holes and make the cutouts for the buttons and sensors. Also, if you don’t have access to a 3D printer, you can use a service like 3D Hubs to get your enclosure printed for you.
Step 3: Create the Circuit
Use the circuit diagram to plan your circuit out. Prep all of the buttons and sensors using heat shrink tubing where necessary. Cut one end off of a usb cable and strip the black and red wire. We will not need the green and white wire because we can flash our code via wifi.
When the digital pins are set to high, they supply about 3.3V. Certain components and sensors require 5V logic to properly function. In my case, 3.3V was just fine, but if you want to use a component that requires 5V logic, you will need a Logic Level Shifter(SN74AHCT125N) or something similar(see last picture). There are Uni-Directional and Bi-Directional Level Shifters. A Uni-Directional Level Shifter will only shift from one voltage to another. For example, it will shift from voltage A logic to voltage B logic but it will not shift voltage B logic to voltage A logic. A Bi-Directional Level Shifter will shift from voltage A to voltage B and work the other way around. It will also shift voltage B to voltage A.
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Step 4: Assemble Your Command Center
Use hot glue where needed to secure all of your sensors in place. Take care to not use too much hot glue at a time because you can warp your enclosure if it gets too hot. If you are using the hdx vibration sensor, be sure to place it somewhat vertical as my testing found that it had more responsive readings when it was positioned vertically.
Step 5: Tweak Your Code
Now that you have set up the circuit that you want, it’s time to tweak your code. Just copy my code from the txt file into your Spark Build Web IDE. Click flash to upload the code to your Spark Core over wifi. I have broken the code down to publish events when each button is pressed. There is a Spark Variable for each sensor of the 7 sensors. You can create IFTTT recipes to monitor each of these variables and trigger a specific action when the value rises above or falls below a threshold of your choice. Use the tinker app to play around with sensor values to adjust your desired threshold. You can also create IFTTT recipes to listen for the button events and trigger your action when the buttons are pressed. If you are using a DHT11 temperature and humidity sensors instead of the DHT22 that I used, you will have change the 22 to an 11 in the code. You can also view your variable values at any time using Spark’s Rest API.
I will be improving the code over the next few weeks and updating is here.
Final year Mechanical Project List Download
Projects List- we also provide Training on projects/ Project Reports/ Synopsis/ Step by Step Guidance/ Viva Classes/ Technical Specifications/ Drawings/ Simulation
Multipurpose machine
Pneumatic can crusher
Electricity generation using road energy
Air engine- page 1– page 2
Box shofting conveyor production system
Synopsis Continuous variable transmission
synopsis automatic drain cleaner
Synopsis rotating inventory store
fabrication of Air brake system using exhaust gases
Material handling in x y z direction
Manual Roller Bending Machine
Bench Tapping Machine
E Skateboard With Motion Sensing
Motorized Smart Turning Mechanism
Pneumatic Powered Wall Climbing Robot
Coin Based Cola & Soda Vending Machine
Power Generation Using Electromagnetic Suspension
Kneading machine for flour making
Working model of pelton wheel turbine
Pneumatic based zigzag bridge
Separation of metallic and non metallic material
Automatic scrap collecting robot
Coin based soda wending machine
Differential gear assembly
Efficiency of propeller shaft drive over chain drive in two wheeler
Pipe line robot with leakage detection
Object segregation with rejection
Paddle operated Hacksaw
Paddle operated grinder
Paddle operated electricity generation
Pneumatic/Hydraulic based Breaking system
Pneumatic/Hydraulic based Lift Control
Pneumatic/Hydraulic based Punching Machine
Pneumatic/Hydraulic based Conveyor Automation
Pneumatic Grinding machine
Pneumatic Gear shifting system
Pneumatic vehicle tyre air filling system
Automatic Cementing machine using rack and pinion
Bricks making machine
Stair climbing chair with planetary gears
Stair climbing trolley
Stair climbing trolley with planetary gears
stair climbing remote controlled vehicle robot
stair climbing manual remote based vehicle robot
Stair climbing bogie wogie
Car parking with Rack and pinion
Car parking with channels
Car parking Rotating
Car parking wood based Low cost
Car parking round shaped
Circular Gearless Transmission
Multipurpose machine with 5 tools
Scissor Load lift
Automatic drain cleaner
Continous variable Power Transmission
Power Transmission using different Gears
Rotating Inventory store
Paper cutting Geneva mechanism
Horizontal wind turbine
Vertical wind turbine
Patient bed cum chair
Chips making machine
solar operated hack saw
solar based double hacksaw
hacksaw using pneumatic cyllinder
Hacksaw using yoke mechanism
Motorised double hacksaw
portable Hacksaw
Quad hacksaw motorised
Automatic sensor based Hacksaw
pneumatic safety system for Power hacksaw
Abrasive wear testing machine
Seed planter manual
Seed planter remote based
seed planter vehicle and seed feeding motor remote controlled
Seed planter with double row seed planting system
Canal edge control using soil moisture sensing
Solar crop cutter
Remote based Crop cutter
Remote based Solar Grass cutter
Stoke yoke mechanism based Grass Cutter
Headlight steering control – unidirectional controlled
Motorised Grinder
3 D printer
Motorised Durmut
solar based Hammer
Paddle based Hammering
synopsis electromagnetic clutch plate system
See Saw based electricity generation
Gear control bi-directional to uni directional circular movement control mechanism
Foot step electricity generation
Hydraulic actuator based mechanical braking system
Contact less eddy braking system
power generation from vehicle system
Pneumatic based dish wash machine
Pedal based washing machine
Quadric plant automation
Energy Generation from highway traffic
Hydraulic punching machine
Pneumatic rivting machine
Pneumatic railway crossing
Android based window pain moving mechanism
Pedal operated washing machine
Solar power controlled automatic vehicle
Cloth hanging machine
Automatic shoe polisher
Bicycle washing machine
Pneumatic railway crossing
Fork Lifter
Automatic drilling machine
Mini turbine
Mechanical robotic arm
Go cart
Two wheel fork lifter
Portable hammering machine
Solar Grass Cutter
Mini JCB
Fire controlled robot
Patient chair come bed
Electrical Cart
Solar bucket conveyor
Steam Engine
Solar seeker
Hydraulic Bridge
Motorized spider
Pneumatic car jack
Stair climbing robot
One to many nut opener
Water sprinkler
Fatigue testing machine
Hydraulic power plant
Fuel injection system
Hydraulic press
Bicycle grinding machine
Hydraulic brake
Hydraulic jack
Peltier Based Cooling System
Hydraulic punching machine
Solar Recycle
Wire cutting machine
Agriculture robot
Sterling Engine
Stair Climbing trolley
Conveyor Automation
Pneumatic automatic door
Vertical Axis Turbine
Calligraphy Machine
Bottling Plant
Pneumatic Hammer
Smart Dustbin
Head Light Steering
Steam Turbine
Solar Based Washing Machine
Wire Straightening machine
Agriculture robot
Sterling Engine
Stair Climbing trolley
Conveyor Automation
Pneumatic automatic door
Vertical Axis Turbine
Calligraphy Machine
Bottling Plant
Pneumatic Hammer
Smart Dustbin
Head Light Steering
Steam Turbine
Solar Based Washing Machine
Wire Straightening machine
Hydraulic power plant
Mechanical final year projects
Mechanical engineering drawing
Mechanical engineering Trainings
Six weeks Training/ Six months Training
Fuel injection system
Hydraulic press
Bicycle grinding machine
Design and Fabrication Of Gear and Spline Cutting Attachment for Lathe
FABRICATION OF KEYWAY(SLOTTING FIXTURE) ATTACHMENT FOR LATHE
Fabrication of Welding Slag Cleaning Machine- Mechanical Project
Automatic Pneumatic Holder Gripper- Mechanical Project
ELECTROMAGNETIC SHEARING MACHINE MECHANICAL PROJECT
Mechanical Project On Sensor Operated Vice
Flywheel Based Battery Charger Mechanical Project
PNEUMATIC QUICK RETURN MECHANISM FOR SHAPING MACHINE
Design And Fabrication Of Tilting and Angle Vice
FABRICATION OF COCONUT TREE SPRAYER
Paper Cutting And Rewinding Machine Mechanical Project
Hand Operated Can Crusher mechanical project Full report Download
MODIFIED AIR COOLER WITH SPLIT COOLING REPORT DOWNLOAD
Structural analysis of 3D printed structures
Pneumatic surface grinding machine
Cam Operated Hammer, Bending machine
Button Operated Gear Changing System For Two Wheeler
DESIGN OF JIG AND FIXTURE FOR MILLING MACHINE
Design and fabrication of coconut dehusking machine
Design and Fabrication Of Arecanut tree Climber
Design and Fabrication Of Hydraulic Ram Pump
AUTOMATIC GEAR MILLING MACHINE USING PROXIMITY SENSOR
DESIGN AND ANALYSIS OF DIFFERENTIAL GEARBOX
Design and Structural Analysis of Single Plate Friction Clutch
ELECTRO MAGNETIC MOULDING -MECHANICAL PROJECT
HYDRAULIC SPRING STIFFNESS TESTING MACHINE
Design And Fabrication of Six Speed Constant Mesh Gear Box
Pneumatic Sheet Metal Shearing/Cutting Machine report
DESIGN AND FABRICATION OF THE LEAF JIG MECHANICAL PROJECT
Development of working model of solar operated mini Seed driller
FABRICATION OF SUGARCANE BUD CHIPPER-Agricultural Project
DESIGN AND FABRICATION OF MAGLEV WINDMILL
IMPLEMENTATION OF RACK PINION IN WASH BASIN TO SAVE EXCESS OF WATER
DESIGN AND FABRICATION OF PLATE FREEZER
Gas Kit for Two Wheeler Mechanical Mini Project
Design and Analysis of Snap Fit Joints -Mechanical Projects
DESIGN AND FABRICATION ACCIDENT AVOIDING HYDRAULIC JACK
Design and Fabrication Of Briquetting Machine PDF Report Download
Flying On Flapping Wings By using Quick Return Mechanism
Fabrication Of Hydraulic Pipe Clamp Pressing Machine
Design and Fabrication of Pneumatic reciprocating Water Pumping system
AUTOMATIC PNEUMATIC PAPER CUTTING MACHINE
Design and Fabrication Of Agricultural Cutter Using 4 Bar Mechanism
FABRICATION HIGH PRESSURE PNEUMATIC MACHINE VICE
Design and fabrication of pipe inspection robot Report Free Download
Front Wheel Steering System with Movable Headlights Report Download
CROP HARVESTER IN AGRICULTURAL APPROACH PDF Report Download
DESIGN AND FABRICATION OF WORKING MODEL OF ABRASIVE JET MACHINE
EFFICIENCY INCREASING SYSTEM IN AUTOMOBILE
AUTO INDEXING GEAR CUTTING ATTACHMENT FOR PNEUMATIC SHAPING MACHINE
PNEUMATIC SOLENOID OPERATED GRINDING MACHINE 2
Pneumatic Cup Making Machine
HYDRAULIC PIPE BENDING MACHINE MECHANICAL PROJECT
Project On COLD CHAMBER DIE CASTING MACHINE
CNC PNEUMATIC AUTOFEED PUNCHING MACHINE
Swing Electricity Generation System Mechanical Project
Spring Testing Machine Mechanical Project
Automatic Laminating System
Air Craft Auto Pilot Roll Control System
Pedaling Dress Washing Machine
Automatic Conveyor for Industrial Automation
Auto Braking System
Fuzzy Logic Vehicle Parking System
Light Following Robot
Automatic Saw Cutting
Air Engine
Pedal Controlled Mobile Charger cum Emergency Light
Microcontroller Based Vehicle Fare Meter
Yarn Breakage Monitor
Wind Energy Vehicle
Multi Agri Cutter
CAD/CAM/Pro-E/Del CAM based Project List
Automatic Lubrication Unit
Model Highway Road Curve Finder
Air Pollution Monitor
Vehicle Over Speed Control System
Automatic Speed Control in Speed Limit Zone
Automatic Spiral Punching Machine
Tyre Coupling
Automatic Intelligent Hydro Irrigation System
Car Theft Prevention Using Code Locking System
Wire Rope Elevator
Fabrication of Coconut Tree Sprayer
Automatic Coil Winding Machine
Pneumatic Chapathi Machine
Automatic PVC Pipe Cutting Machine
Automatic Punching Machine
Valve Regrinding Machine
Over Speed Indication And Automatic Accident Avoiding System For Four Wheeler
Automatic Petrol Bunk
Check Post Vehicle Analyzer
Electric Power from Industrial Waste Water
Two Wheeler with Propeller Shaft
Anti Theft Wheel Locking System
Emission Controller in Automobiles Using Black Box
Zig Zag Pneumatic Lift
Digitized Vehicle Car Dashboard
VI Based Diesel Plant Automation
Wind Based Water Pump
Sheet Metal Cutting Machine
Spray Painting Robot
Automatic Fuel Tank Filling System
Voice Operated Fuel Injector
Hydraulic Disc Brake
Pneumatic Pick & Placement
Multi Channel Product Measurement and Rejection System
Digital Vehicle Fuel Level Indicator
Fabrication of Hydraulic Power Plant
Fuzzy Logic Vehicle Traffic Regulation
Vehicle Inmobilization System
Vehicle Loan Watching System
Home Power Generation Using Combination of Solar Panel & Wind Mill
Analysis of a Vice-Grip
Solar Automatic Mobile Charging
Vending Machine
Pneumatic High Speed Reciprocting Hack Saw
Hand Operated Pneumatic Robot
Hydraulic Bending and Bend Removing Machine
Automatic Traffic Clearance during Emergency
Advanced Call Taxi Meter
Vehicle Fuel Theft System
Bus Backside Accident Alert System
License Scanning Automobile Security System
Automatic Solar Water Heating System
Salt Water into Pure Water
Remote Controlled Drilling Machine
Fabrication of Wind Mill
Electric Power from Speed Breaker
Industrial Motor Safety Controller
Auto Stop Motion for Spinning Mills
Precision Gear-Cut Setting Attachment through Shaping Machine
Hydraulic Grease Gun
Automatic Thermocole Cutter
Emergency Braking System
Backside Accident Alert System for Four Wheeler
Automatic Packaging Systems
Automatic Poor Quality Rejecter
Duplex Milling Machine
Auto Side Stand Indicator And Center Stand
Car Controlled System Operation
Engine Over Heat Alarm
Automatic Brake Failure Indicator
Automatic Vehicle Smoke Analyser
Automatic Gear Display
CNC Bar Feeding Machine
Conveyer for Quality Control
Frictionless Electromagnetic Braking System
Bombon Bridge
Circular Cutting Machine
Automatic Dimensioning Machine
Automatic Gear Changer
Hydraulic Jack
Dynamic Speed Governor
Coconut Dehusking Machine
Fuel Injection in the Compression Ignition Engine
Magnetic Braking System
Mechanical Four Wheels Steering
Power Transmission in Automobiles
Rotary Drum Vacuum Filter
Traction Control System
Design Of An Auto-Tilting Car
Electricity Generation from Speed Breaker
V Net Fence Weaving Machine
Sterling Engine
Unified Wheel Opener
Robotic Manipulator Arm
Solar Cooler
Vehicle due Immobilization Using PC
Compressed Air Production Using Vehicle Suspension
Mobile Phone Holder for Automobile Steering Wheel
Mileage Projector
Automatic Rain Operated Wiper
HNC Mechatronics Engineering Project Engineering Design Module
Mechatronics Engineering Project Ideas or Topics
Electro Magnetic Clutch
Mechatronics Projects Engineering Students
HNC Engineering Project Ideas or Topics
Design and Fabrication of Domestic Refrigeration Unit
Intelligent Reverse Braking System
Mechatronics/Automation Projects
Film Roll Cutter
All Terrain Vehicle Versatile Mobile Platform
Automobile Surveillance
Robotic Trolley For Material Handling
Robotic Arm
Air Defense Gun
Low Cost Anti-Lock Braking
Speed Vehicle Sensing
Two Stroke Petrol Engine Test Rig
Composite Parabolic Leaf Spring
Hydraulic Escalator
Plate Freezer
Automatic Design Of Wiring Pattern
Huge List of Mechanical and Automobile Projects – Part 2
Auto Turning Fuel Valve
Pneumatic Forging Machine
Steam Power Plant
Single Cylinder Doubleacting Pump
Digital Drips Monitor & Alarm
Automatic Reverse Braking System
Automatic Speed Breaking Systems
Automatic Bottle Filling System
Automatic Pneumatic Bumper
Paint Mixer Machine
Dill based grinding machine
Pneumatic railway crossing
Hydraulic punching machine
Regenerative breaking system
Hydraulic bridge
Solar Recycle
Material handling in x y z direction
Air engine
Wire cutting machine
Kneading machine for flour making
Pneumatic can crusher
Agriculture robot
Working model of pelton wheel turbine
Fork Lifter
Sterling Engine
Pneumatic railway crossing
Hydraulic bridge
Air engine
Pneumatic can crusher
Fork Lifter
Automatic drilling machine
Mini turbine
Mechanical robotic arm
Go cart
Two wheel fork lifter
Portable hammering machine
Pedal power water purifier
Solar Grass Cutter
Mini JCB
Fire controlled robot
Patient chair come bed
Electrical Cart
Solar bucket conveyor
Steam Engine
Solar seeker
Hydraulic Bridge
Motorized spider
Pneumatic car jack
Stair climbing robot
One to many nut opener
Water sprinkler
Fatigue testing machine
Hydraulic power plant
Fuel injection system
Hydraulic press
Bicycle grinding machine
Hydraulic brake
Hydraulic jack
Peltier Based Cooling System
Hydraulic punching machine
Solar Recycle
Wire cutting machine
Agriculture robot
Sterling Engine
Stair Climbing trolley
Conveyor Automation
Pneumatic automatic door
Vertical Axis Turbine
Calligraphy Machine
Bottling Plant
Pneumatic Hammer
Smart Dustbin
Head Light Steering
Steam Turbine
Solar Based Washing Machine
Wire Straightening machine
Agriculture robot
Sterling Engine
Stair Climbing trolley
Conveyor Automation
Pneumatic automatic door
Vertical Axis Turbine
Calligraphy Machine
Bottling Plant
Pneumatic Hammer
Smart Dustbin
Head Light Steering
Steam Turbine
Solar Based Washing Machine
Wire Straightening machine
Hydraulic power plant
Fuel injection system
Hydraulic press
Bicycle grinding machine
Pneumatic based zigzag bridge
Automatic drilling machine
Stair Climbing trolley
Separation of metallic and non metallic material
Mini turbine
Conveyor Automation
Automatic scrap collecting robot
Mechanical robotic arm
Pneumatic automatic door
Coin based soda wending machine
Go cart
Vertical Axis Turbine
Differential gear assembly
Two wheel fork lifter
Calligraphy Machine
Efficiency of propeller shaft drive over chain drive in two wheeler
Portable hammering machine
Bottling Plant
Pipe line robot with leakage detection
Pedal power water purifier
Pneumatic Hammer
Object segregation with rejection
Solar Grass Cutter
Smart Dustbin
Electricity generation using road energy
Mini JCB
Head Light Steering
See Saw based electricity generation
Fire controlled robot
Steam Turbine
Gear control bi-directional to uni directional circular movement control mechanism
Patient chair come bed
Solar Based Washing Machine
Foot step electricity generation
Electrical Cart
Wire Straightening machine
Hydraulic actuator based mechanical braking system
Solar bucket conveyor
Agriculture robot
Contact less eddy braking system
Steam Engine
Sterling Engine
power generation from vehicle system
Solar seeker
Stair Climbing trolley
Pneumatic based dish wash machine
Hydraulic Bridge
Conveyor Automation
Pedal based washing machine
Motorized spider
Pneumatic automatic door
Quadric plant automation
Pneumatic car jack
Vertical Axis Turbine
Energy Generation from highway traffic
Stair climbing robot
Calligraphy Machine
Hydraulic punching machine
One to many nut opener
Bottling Plant
Pneumatic rifting machine
Water sprinkler
Pneumatic Hammer
Pneumatic railway crossing
Fatigue testing machine
Smart Dustbin
Android based window pain moving mechanism
Hydraulic power plant
Head Light Steering
Pedal operated washing machine
Fuel injection system
Steam Turbine
Solar power controlled automatic vehicle
Hydraulic press
Solar Based Washing Machine
Solar car jack
Bicycle grinding machine
Wire Straightening machine
Cloth hanging machine
Hydraulic brake
Hydraulic power plant
Automatic shoe polisher
Hydraulic jack
Fuel injection system
Bicycle washing machine
Peltier Based Cooling System
Hydraulic press
Bicycle grinding machine