Source: https://mokxi.com/boards/lolin32-lite Board # Wemos LOLIN32 Lite simulator, an ESP32 with a battery socket The LOLIN32 Lite is a classic ESP32, of which one Xtensa LX6 core runs here, on a narrow board with a LiPo charger: twenty-six pins named by GPIO, 0.9 inch between the rows. Its blue LED on GPIO 22 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 Hold the button 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 LX6 core, the DevKit V1 model whole GPIO The twenty-six header pins, numbered as the silkscreen numbers them ADC1 VP, VN and 32 to 35 The blue LED GPIO 22, lit when the pin is LOW, as LED_BUILTIN Serial The USB chip, wired to the serial monitor 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 battery charger and a battery: BAT+ is left open. - The second core, ADC2, the DAC and touch sensing. - TX and RX pins: the board does not bring them out. 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 LOLIN32 Lite Each has its own page with the circuit running, the code and a parts list. - LOLIN32 Lite button Beginner ## Questions Is it free? Yes. Every board and every part is on the free plan, with no account needed. Why does the LED go out on HIGH? It is wired from 3.3 V to GPIO 22, so it lights when the pin is LOW. digitalWrite(LED_BUILTIN, LOW) turns it on. Where are SDA and SCL? Arduino’s LOLIN32 Lite board puts them on 19 and 23, and Wire.begin() here does the same. Is there a 5 V pin? No. The board has 3V and the battery socket, and nothing at 5 V on its headers. 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