スマートフォンからESP32へ指示を出したり、ESP32同士で通信するのに近距離であればBluetoothがとても便利です。今回はESP32におけるBluetooth通信のうち受信についての紹介をします。 Bluetoothプログラムを他のものに流用しやすくするため、それ以外の部分は ...

この前、ちとNoteっぽくない事を書いてしまった（移動済み）ので、ちょっと口直しに別の事を書こうと思ったのですが、3Dプリンタは今、おやすみ中なので、最近ハマっていたESP32について少し。 はじめに 以前はやっていたラズパイ・オーディオ。

Typically associated with circuitry projects and real-time operating systems, microcontrollers are great for tinkerers who prefer working with embedded devices. But unlike their SBC counterparts, you ...

無線通信対応SoC「ESP32」などの開発で知られるEspressif Systemsが、RISC-VベースのSoC「ESP32-C5」の量産を開始しました。 ESP32-C5 2.4 ...

Last year we brought word of a project from [Shyri Villar] that turned a stock Game Boy Advance into a Bluetooth controller by exploiting the system’s “multiboot” capability. The prototype hardware ...

We probably don’t need to tell the average Hackaday reader that the ESP32 is a powerful and extremely flexible microcontroller. We’ve seen some incredible projects using this affordable chip over the ...

The cheap WLAN and Bluetooth chips from the manufacturer Espressif, ESP32, contain undocumented commands in the Bluetooth hardware communication in current firmware versions. This opens up a security ...

Update 3/9/25: After receiving concerns about the use of the term 'backdoor' to refer to these undocumented commands, we have updated our title and story. Our original story can be found here. The ...