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M5 Stack ATOM Lite ESP32 Development Kit
The M5 Stack ATOM Lite is a compact ESP32-based microcontroller development board featuring a 32-bit dual-core processor running at 240MHz with integrated WiFi and Bluetooth connectivity, designed for rapid IoT prototyping and embedded systems development. Professional IoT engineers, embedded systems developers, and makers leverage this platform to build smart home solutions, industrial monitoring systems, and wireless sensor networks with minimal footprint and power consumption. This development kit solves the challenge of creating connected devices quickly by providing a complete hardware platform with pre-loaded bootloader, extensive peripheral support, and seamless integration with the Arduino IDE and MicroPython environments.
Product Overview
The M5 Stack ATOM Lite ESP32 Development Kit is built around the Espressif ESP32 microcontroller, featuring a dual-core 32-bit processor architecture that enables simultaneous execution of WiFi/Bluetooth stack and user application code without performance degradation. The board integrates 4MB of flash memory for program storage, 520KB of SRAM for runtime operations, and multiple peripheral interfaces including SPI, I2C, UART, and GPIO pins. The ultra-compact form factor (24x24mm) makes it ideal for space-constrained applications while maintaining full compatibility with the broader M5 Stack ecosystem through its Groove connectors for rapid sensor and actuator integration.
What distinguishes the ATOM Lite from competing ESP32 boards is its optimized power management architecture with deep sleep modes consuming as low as 10uA, making it suitable for battery-powered IoT deployments. The integrated USB Type-C interface provides convenient programming and power delivery, while the onboard RGB LED and button enable immediate user feedback without additional components. The board ships with MicroPython pre-loaded, allowing developers to start coding Python scripts immediately without complex firmware flashing procedures, significantly accelerating development cycles for rapid prototyping and educational applications.
Key Specifications
| Specification | Details |
| Product Type | ESP32 Microcontroller Development Board |
| Brand | M5 Stack |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Processor | Espressif ESP32 Dual-Core 32-bit, 240MHz |
| Flash Memory | 4MB SPI Flash |
| RAM | 520KB SRAM |
| Connectivity | WiFi 802.11 b/g/n, Bluetooth 4.2 LE |
| Power Supply | USB Type-C 5V, 500mA typical |
| Operating Voltage | 3.3V logic level |
| GPIO Pins | 25 programmable GPIO pins |
| Interfaces | SPI, I2C, UART, ADC, PWM, Capacitive Touch |
| Dimensions | 24 x 24 x 13mm |
| Weight | 3 grams |
Key Features
- Ultra-Compact Form Factor: 24x24mm size enables integration into space-constrained IoT devices, wearables, and portable applications without sacrificing processing power or connectivity options
- Dual-Core Processing: 240MHz dual-core architecture allows simultaneous WiFi/Bluetooth stack operation and user application execution, preventing communication interruptions during computational tasks
- Pre-Loaded MicroPython: Ships with MicroPython firmware eliminating initial setup complexity, enabling developers to write and test Python scripts immediately via USB serial connection
- Integrated RGB LED and Button: Built-in programmable RGB LED and user button provide immediate feedback mechanisms and input handling without requiring external components
- Groove Connector Support: Compatible with M5 Stack Groove ecosystem enabling quick connection of sensors, displays, and actuators for rapid system integration and modular development
- Low Power Consumption: Deep sleep mode draws only 10uA enabling battery-powered deployments with extended operational lifetime, ideal for remote monitoring and wireless sensor applications
- USB Type-C Interface: Modern USB-C connector provides convenient power delivery and programming without proprietary cables, supporting standard USB power banks and chargers
Applications and Use Cases
- IoT Sensor Networks: Deploy distributed temperature, humidity, and air quality monitoring systems across buildings with WiFi connectivity for real-time cloud data transmission and analytics
- Smart Home Automation: Create compact WiFi-enabled controllers for lights, switches, and appliances integrating with popular platforms like Home Assistant, Blynk, and MQTT brokers for centralized home management
- Wearable Electronics: Develop fitness trackers, health monitoring devices, and smartwatch prototypes leveraging the minimal footprint and Bluetooth connectivity for smartphone integration
- Industrial IoT and Predictive Maintenance: Monitor equipment vibration, temperature, and operational parameters with remote data logging and alert generation for condition-based maintenance scheduling
- Educational Robotics: Build autonomous robots, drone controllers, and robotic arms with WiFi-enabled coordination between multiple units for collaborative learning in STEM education programs
- Environmental Monitoring Stations: Create portable weather stations and air quality monitors with cloud connectivity for environmental research, urban planning, and pollution tracking applications
How to Use
To begin using the M5 Stack ATOM Lite, connect the device to your computer via USB Type-C cable. The board comes pre-loaded with MicroPython, allowing immediate access to the REPL (Read-Eval-Print Loop) serial interface using tools like PuTTY, minicom, or the Arduino IDE serial monitor at 115200 baud rate. Write Python scripts directly in the REPL for interactive testing, or create .py files and upload them to the device's flash memory for persistent execution. For Arduino IDE users, install the ESP32 board package via the Boards Manager, select M5Stack-Core-ESP32 as your board, and compile C/C++ sketches with full access to all GPIO pins, ADC channels, and communication interfaces.
Leverage the integrated RGB LED by importing the onboard LED module and controlling color values through PWM registers, or use the capacitive touch button for user input detection triggering WiFi connections or sensor readings. For wireless communication, utilize the built-in WiFi and Bluetooth libraries to connect to networks, transmit sensor data to cloud platforms like Blynk or ThingSpeak, or establish peer-to-peer communication with other ESP32 devices. The Groove connector on the device accommodates standard M5 Stack modules like environmental sensors, OLED displays, and relay modules, enabling rapid hardware expansion without soldering. Always configure appropriate deep sleep modes in battery-powered applications using esp_deep_sleep_start() function to maximize operational lifetime, and implement OTA (Over-The-Air) firmware updates for remote device management in deployed installations.
Frequently Asked Questions
What is the difference between M5 Stack ATOM Lite and ATOM Matrix?
The ATOM Lite features a single Groove connector for modular sensor expansion, while ATOM Matrix includes a 5x5 RGB LED matrix for visual feedback and animations. ATOM Lite is ideal for minimal-footprint applications requiring basic connectivity, whereas ATOM Matrix suits projects needing visual indicators or LED-based interfaces. Both share identical processor specifications and power characteristics.
Can I use this board with Arduino IDE or must I use MicroPython?
The M5 Stack ATOM Lite supports both Arduino IDE and MicroPython. While it ships pre-loaded with MicroPython for immediate Python development, you can install the ESP32 board package in Arduino IDE and compile C/C++ sketches with identical functionality. Choose based on your programming preference and project requirements, as both environments have full access to hardware peripherals.
How long can this device run on a battery with WiFi enabled?
Battery life depends on WiFi usage patterns. Continuous WiFi transmission consumes approximately 80-160mA, providing 6-12 hours on a 1000mAh battery. Implementing sleep modes between WiFi transmissions extends battery life to weeks or months. For example, transmitting sensor data every 10 minutes with 1-second WiFi active time reduces average current to 10-20mA, enabling months of operation on standard lithium batteries.
What is the maximum current draw from GPIO pins?
Each GPIO pin can source or sink maximum 40mA, with total GPIO current limit of 1200mA across all pins. For driving high-current loads like motors or high-brightness LEDs, use external transistors, MOSFETs, or relay modules connected via GPIO pins rather than direct connection to prevent damage to the microcontroller.
Is this board suitable for production deployments or only prototyping?
The M5 Stack ATOM Lite is suitable for both prototyping and production deployments. Its industrial-grade ESP32 processor, robust power management, and wide operating temperature range (-40 to 85°C) support production use. However, implement proper enclosure, EMI shielding, and watchdog timers for reliable long-term operation in harsh environments.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy M5 Stack ATOM Lite ESP32 Development Kit Online in India
Purchase the M5 Stack ATOM Lite ESP32 Development Kit online at
M5 Stack ATOM Lite ESP32 Development Kit
The M5 Stack ATOM Lite is a compact ESP32-based microcontroller development board featuring a 32-bit dual-core processor running at 240MHz with integrated WiFi and Bluetooth connectivity, designed for rapid IoT prototyping and embedded systems development. Professional IoT engineers, embedded systems developers, and makers leverage this platform to build smart home solutions, industrial monitoring systems, and wireless sensor networks with minimal footprint and power consumption. This development kit solves the challenge of creating connected devices quickly by providing a complete hardware platform with pre-loaded bootloader, extensive peripheral support, and seamless integration with the Arduino IDE and MicroPython environments.
Product Overview
The M5 Stack ATOM Lite ESP32 Development Kit is built around the Espressif ESP32 microcontroller, featuring a dual-core 32-bit processor architecture that enables simultaneous execution of WiFi/Bluetooth stack and user application code without performance degradation. The board integrates 4MB of flash memory for program storage, 520KB of SRAM for runtime operations, and multiple peripheral interfaces including SPI, I2C, UART, and GPIO pins. The ultra-compact form factor (24x24mm) makes it ideal for space-constrained applications while maintaining full compatibility with the broader M5 Stack ecosystem through its Groove connectors for rapid sensor and actuator integration.
What distinguishes the ATOM Lite from competing ESP32 boards is its optimized power management architecture with deep sleep modes consuming as low as 10uA, making it suitable for battery-powered IoT deployments. The integrated USB Type-C interface provides convenient programming and power delivery, while the onboard RGB LED and button enable immediate user feedback without additional components. The board ships with MicroPython pre-loaded, allowing developers to start coding Python scripts immediately without complex firmware flashing procedures, significantly accelerating development cycles for rapid prototyping and educational applications.
Key Specifications
| Specification | Details |
| Product Type | ESP32 Microcontroller Development Board |
| Brand | M5 Stack |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Processor | Espressif ESP32 Dual-Core 32-bit, 240MHz |
| Flash Memory | 4MB SPI Flash |
| RAM | 520KB SRAM |
| Connectivity | WiFi 802.11 b/g/n, Bluetooth 4.2 LE |
| Power Supply | USB Type-C 5V, 500mA typical |
| Operating Voltage | 3.3V logic level |
| GPIO Pins | 25 programmable GPIO pins |
| Interfaces | SPI, I2C, UART, ADC, PWM, Capacitive Touch |
| Dimensions | 24 x 24 x 13mm |
| Weight | 3 grams |
Key Features
- Ultra-Compact Form Factor: 24x24mm size enables integration into space-constrained IoT devices, wearables, and portable applications without sacrificing processing power or connectivity options
- Dual-Core Processing: 240MHz dual-core architecture allows simultaneous WiFi/Bluetooth stack operation and user application execution, preventing communication interruptions during computational tasks
- Pre-Loaded MicroPython: Ships with MicroPython firmware eliminating initial setup complexity, enabling developers to write and test Python scripts immediately via USB serial connection
- Integrated RGB LED and Button: Built-in programmable RGB LED and user button provide immediate feedback mechanisms and input handling without requiring external components
- Groove Connector Support: Compatible with M5 Stack Groove ecosystem enabling quick connection of sensors, displays, and actuators for rapid system integration and modular development
- Low Power Consumption: Deep sleep mode draws only 10uA enabling battery-powered deployments with extended operational lifetime, ideal for remote monitoring and wireless sensor applications
- USB Type-C Interface: Modern USB-C connector provides convenient power delivery and programming without proprietary cables, supporting standard USB power banks and chargers
Applications and Use Cases
- IoT Sensor Networks: Deploy distributed temperature, humidity, and air quality monitoring systems across buildings with WiFi connectivity for real-time cloud data transmission and analytics
- Smart Home Automation: Create compact WiFi-enabled controllers for lights, switches, and appliances integrating with popular platforms like Home Assistant, Blynk, and MQTT brokers for centralized home management
- Wearable Electronics: Develop fitness trackers, health monitoring devices, and smartwatch prototypes leveraging the minimal footprint and Bluetooth connectivity for smartphone integration
- Industrial IoT and Predictive Maintenance: Monitor equipment vibration, temperature, and operational parameters with remote data logging and alert generation for condition-based maintenance scheduling
- Educational Robotics: Build autonomous robots, drone controllers, and robotic arms with WiFi-enabled coordination between multiple units for collaborative learning in STEM education programs
- Environmental Monitoring Stations: Create portable weather stations and air quality monitors with cloud connectivity for environmental research, urban planning, and pollution tracking applications
How to Use
To begin using the M5 Stack ATOM Lite, connect the device to your computer via USB Type-C cable. The board comes pre-loaded with MicroPython, allowing immediate access to the REPL (Read-Eval-Print Loop) serial interface using tools like PuTTY, minicom, or the Arduino IDE serial monitor at 115200 baud rate. Write Python scripts directly in the REPL for interactive testing, or create .py files and upload them to the device's flash memory for persistent execution. For Arduino IDE users, install the ESP32 board package via the Boards Manager, select M5Stack-Core-ESP32 as your board, and compile C/C++ sketches with full access to all GPIO pins, ADC channels, and communication interfaces.
Leverage the integrated RGB LED by importing the onboard LED module and controlling color values through PWM registers, or use the capacitive touch button for user input detection triggering WiFi connections or sensor readings. For wireless communication, utilize the built-in WiFi and Bluetooth libraries to connect to networks, transmit sensor data to cloud platforms like Blynk or ThingSpeak, or establish peer-to-peer communication with other ESP32 devices. The Groove connector on the device accommodates standard M5 Stack modules like environmental sensors, OLED displays, and relay modules, enabling rapid hardware expansion without soldering. Always configure appropriate deep sleep modes in battery-powered applications using esp_deep_sleep_start() function to maximize operational lifetime, and implement OTA (Over-The-Air) firmware updates for remote device management in deployed installations.
Frequently Asked Questions
What is the difference between M5 Stack ATOM Lite and ATOM Matrix?
The ATOM Lite features a single Groove connector for modular sensor expansion, while ATOM Matrix includes a 5x5 RGB LED matrix for visual feedback and animations. ATOM Lite is ideal for minimal-footprint applications requiring basic connectivity, whereas ATOM Matrix suits projects needing visual indicators or LED-based interfaces. Both share identical processor specifications and power characteristics.
Can I use this board with Arduino IDE or must I use MicroPython?
The M5 Stack ATOM Lite supports both Arduino IDE and MicroPython. While it ships pre-loaded with MicroPython for immediate Python development, you can install the ESP32 board package in Arduino IDE and compile C/C++ sketches with identical functionality. Choose based on your programming preference and project requirements, as both environments have full access to hardware peripherals.
How long can this device run on a battery with WiFi enabled?
Battery life depends on WiFi usage patterns. Continuous WiFi transmission consumes approximately 80-160mA, providing 6-12 hours on a 1000mAh battery. Implementing sleep modes between WiFi transmissions extends battery life to weeks or months. For example, transmitting sensor data every 10 minutes with 1-second WiFi active time reduces average current to 10-20mA, enabling months of operation on standard lithium batteries.
What is the maximum current draw from GPIO pins?
Each GPIO pin can source or sink maximum 40mA, with total GPIO current limit of 1200mA across all pins. For driving high-current loads like motors or high-brightness LEDs, use external transistors, MOSFETs, or relay modules connected via GPIO pins rather than direct connection to prevent damage to the microcontroller.
Is this board suitable for production deployments or only prototyping?
The M5 Stack ATOM Lite is suitable for both prototyping and production deployments. Its industrial-grade ESP32 processor, robust power management, and wide operating temperature range (-40 to 85°C) support production use. However, implement proper enclosure, EMI shielding, and watchdog timers for reliable long-term operation in harsh environments.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy M5 Stack ATOM Lite ESP32 Development Kit Online in India
Purchase the M5 Stack ATOM Lite ESP32 Development Kit online at