Embedded Systems Design

ESP8266 - Webserver
ESP8266 Flavors
ESP-01
12-E NodeMCU
WeMos D1 Mini
What can you do with this ?
What can you do with this ?
STA Mode
AP Mode
WiFi Modes
Station Mode
  • Creates its WiFi Network
  • Connects to an existing Network
Access Point
SSID: Kitchen Timer IoT #
(no password)
Pinout
Connection Example
Connect your module and find your Network...
Exchange Data
  • Webservers/Webpages
  • UDP/TCP comms
What is a Webserver ?
Webpage
http://192.168.4.1
Block Diagram
192.168.4.1
Kitchen Timer IoT #
Webpage
Serial Communication
9600 Baudrate
Serial Commands List
$SET,TMRS,mm:ss\n
$STR\n
$STP\n

$INC\n

$GET

$mm:ss\n

Mapping
$STR\n
$STP\n

$INC\n

$SET,TMRS,mm:ss\n
$GET

  • It is sent every 1 second

Your Task...
  • Implement the code that will parse these two commands. 
  • When the start button is pressed, turn on an LED
  • When the stop button is pressed, turn off the LED
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