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Lesson 33 Building a Smart Home System
Overview
In this lesson, you will learn to build a smart home system with ESP8266 and sensors. You can
also use the same idea to develop other interesting projects.
Components Required
Name Qty Name Qty
MEGA 2560 1 ESP8266 Module 1
DS3231 RTC module 1 LCD1602 1
Fan blade 1 3-6v Motor 1
L9110 1 Power Supply Module 1
9V1A Adapter 1 Breadboard 1
DHT11 Temp and Humi module
1 DuPont Wire 32
Connection Schematic
AREF
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
GND
SDA
SCL/RESET
3V3
5V
A0
A1
A2
A3
A4
A5
GND1
GND2
VIN
Analog Input
Digi tal Input/Output
A8
A9
A10
A11
A12
A13
A14
A15
TX3
RX3
RX2
RX1
TX2
TX1
SDA
SCL
VSS
VDD
V0
RS
RW
E
D0
D1
D2
D3
D4
D5
D6
D7
A
K
1
2
3
LCD1602
Potenti
ometer
Mega 2560
VCC
OUT
GND
DHT11
3V3
RST
EN
TX GND
IO2
IO0
RX
ESP
32K
SQW
SCL
SDA
VCC
GND
RTC
OA
VCC
VCC
OBGND
IA
IB
GND
8266
L9110
GND
VCC
Power
Module
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