Gravity IO Expansion Shield for Arduino V7.1
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INTRODUCTION:IO Expansion shield is one of the market favourites. Fast robotics prototyping made affordable and simple thanks to this design. Soldering and wiring often becomes a problem when a bridged connection happens and components break. Increasing time and cost for projects. Often, without this solution and a soldering station, wire cripping tools or soldering station, robot prototyping or electronics DIY becomes a very long term project.
The DFRobot Expansion shield introduced to the market the famous color code for sensors and actuators input and output. The 3 pin format for Signal, Voltage and Ground is extremely useful, specially if used altogether with our increasingly large range of modules, sensors and devices that just fit .
Alternatively, the board includes power input for salvaged power supplies or laboratory power supplies. Very common Xbee socketfor multipurpose wireless connectivity such as RF, wireless, bluetooth.
The new version includes a voltage hardware setting through a jumper to allow compatibility with a bigger range of components at 3.3v like Raspberry pi, Due and others.
It also includes a Servo external power, with a protective diode. This way you can enable a large range of servos from your Arduino.
Latest version features a convenient switch that lets you program your ATmega328 boards like UNO, while you have another Serial device connected like a Xbee. Switch it, program it and get it back up and running with another switch. You don't need to disassemble your hardware or wiring.
A LED on top board and a reset button is in order to make it just a natural extension to Arduino boards. The LED is connected to pin 13
- Compatible with the new Arduino Due
- 3.3V/5V operating voltage select
- Switch for wireless communtcation & programme
- More Easily recognitive interfaces
- Colorful header for illustrating digital or analog pins
- Immersion gold surface
- Input Voltage
- 7-12V, PWR_IN
- 4.8-6V, SERVO_PWR, depending on your servo
- Compatible module voltage: 5V/3.3V
- Support interface: I2C, SPI, Xbee (Xbee pro), Bluetooth, APC220
- IO Expansion Shield for Arduino V7.1 x1
PROJECTS:Project 1. Sunflower - Arduino Solar Tracker
In modern solar tracking systems, the solar panels are fixed on a structure that moves according to the position of the sun. In this project it designs a solar tracker using two servo motors, a light sensor consisting of four mini photocells and Arduino UNO board.
DFRduino UNO R3
I/O Expansion Shield for Arduino
DF05BB Tilt/Pan Kit (5kg)
Mini Photocell x 4
Resistor 100kOhm x 4
DFRobot Solar Panel
Project 2. How to make a Heart Rate Monitor
This project makes a Heart Beat Detection and Monitoring System using Arduino that will detect the heart beat using the Pulse Sensor and will show the readings in BPM (Beats Per Minute).
Arduino UNO Rev3
I/O Expansion Shield for Arduino
Heart Rate Sensor
ESP8266 WiFi Bee
Project 3. Build KnowFlow: automatic water monitor
KnowFlow is the name of this water quality monitoring device, based on Arduino Uno. It can automatically monitor 5 parameters of water: pH, Temperature, Dissolved Oxygen, Electronic Conductivity, ORP.
- Central Control Unit: Arduino Uno (DFRobot Bluno in this case) and Expansion Shield (DFRobot Expansion Shield V7.1 in this case)
- Water Sensors: pH (pH probe and pH circuit board); EC (EC probe and EC circuit board); ORP (ORP probe and ORP circuit board); Temperature (temperature probe and temperature circuit board); Dissolved Oxygen (DO probe, BNC and circuit board); real time clock circuit board
- Data Storage: Micro-SD module, Micro SD card
- Fit and fix: mounting plate, water proof box( 200mm_150mm_75mm), water proof joint
- Other parts: Cables (Wires), bread board, bolts and nuts, screws, battery, double-sided adhesive, write on tape, small wrench, spiral cable wrap
Project 4. How to Make An Automatic Water Changing System
DFRduino UNO R3 *1
Gravity: IO Expansion Shield for Arduino V7.1 *1
Gravity: Analog Turbidity Sensor For Arduino *1
Immersible Pump & WaterTube *1
Gravity: Analog pH Sensor / Meter Kit For Arduino *1
Wall Adapter Power Supply 12VDC *1 Solenoid Valve *1
Gravity: Digital 5A Relay Module *1
Water Pipe *2m
Interface (for solenoid valve) *2
I2C 16x2 Arduino LCD Display Module
Project 5. Arduino Project - Make an Arduino Intervalometer For Timelapse Photography
Some SLRs have input jacks built in to them for external triggers or intervalometers for time lapse photography. What the Nikon D40 does have is an IR receiver, designed to be used with a shutter remote. Here is what I used on the Arduino Project:
DFRduino UNO (Arduino Compatible)
Gravity: IO Expansion Shield for Arduino
Gravity: Digital IR Transmitter Module
Project 6. How to Make an Automatic Christmas Tree
With all the lights and decorations that people use at Christmas, power is left on all the time and electricity bills skyrocket. I made this motion detecting Christmas tree light setup that only turns on when people are nearby.
PIR Sensor x1
I/O Expansion Shield v7.1 x1
LED Strip x1
Relay Switch x1
Mini mp3 module
Regular power extension lead (with some modifications)
1k resistors x2
Project 7. How to Make a Santa Alarm
Using the new RGB color sensor available at DFRobot, I rigged up a simple proximity alarm. I can use this to warn me if someone is in a close range of my Christmas tree putting presents under there. The hardware of this project is pretty simple and suitable for beginners.
1 x Bluno Microcontroller v2.0 (SKU: DFR0267)
1 x Gesture Sensor
1 x I/O Expansion Shield v7.1 (SKU: DFR0265) (the extra I/O’s are very useful and prevent messy wiring!)
1 x Digital Buzzer Module (SKU: DFR0032)
1 x 220R Resistor (any will do)
1 x Red LED
1 x Breadboard (for prototyping and checking the circuit – any will do.)
Jumper Wires for connections
Project 8. How to make a Smart Rock-Paper-Scissors Game Robot
When finishing reading this tutorial, you will find those very simple devices, principles and technologies can help you build very interesting equipment.
DFRduino Uno R3 x 1
Gravity IO expansion shield for Arduino x 1
Tower Pro MG90S servo x 3
Ultrasonic wave sensor x 1
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