Keyestudio KS0436 Manual

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WELCOME TO THE
KIT GUIDE
This is your map for navigating beginning embedded electronics.
This kit contains all the information you will need to build the circuit
and robot projects for the keyestudio REV4 Board.
When you’re done with this guide, you will have built five great projects
and acquired the know-how to create countless more.
Now enough talk —let’s start something!
For this guide with more information for each circuit project, visit:
wiki.keyestudio.com

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Contents
INTRODUCTION............................................................................................ 4
.................................................................... 4
.....................................................................6
.......................................................................8
................................................................................. 11
.......................................................................................16
GET STARTED WITH CIRCUIT PROJECTS!................................................17
Circuit 1: Blinking an LED.................................................................. 18
Circuit 2: Light Extension...................................................................29
Circuit 3: Potentiometer.....................................................................43
Circuit 4: Photo Resistor.................................................................... 55
Circuit 5: Buzzer..................................................................................63
Circuit 6: Button..................................................................................73
Circuit 7: 74HC595 And Segment Display........................................86
Circuit 8: 4-Digit Segment Display.................................................... 99
Circuit 9: LED Matrix Display.......................................................... 118
Circuit 10: LCD “Hello, World!”........................................................126
Circuit 11: Temperature Sensor...................................................... 135
Circuit 12: Temperature and Humidity.......................................... 143
Circuit 13: Flame Sensor..................................................................152

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Circuit 14: Tilt Ball Switch............................................................... 162
Circuit 15: Vibration Switch............................................................ 170
Circuit 16: Sound Sensor..................................................................176
Circuit 17: Distance Sensor..............................................................186
Circuit 18: Driving Servo Motor...................................................... 198
Circuit 19: Relay................................................................................208
Circuit 20: PIR Motion Sensor......................................................... 216
GET STARTED WITH ROBOT PROJECTS!............................................... 226
ROBOT BASEPALTE ASSEMBLY.......................................................227
Circuit 21: Motor Basics...................................................................233
Circuit 22: Light Following Robot................................................... 248
Circuit 23: Remote-Controlled Robot............................................. 259
Circuit 24: Ultrasonic Ranging Robot............................................. 270
Circuit 25: Object Following Robot.................................................283
GET ALL RESOURCES FOR ROBOT PROJECTS!......................................294

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INTRODUCTION
The keyestudio REV4 Board is your
development platform.
The REV4 Board is essentially a
small, portable computer, also
known as a microcontroller.
It is capable of taking inputs (such
as the push of a button or a reading from a light sensor) and
interpreting that information to control various outputs (like blinking
an LED light or spinning an electric motor).
This board is capable of taking the world of electronics and relating it
to the physical world in a real and tangible way.
The keyestudio REV4 Board is a microcontroller board based on the
ATmega328P microprocessor.
It has 14 digital input/output pins (of which 6 can be used as PWM
outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a
power jack, 2 ICSP headers and a reset button.
It contains everything needed to support the microcontroller; simply

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connect it to a computer with a USB cable or power it via an external
DC power jack (DC 7-12V) or via female headers Vin/GND(DC 7-12V)
to get started.
Hardware Overview:

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A breadboard is a circuit-building platform that allows you to
connect multiple components without using a soldering iron.
This is a half-size transparent breadboard, good for small projects.
It has 2 power rails on both sides, a standard double-strip in the middle
with 30 columns and 10 rows - a total of 400 tie in points.
This tiny breadboard also has a self-adhesive on the back, so you can
stick it onto an Arduino protoshield or keyestudio chassis.
Breadboard Use:

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Before you can build circuits, you’ll want to first assemble the
breadboard baseplate.
This keyestudio baseplate
makes circuit building easier by
keeping the REV4 Board
microcontroller and the
breadboard connected without
the worry of disconnecting or
damaging your circuit.
1) To begin with, collect your parts: the REV4 Board, breadboard,
screwdriver, keyestudio baseplate and four baseplate screws.

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2) Align the REV4 board with its spot on the baseplate.
The text on it should face the same direction as the text on the
breadboard and the baseplate.
Using four screws, affix the REV4 Board to the four stand-off holes
found on the baseplate.
3) Peel the adhesive backing off the breadboard.
4) Carefully align the breadboard over its spot on the baseplate. The
text on the breadboard should face the same direction as the text on
the baseplate. Firmly press the breadboard to the baseplate to
adhere it.

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Your baseplate is now assembled!