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Development/Design

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[GAS] How to post the content entered in a Google Form to a specific channel in Slack.

Using GAS and the Slack API to set up automatic forwarding of submissions to Slack when submitting Google Forms; need to create a Slack app from the Slack API admin page to get the webhook URL.

Development/Design

[Mia] How to use Google Calendar API with Go: From Refresh Token to Event Acquisition

The Google API does not allow direct use of refresh_token to access the API. Instead, you must use refresh_token to issue a temporary access_token and send a request to the API using this token.

Development/DesignServer (Go)

[Mia] Implementation of Google Calendar API access utilizing Auth Code and Refresh Token (Go and Flutter)

To manage access to the Google Calendar API more securely and efficiently, instead of using access tokens directly on the app side, we have changed the mechanism to send an authentication code (Auth Code) to the backend, generate and store a refresh token, and use that refresh token to access the Changed to a mechanism to access Google Calendar API.

application(Flutter)Development/DesignServer (Go)

[Mia] How to access Google Calendar from the Flutter application and display the day’s appointments in the console.

Thorough explanation of how to implement Google Calendar integration in Flutter apps, from setting up authentication flow using Google Sign-In, to acquiring events using Google Calendar API, setting scope, and detailed OAuth 2.0 procedures.

application(Flutter)Development/Design

How to resolve Dirty status of database migration in Golang

This section summarises how to deal with a Dirty state of migration in server development using Golang and golang-migrate. a Dirty state means that the migration has been interrupted and the database is in an inconsistent state. The solution procedure is described below as a reminder.

Development/DesignServer (Go)

[ESP32] From development board to designing your own printed circuit board and making it into a product

The cat-shaped talking robot Mia is developed on a home-made board using an ESP32 Wi-Fi Bluetooth module; this memorandum summarises the process from the initial development using an ESP32 development board to the creation of a home-made board and several changes for the product.

2024.04.28 2024.11.09

Development/Designelectronic circuit

[React] Steps to introduce the i18n library and make your project multilingual.

For developers aiming for multilingual support in React, this article details the steps to implement automatic language switching based on the user's browser settings using the i18n libraries react-i18next and i18next-browser-languagedetector. Step-by-step instructions on how to create a multilingual directory structure, build i18n configuration files, add language files, prepare components for translation, and implement a language selection drop-down in the navigation bar; also touches on how to rebuild dependencies in a Docker environment.

Development/DesignWeb

[Switch] How to disassemble and repair a high temperature sleep error by yourself.

The procedure for fixing the high temperature sleep error on the Nintendo Switch yourself is described: remove the back cover using a Y- and cross-shaped screwdriver, then remove the silver plate. The cooling fan can be taken out after removing the battery connect, heat sink and game card unit in that order.

2024.04.24 2024.10.26

built-in(C++)Development/Design

Servo motor vs. DC motor: sound comparison

The sound volume was compared between a servo motor and a DC motor as a mechanism to move the mouth of a talking robot.The DC motor was connected to an ESP32 using an L293D motor driver, and the gears to be attached were made using a 3D printer. The rack and pinion moves by itself, but not when a rubber is attached.

2023.08.28 2024.10.26

Development/Designelectronic circuit

[Flutter] How to implement infinite scrolling to seamlessly load user-created phrases.

Extended state management, using a class (UserPhraseState) containing isLoading and hasMore in addition to the list of phrases, so that the UI can correctly determine if the list of phrases is empty, if data is loading, and if data even exists. The UI can now correctly determine if the list of phrases is empty, if data is being loaded, and if data exists, allowing for infinite scrolling.

application(Flutter)Development/Design

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