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Compact ESP32-PICO-D4 Development Board With Wi-Fi, Bluetooth LE, Grove Expansion And Programmable I-O
The M5Stack C008 Atom-Lite is a compact ESP32-PICO-D4 development board designed for embedded smart-hardware, IoT nodes, wearable devices, automation, and wireless-control applications. Its ESP32-PICO-D4 integrates a 32-bit dual-core Xtensa LX6 processor operating at up to 240 MHz, together with 520 KB SRAM and 4 MB SPI flash. The board provides 2.4 GHz Wi-Fi, Bluetooth, and Bluetooth LE connectivity while maintaining a compact 24 x 24 x 9.5 mm form factor suitable for space-constrained projects.
Atom-Lite combines essential development features including a programmable RGB LED, user button, infrared transmitter, Grove HY2.0-4P interface, exposed GPIO pins, and USB Type-C connectivity for programming and power. The built-in 2.4 GHz 3D antenna reduces the need for an external antenna, while the Grove interface supports I2C, UART, and general-purpose I-O expansion. Support for UIFlow1, UIFlow2, Arduino IDE, ESP-IDF, and PlatformIO makes the board well-suited for rapid prototyping as well as customised embedded-system development.
Key Features
- ESP32-PICO-D4 Controller: Integrates a 32-bit dual-core Xtensa LX6 processor operating at up to 240 MHz
- Memory Resources: Provides 520 KB SRAM and 4 MB SPI flash for application code and data
- Wireless Connectivity: Supports 2.4 GHz Wi-Fi, Bluetooth, and Bluetooth LE communication
- Compact Form Factor: Measures only 24 x 24 x 9.5 mm for space-constrained embedded applications
- Built-In Antenna: Integrated 2.4 GHz 3D antenna supports compact wireless-system designs
- Grove Expansion: Grove HY2.0-4P connector supports I2C, UART, and general-purpose I-O connectivity
- Expandable GPIO: Exposed G19, G21, G22, G23, G25, and G33 pins support custom peripheral integration
- Infrared Transmission: Built-in IR transmitter enables infrared-control applications
- RGB Status Indicator: Integrated SK6812 3535 RGB LED can be programmed for status and visual feedback
- Programmable Button: User-configurable button supports local input and application control
- USB Type-C Interface: Provides convenient power connection and firmware programming
- Mounting Support: Rear M2 screw hole helps secure the board inside embedded assemblies
- Development Support: Compatible with UIFlow1, UIFlow2, Arduino IDE, ESP-IDF, and PlatformIO
Applications
- IoT nodes
- Embedded smart-hardware development
- Wireless sensor nodes
- Home-automation systems
- Wearable electronic devices
- Remote-control systems
- Infrared-control projects
- Robotics
- Smart switches and controllers
- Bluetooth LE devices
- Wi-Fi-connected devices
- Rapid embedded-system prototyping
- Educational electronics projects
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