Sketch32

Sketch32 turns your Android phone or tablet into an Arduino and ESP32 development environment. Write code, compile it on the device and upload it to your board over a USB OTG cable - no computer, no cloud. ⚙️ REAL COMPILING ON YOUR PHONE The compiler runs inside the app. Your code is never sent to a server; compiling happens entirely on your phone. 🔌 UPLOAD OVER USB OTG Connect your board with an OTG cable and flash it directly from your phone. Arduino Uno, Nano and Mega 2560 and the ESP32 are built in; more ESP32-family boards can be added as board packages from inside the app. ✍️ AN EDITOR BUILT FOR PHONES • Syntax highlighting and a symbol bar for { } ; ( ) and friends • Multi-file projects and full-screen writing • Board options: upload speed, flash mode, partition scheme and core debug level 📟 SERIAL MONITOR Watch your board's output live, send data back and change the baud rate. 🤖 AI CODE ASSISTANT Describe what you need and get code suited to the board you selected. When a compile error appears, fix it with a single tap. The free version includes a limited number of AI requests each month. 📚 LIBRARIES AND EXAMPLES • Search the Arduino library index and install libraries with one tap • Sketch32 notices when your code needs a library that isn't installed and offers to install it • Ready-made examples from Blink to Wi-Fi scanning and sensors, with comments in your language 🎓 FOR CLASSROOMS AND MAKERS Ideal for students, teachers and hobbyists who want to program a board anywhere - in class, in the lab or on the go. 💎 FREE AND PRO Sketch32 is free with ads and includes free uploads to your board every week; you can earn extra uploads by watching a rewarded ad. The free version requires an internet connection. Sketch32 Pro removes ads and the upload limit, works offline and adds more AI requests. 🌍 Available in English, Turkish, German, Russian, Japanese and Chinese. Note: Uploading needs a USB OTG adapter or cable and a USB cable that carries data (some charging cables carry power only).