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.
Category: Tutorial
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.
ESP32 practical power saving: preserve gpio status, external and ULP wake up – 5
ESP32 has the ability to take advantage of many energy saving modes, but when you set sleep you also lose the status of the pins, but there is a way to preserve it and we will analyze it. Furthermore, the esp32 has powerful features such as the UPL a low-power processor that can wake you up in case of need.
ESP32 practical power saving: store data, timer and touch wake up – 4
ESP32 has the ability to take advantage of many energy saving modes, but if you use more aggressive sleep you can lost session, we look to how preserve the data and how to wake at a given moment in time and via touch.
ESP32 practical power saving: deep sleep and hibernation – 3
ESP32 has the ability to take advantage of many energy saving modes, here we will understand how to put the device in deep sleep and hibernation mode but above all we will try to understand the differences.
ESP32 power saving: modem and light sleep – 2
ESP32 is capable of light sleep and deep sleep power saving modes, here we are going to learn how to put in modem sleep and light sleep mode your device and what mean put in sleep mode.
