Monthly Archive: June 2021

Display OLED ssd1306 arduino esp32 esp8266 basics 3

SDD1306 OLED display: wiring and basic use with esp8266, esp32 and Arduino – 1

SSD1306 IC is used for the most commons OLED display is a single-chip CMOS OLED/PLED driver with controller for organic / polymer light emitting diode dot-matrix graphic display system. It consists of 128 segments and 64 commons.
We are going to use it with SPI and i2c and learn the basic function.

DynamoDB JavaScript SDK v2 and v3 query 0

DynamoDB JavaScript SDK v2 v3: query – 6

I would like to write a step by step tutorial on how to create an Alexa Smart Home Skill from scratch. So we present all the prerequisites and the step to create a Smart Home Skill connected to our microcontroller to manage all kinds of devices.
We will learn how to query table with the JavaScript SDK v2 and v3.