Content
Session 1:
Introducing the ESP8266: Summary of it’s hardware and features, summary of the programming toolchain.
Practical exercise: Learn how to use the Arduino toolchain, how to program and upload your first program, how to debug your program via serial port.
Program Blinky – Our first program: Blink the ?c’s onboard led. Program Blinky 2 – Read an analog input value (voltage) and change the blinking frequency.
Required hardware: Breadboard, NodeMCU12e, potentiometer.
Session 2:
PWM-basics, circuit design to control a power led’s brightness, programming a low pass filter for measurement values, i2c basics.
Practical exercise: Learn how to prototype a circuit using a breadboard, and how to filter measurement values. Program Light up! – Controls a power-led’s brightness. Program Light up! Extended – Adds an OLED display with i2c interface to the led controller. Required hardware: Breadboard, NodeMCU12e, potentiometer, resistors, transistor, power led, OLED-display.
Session 3:
Basics one-wire-bus, a little bit HTTP und HTML,
Practical exercise: Learn how to use the DHT22 sensor and how to program a simple webserver. Program Roomy – Measures the room’s temperature and humidity, outputs measurement values to an OLED-display. Program WebRoomy – Adds a webserver and a website for measurement value visualization.. Required hardware: Breadboard, NodeMCU12e, DHT22, OLED-Display
Session 4:
MQTT messaging protocol basics.
Practical exercise: Learn how to program a MQTT publisher and subscriber to distribute sensor data. Program PubCuty – Publishes sensor data via MQT. Program SubCuty – Subscribes sensor data via MQTT. Required hardware: Breadboard, NodeMCU12e, DHT22, OLED-Display, Raspberry Pi + Mosquito MQTT-Broker.
Session 5:
Introducing Node-Red – a browser based editor to manage IoT-data flow.
Practical exercise: Learn how to build a browser based MQTT dashboard.
Required hardware: Breadboard, NodeMCU12e, DHT22, OLED-Display, PC with MQTT-Broker + Node-Red Runtime.
Learning objectives
Student learns how to use ESP8266 system on home automation applications.
Prerequisites
Recommended precondition: Basic skills in C, C++ or similar programing languages. Basic knowledge in Digital Technology
Addressed to: everyone who wants to get into programming and using microcontrollers in practice.
Bring your own laptop.