The M5Stack Atom-Matrix v1.1 combines Wi-Fi connectivity, a 5×5 RGB LED matrix, infrared control, and a high-precision BMI270 IMU, making it ideal for motion sensing, visual feedback, and embedded prototyping projects. The M5Stack Atom-Matrix v1.1 is an iterative upgrade of the Atom-Matrix. This product replaces the MPU6886 from the previous generation with a BMI270 six-axis IMU sensor, effectively improving attitude detection accuracy and response speed, making it better suited for high-precision applications such as motion capture and attitude control. The main controller adopts the ESP32-PICO-D4 solution with integrated Wi-Fi connectivity and onboard 4 MB SPI flash. It also features an infrared emitter and a 5×5 RGB LED matrix display. A programmable button is located beneath the LED matrix, supporting custom trigger logic for convenient implementation of IR remote control, visual interaction, and command triggering. This product is ideal for embedded development and prototyping scenarios that require high-precision attitude detection, infrared remote control, and visual interactive feedback. Features * Based on ESP32 * Compact form factor * Built-in 3-axis gyroscope and 3-axis accelerometer (I2C Address: 0x68) * Programmable button * RGB LED matrix display * Infrared transmission capability * Expandable pins and interfaces * Development Platform * UiFlow1 * UiFlow2 * Arduino IDE * ESP-IDF * PlatformIO Specifications SoC ESP32-PICO-D4 @ Dual-core processor, 240MHz DMIPS 600 SRAM 520KB Flash 4MB Wi-Fi 2.4 GHz Wi-Fi Input Voltage 5V @ 500mA Host Interface USB Type-C x 1, Grove (I2C+I/O+UART) x 1 RGB LED 25 x WS2812C-2020 MEMS BMI270 (I2C Address: 0x68) Infrared IR transmission supported Button Programmable button x 1 Antenna 2.4G 3D Antenna Operating Temp. 0 ~ 60°C Power Consumption 5V @ 61.65mA Product Size 24.0 x 24.0 x 13.9mm Product Weight 7.3g Resources * Product documents Package Contents * 1x ATOM Matrix ESP32 Dev Kit v1.1