Also we will need it for what's next

Regarding This workshop steps.

Electronics is the science of controlling electrical energy electrically, in which the electrons have a fundamental role.

Wikipedia

Study of electronic devices and technologies.
 

businessdictionary.com

Ohms Law

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

Wikipedia

Ohm's Law deals with the relationship between voltage and current in an ideal conductor. This relationship states that:

The potential difference (voltage) across an ideal conductor is proportional to the current through it.

physics.uoguelph.ca

Simplifying...

Basic Electronic components

Resistors

Diodes

MCU COMPONENTS

Tensilica L106 de 32-bit.

SoC:  ESP8266EX, wifi module

Incorporate antenna and flash memory to store programs or sketches 

Módulo WiFi de 2.4 GHz,

RAM de unos 50 kB

Acces to pins
buttons and leds

Kit NodeMCU

COMPONENTS IN THE PLATFORM

Features

Connection to the cloud 

Set of easy-to-use Widgets

Direct pin manipulation with no code writing

Easy to integrate and add new functionality using virtual pins

History data monitoring via History Graph widget

Device-to-Device communication using Bridge Widget

• Sending emails, tweets, push notifications, etc.