Source: https://mokxi.com/boards/xiao-esp32-s3 Board # Seeed XIAO ESP32-S3 simulator, the S3 on a thumbnail The XIAO ESP32-S3 is the DevKitC-1’s Xtensa LX7 chip at 240 MHz on a board 21 by 17.5 mm with fourteen pads. Its D0 to D10 are the XIAO family’s numbers, not GPIOs, and a sketch uses them as they are. The yellow user LED on GPIO 21 lights when the pin is LOW, and WiFi joins a simulated network. Start building free - 6 peripheral areas modeled - 1 project ready to run - Real time on your own machine Click to open it in the editor The board is running real firmware right now. Click it to open the circuit in the editor. The model ## What is modeled Taken from the board's own contract document and put in plain words, with what is missing beside it. ### Modeled Core One Xtensa LX7 core at 240 MHz, the DevKitC-1 model whole GPIO The eleven D pads, with the XIAO’s names defined for your sketch ADC1 A0 to A5 and A8 to A10, which are GPIO 1 to 9 LEDC PWM on any pad The user LED GPIO 21, lit when the pin is LOW, as LED_BUILTIN WiFi, simulated WiFi.h over a network written in software: no radio, no 802.11, and real internet only when you sign in and switch it on ### Not modeled - The camera and microSD of the Sense version. - The battery charger, the second core and a real radio. - The PSRAM: sketches run in the chip’s own RAM. Start here ## Open one and press Run Each of these opens in the editor exactly as it is drawn here. Projects ## Every built-in project on the XIAO ESP32-S3 Each has its own page with the circuit running, the code and a parts list. - XIAO S3 knob Beginner ## Questions Is it free? Yes. Every board and every part is on the free plan, with no account needed. Is D6 GPIO 6? No. D6 is GPIO 43, the UART’s TX, and D7 is GPIO 44. Use the D names in your sketch; they are defined for this board. Which way is the LED wired? It lights when GPIO 21 is LOW. digitalWrite(LED_BUILTIN, LOW) turns it on. Does a sketch for the other XIAO boards run on it? If it uses the D names, yes: they sit on the same pads. The GPIO numbers under them differ. Also here ## The other boards Every one of these runs today, and every one is free. ESP32-C3-DevKitM-1 A RISC-V chip at 160 MHz, on the real memory map. Open the board page Arduino Uno R3 The classic Arduino, with an ATmega328P running at 16 MHz. Open the board page Arduino Nano The Uno’s chip on a small board that fits a breadboard. Open the board page Arduino Mega 2560 The big Arduino, with 54 digital pins and four serial ports. Open the board page Arduino Leonardo An Uno-shaped board whose chip does its own USB serial. Open the board page ESP32-C6-DevKitC-1 A second RISC-V board, with 31 pins and simulated WiFi. Open the board page ESP32 DevKit V1 The classic ESP32 at 240 MHz, with simulated WiFi. Open the board page ESP32-S3-DevKitC-1 The ESP32-S3 at 240 MHz, with USB serial and an RGB LED. Open the board page All 39 boards ## Try it on your own firmware What you build here runs on the board on your desk, unchanged. Nothing to install and no account needed. Start building free Open the editor