This is a sample code for using buttons in Arduino. It's not well known, but when you use a pull-up, you can easily use the buttons with no pull-up resistance. Read more

Because I touched the Cloud Function of Google, it is the note. This is the output and get in HelloWorld and Json.

This is a sample of adding a TextField to UIAlertController.

This is the sample code for the NavigationContoroller. The NavigationContoroller moves sideways to make screen transitions.

I tried to use the RTC module with ESP32 and got a little stuck, so I wrote about it. To conclude, I solved the problem Read more

This is a sample code to generate a QR code from a character string or URL. Reference: CIImageを Read more

Here is a sample of how to issue alerts using UIAlertController. If you set UIAlertControllerStyle.alert to UIAlertControllerStyle.actionSheet, it will be an alert that comes out from the bottom. Read more

The alerts that come out from below are implemented using UIAlertController. A long time ago, there was a time when alerts coming out of the bottom were called UIActionSheets, but they have been integrated into UIAlertController. Read more

This is a sample code of how to write enum and enum. Here, we created a class called “person” and registered Kabigon's name and hometown using enum. Read more

What do I have to learn to make an iPhone app from? My friends often ask me, “What's the best way to study?", so I've put together some recommendations. Read more