Components

Browse all components available in the simulator. Each page documents setup, interfaces, simulated behaviour, and known limitations.

MCU does

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MCUs

STM32F405 ExpressAdafruit board built for bare-metal and RTOS firmware developmentSeeed XIAO RP2040Tiny thumb-sized board with a NeoPixel LED and USB serial outputSeeed XIAO ESP32-C3RISC-V board with a built-in Wi-Fi radio simulated at the packet levelSeeed XIAO nRF52840Cortex-M4F board with an onboard RGB LED and SEGGER RTT loggingST Nucleo-F767ZICortex-M7 board exposing every GPIO on Arduino and Morpho headersRaspberry Pi Pico 2Dual Cortex-M33 RP2350 board that boots through the real bootrom path

Sensors

MCP9808High-accuracy temperature sensor with programmable alert thresholdsBMP280Measures atmospheric pressure and temperature for altitude estimationMPU-6050Tracks motion in 3D space — acceleration, rotation, and temperatureMMA8451QThree-axis accelerometer you can tilt while the firmware reads it

Displays

SSD1306 OLEDSmall 128×64 monochrome display commonly used for status readoutsLCD1602Classic two-line character display for simple text outputAPA102 LED StripChainable full-colour LEDs with individual brightness control per nodeLEDA single indicator light that turns on or off based on a pin signalLED RGBA three-channel LED that can mix any colour from red, green, and blueSeven Segment DisplaySingle digit driven one segment at a time, straight from GPIO pins

Motors

SG90 ServoLightweight servo motor that rotates to a commanded angle

Audio

BuzzerPlays audible tones in the browser when driven by the firmware

Network

RF EnvironmentShared deterministic air where radios collide, fade, and interfereWi-Fi NetworkInfrastructure AP, DHCP/DNS, optional Internet, and a real browser tab for firmware web servers

Inputs

Button SwitchA push button you can click in the simulator to trigger firmware events

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