DynamoDB JavaScript SDK v2 v3: manage items – 4
I would like to write a step by step tutorial on how to create an Alexa Smart Home Skill from scratch.
We will learn how to manage items with the JavaScript SDK v2 and v3.
Renzo Mischianti Articles
WeMos D1 mini high resolution pinout and specs
WeMos D1 mini high resolution draw of pinout and specs
DynamoDB JavaScript SDK v2 v3: add items with DB or DocumentClient – 3
I would like to write a step by step tutorial on how to create an Alexa Smart Home Skill from scratch.
We will learn the different the system to do basic operation.
DynamoDB JavaScript SDK v2 v3: manage tables – 2
I want to write a step by step tutorial on how to create an Alexa Smart Home Skill from scratch.
We will learn how to manage tables with the JavaScript SDK v2 and v3.
Ebyte LoRa E32 device for Arduino, esp32 or esp8266: WOR (wake on radio) and new ESP32 shield – 8
Here a tutorial on E32 LoRa (Long Range) device very cheap and very long range (from 3Km to 8Km).
In this chapter we are going to wake on radio the LoRa E32 and microcontroller and we show the ESP32 DEV KIT v1 shield created for this device.
DynamoDB: prerequisite and JavaScript SDK v2 and v3 – 1
I want to write a step by step tutorial on how to create an Alexa Smart Home Skill from scratch. So I’m going to present all the prerequisites and steps to create a Smart Home Skill connected to our micro-controller able to manage every connected device.
We will give a brief introduction to DynamoDB and the prerequisites required to work with the JavaScript SDK v2 and v3.
ESP32: integrated FFat (FAT/exFAT) FileSystem – 6
The ESP32 has enough resources to be able to use a FAT system which is certainly more expensive in terms of resources, but which offers large dimensions and few limitations, as well as compatibility with various devices.
ESP32: integrated LittleFS FileSystem – 5
LittleFS was recently added and focuses on higher performance and directory support, but has a higher resource consumption and occupancy per file, although not by default for esp32 it should be remembered that it takes up less resources than FatFS.
How to use SD card with esp32 – 2
When you use a microcontroller an important features is store data, for logging or setting, for a web server or to show image. The better solution is an SD card, because It’s simple, small and low power device.
Now we are going to look how to connect and use with standard SD library with esp32.
ESP32 practical power saving: wake up from light sleep via UART and GPIO – 6
ESP32 has the ability to take advantage of many power saving modes, there are also many wake up sources, some are specific for light sleep and in this article we will focus on UART and GPIO wake up.
