Introduction

Why ESP32, the trigger

I want to tune the AK4558EN codec board I created last time so that it can be widely used for music listening applications.

Points of remodeling

RMS Output Noise (f = 10 Hz to 10 kHz) 0.003 V

RMS Noise: 0.8µVRMS (10Hz to 100kHz) The
specifications are as above, but how much change is in the world of self-satisfaction.

Change the schematic.

Here again, I will install it on the Jetson Nano that I just bought, unmodified. It worked fine. I want to use this as the main for a while.

Synopsis

Build development environment

Setup

■ Implementation
BOM list:
ESP32-DevKitC 1 piece
ATECC608A 1 piece
SOIC ⇒ DIP…

Synopsis

Hardware that enhances security

Example of…

How to connect securely to the cloud

1,X.509 certificate

2, IAM user, group, role (basically ID and password)

3, Amazon Cognito ID
(Login with Amazon, Facebook, Google, etc…

Kentaro Mitsuyasu

I work for a security and Linux company, and this blog summarizes some of the technologies I’ve been interested in recently. I like music, trivia, travel.etc.

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