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Wemqs WiFi and Bluetooth Battery ESP32 Development Board With 18650 Lithium Battery Shiel
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Wemqs WiFi and Bluetooth Battery ESP32 Development Board With 18650 Lithium Battery Shield
The Wemqs WiFi and Bluetooth Battery ESP32 Development Board is a comprehensive IoT prototyping platform that integrates dual wireless connectivity with built-in lithium battery management, enabling developers to create portable, battery-powered IoT applications without external power infrastructure. Professional embedded systems engineers, IoT solution architects, and electronics hobbyists use this board to rapidly prototype connected devices ranging from remote sensors to wearable applications. This product solves the critical challenge of power management in wireless IoT projects by combining the ESP32's powerful dual-core processor with an integrated 18650 lithium battery shield, eliminating the need for separate power conditioning circuits and reducing development time significantly.
Product Overview
The Wemqs ESP32 Development Board represents a fully integrated solution for battery-powered IoT applications. At its core lies the ESP32 microcontroller, a dual-core processor running at 240 MHz with 520 KB of SRAM, delivering sufficient computational power for complex wireless protocols and sensor data processing. The board features integrated WiFi 802.11 b/g/n and Bluetooth 4.2 LE connectivity, allowing simultaneous dual-mode wireless communication. The critical innovation is the integrated 18650 lithium battery shield, which provides intelligent power management including charging circuit, battery voltage monitoring, and protection against over-charge and over-discharge conditions. This eliminates the need for external power management integrated circuits and simplifies the overall circuit design.
The architecture supports multiple power modes including active operation at 80-240 MHz, modem sleep at 10 mA, light sleep at 0.8 mA, and deep sleep at 10 microamps, making it exceptionally suitable for battery-constrained applications requiring extended operational life. The board includes 34 GPIO pins with support for SPI, I2C, UART, ADC, and DAC interfaces, providing extensive connectivity options for peripheral integration. The integrated lithium battery management circuit handles charging from USB or external DC source while simultaneously powering the ESP32, enabling continuous operation during charging cycles. Built-in protection circuits prevent reverse polarity damage and provide thermal management for safe battery operation.
Key Specifications
| Specification | Details |
| Product Type | WiFi and Bluetooth Development Board with Battery Management |
| Brand | Wemqs |
| 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 |
| Microcontroller | ESP32 Dual-Core 240 MHz |
| RAM | 520 KB SRAM |
| Flash Memory | 4 MB |
| WiFi | 802.11 b/g/n 2.4 GHz |
| Bluetooth | Bluetooth 4.2 LE |
| Battery Support | 18650 Lithium Cell |
| GPIO Pins | 34 pins with multiple protocols |
| Operating Voltage | 3.3V to 5V USB or Battery |
| Power Consumption | 80 mA active, 10 uA deep sleep |
Key Features
- Integrated 18650 Lithium Battery Shield with automatic charging circuit and over-charge protection for safe extended operation
- Dual-core ESP32 processor running at 240 MHz with 520 KB RAM enabling complex wireless protocol implementation and real-time sensor processing
- Simultaneous WiFi and Bluetooth connectivity allowing hybrid wireless architectures for cloud integration and local device communication
- Multiple power modes including deep sleep at 10 microamps extending battery life to months for low-duty-cycle applications
- 34 GPIO pins with SPI, I2C, UART, ADC, and DAC support for comprehensive peripheral integration without external adapters
- USB-C charging port enabling continuous operation while charging, eliminating downtime in production deployments
- Built-in battery voltage monitoring circuit for real-time state-of-charge reporting to applications
- Reverse polarity and thermal protection circuits safeguarding against user errors and battery faults
Applications and Use Cases
- Remote Environmental Monitoring Systems utilizing WiFi for cloud data transmission and Bluetooth for local gateway communication in agricultural and industrial IoT deployments
- Wearable Health Tracking Devices leveraging the ultra-low deep sleep power consumption and integrated battery management for multi-day operational life without charging
- Smart Home Automation Nodes serving as WiFi-enabled sensors and actuators with battery backup capability for critical home security applications
- Portable Data Logging Instruments combining on-board ADC capabilities with battery power for field measurements in research and industrial applications
- Wireless Sensor Networks implementing mesh topologies using Bluetooth for inter-node communication while maintaining WiFi uplink for cloud synchronization
- Battery-Powered Gateway Devices bridging legacy Bluetooth sensors to WiFi infrastructure without external power supply requirements
How to Use
Begin by installing the CH340 USB-to-UART driver on your development machine, then connect the Wemqs board via USB-C cable. Open the Arduino IDE and install the ESP32 board support package through the Boards Manager, selecting the generic ESP32 board type. Insert a fully charged 18650 lithium cell into the battery shield socket, ensuring correct polarity alignment with the marked positive and negative terminals. The board will automatically detect the battery and begin charging if connected to USB power while simultaneously powering the ESP32 microcontroller. Configure your WiFi credentials and Bluetooth service UUIDs in the Arduino sketch using the built-in WiFiMulti and BluetoothSerial libraries.
For optimal battery performance, implement power mode management by calling esp_light_sleep_start() during inactive periods and esp_deep_sleep_start() for extended dormancy between sensor readings. Monitor battery voltage using the ADC pin connected to the battery monitoring circuit, implementing low-battery warnings when voltage drops below 3.0V to prevent data corruption. The integrated charging circuit handles all power sequencing automatically, but ensure the USB power supply provides at least 500 mA at 5V for reliable charging. Test your application with the battery disconnected first to verify USB-powered operation, then validate battery performance with realistic duty cycles before field deployment.
Frequently Asked Questions
What is the maximum charging current and how long does a full charge take?
The integrated charging circuit provides approximately 500 mA charging current, resulting in a full charge of a typical 2600 mAh 18650 cell in approximately 5-6 hours. The charging rate is automatically managed by the protection circuit to ensure battery longevity. Charging can occur simultaneously with normal ESP32 operation, allowing the device to remain powered during the charging cycle.
How long will the battery last in deep sleep mode?
In deep sleep mode consuming approximately 10 microamps, a 2600 mAh 18650 lithium cell will provide approximately 12,000 hours or roughly 500 days of continuous deep sleep operation. Actual duration depends on the specific battery capacity and the frequency of wake cycles. For applications with periodic wake-ups, you can achieve several months of operation with just one charge by implementing efficient sleep scheduling.
Can I use this board without a battery, powered only by USB?
Yes, the board operates normally when powered exclusively through the USB-C port without any battery installed. The integrated power management circuit will bypass the battery charging circuit and supply power directly to the ESP32 microcontroller. This configuration is ideal for development and testing phases where continuous power is available.
What type of 18650 battery should I use?
Use authentic lithium-ion 18650 cells with nominal voltage of 3.7V and capacity between 2000-3500 mAh from reputable manufacturers such as Panasonic, Samsung, or LG. Avoid counterfeit batteries and always verify the battery specifications match the protection circuit requirements. The board supports both protected and unprotected cells, though protected cells provide additional safety margins.
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 certificates
- Expert Team: Our technical team validates every product before listing and provides application guidance
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp for integration and troubleshooting
- Returns: 7-day return policy on manufacturing defects only with no questions asked
Buy Wemqs WiFi and Bluetooth Battery ESP32 Development Board With 18650 Lithium Battery Shield Online in India
Purchase the Wemqs WiFi and Bluetooth Battery ESP32 Development Board With 18650 Lithium Battery Shield online at The Engineer Store, India's trusted source for genuine electronics and embedded systems components. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Wemqs WiFi and Bluetooth Battery ESP32 Development Board With 18650 Lithium Battery Shield with fast shipping and expert technical support from engineers who understand IoT applications.
Our team in Bengaluru is available 24/7 to support your journey from product selection through project completion, providing application-specific guidance and troubleshooting assistance for your battery-powered IoT initiatives.
Wemqs WiFi and Bluetooth Battery ESP32 Development Board With 18650 Lithium Battery Shield
The Wemqs WiFi and Bluetooth Battery ESP32 Development Board is a comprehensive IoT prototyping platform that integrates dual wireless connectivity with built-in lithium battery management, enabling developers to create portable, battery-powered IoT applications without external power infrastructure. Professional embedded systems engineers, IoT solution architects, and electronics hobbyists use this board to rapidly prototype connected devices ranging from remote sensors to wearable applications. This product solves the critical challenge of power management in wireless IoT projects by combining the ESP32's powerful dual-core processor with an integrated 18650 lithium battery shield, eliminating the need for separate power conditioning circuits and reducing development time significantly.
Product Overview
The Wemqs ESP32 Development Board represents a fully integrated solution for battery-powered IoT applications. At its core lies the ESP32 microcontroller, a dual-core processor running at 240 MHz with 520 KB of SRAM, delivering sufficient computational power for complex wireless protocols and sensor data processing. The board features integrated WiFi 802.11 b/g/n and Bluetooth 4.2 LE connectivity, allowing simultaneous dual-mode wireless communication. The critical innovation is the integrated 18650 lithium battery shield, which provides intelligent power management including charging circuit, battery voltage monitoring, and protection against over-charge and over-discharge conditions. This eliminates the need for external power management integrated circuits and simplifies the overall circuit design.
The architecture supports multiple power modes including active operation at 80-240 MHz, modem sleep at 10 mA, light sleep at 0.8 mA, and deep sleep at 10 microamps, making it exceptionally suitable for battery-constrained applications requiring extended operational life. The board includes 34 GPIO pins with support for SPI, I2C, UART, ADC, and DAC interfaces, providing extensive connectivity options for peripheral integration. The integrated lithium battery management circuit handles charging from USB or external DC source while simultaneously powering the ESP32, enabling continuous operation during charging cycles. Built-in protection circuits prevent reverse polarity damage and provide thermal management for safe battery operation.
Key Specifications
| Specification | Details |
| Product Type | WiFi and Bluetooth Development Board with Battery Management |
| Brand | Wemqs |
| 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 |
| Microcontroller | ESP32 Dual-Core 240 MHz |
| RAM | 520 KB SRAM |
| Flash Memory | 4 MB |
| WiFi | 802.11 b/g/n 2.4 GHz |
| Bluetooth | Bluetooth 4.2 LE |
| Battery Support | 18650 Lithium Cell |
| GPIO Pins | 34 pins with multiple protocols |
| Operating Voltage | 3.3V to 5V USB or Battery |
| Power Consumption | 80 mA active, 10 uA deep sleep |
Key Features
- Integrated 18650 Lithium Battery Shield with automatic charging circuit and over-charge protection for safe extended operation
- Dual-core ESP32 processor running at 240 MHz with 520 KB RAM enabling complex wireless protocol implementation and real-time sensor processing
- Simultaneous WiFi and Bluetooth connectivity allowing hybrid wireless architectures for cloud integration and local device communication
- Multiple power modes including deep sleep at 10 microamps extending battery life to months for low-duty-cycle applications
- 34 GPIO pins with SPI, I2C, UART, ADC, and DAC support for comprehensive peripheral integration without external adapters
- USB-C charging port enabling continuous operation while charging, eliminating downtime in production deployments
- Built-in battery voltage monitoring circuit for real-time state-of-charge reporting to applications
- Reverse polarity and thermal protection circuits safeguarding against user errors and battery faults
Applications and Use Cases
- Remote Environmental Monitoring Systems utilizing WiFi for cloud data transmission and Bluetooth for local gateway communication in agricultural and industrial IoT deployments
- Wearable Health Tracking Devices leveraging the ultra-low deep sleep power consumption and integrated battery management for multi-day operational life without charging
- Smart Home Automation Nodes serving as WiFi-enabled sensors and actuators with battery backup capability for critical home security applications
- Portable Data Logging Instruments combining on-board ADC capabilities with battery power for field measurements in research and industrial applications
- Wireless Sensor Networks implementing mesh topologies using Bluetooth for inter-node communication while maintaining WiFi uplink for cloud synchronization
- Battery-Powered Gateway Devices bridging legacy Bluetooth sensors to WiFi infrastructure without external power supply requirements
How to Use
Begin by installing the CH340 USB-to-UART driver on your development machine, then connect the Wemqs board via USB-C cable. Open the Arduino IDE and install the ESP32 board support package through the Boards Manager, selecting the generic ESP32 board type. Insert a fully charged 18650 lithium cell into the battery shield socket, ensuring correct polarity alignment with the marked positive and negative terminals. The board will automatically detect the battery and begin charging if connected to USB power while simultaneously powering the ESP32 microcontroller. Configure your WiFi credentials and Bluetooth service UUIDs in the Arduino sketch using the built-in WiFiMulti and BluetoothSerial libraries.
For optimal battery performance, implement power mode management by calling esp_light_sleep_start() during inactive periods and esp_deep_sleep_start() for extended dormancy between sensor readings. Monitor battery voltage using the ADC pin connected to the battery monitoring circuit, implementing low-battery warnings when voltage drops below 3.0V to prevent data corruption. The integrated charging circuit handles all power sequencing automatically, but ensure the USB power supply provides at least 500 mA at 5V for reliable charging. Test your application with the battery disconnected first to verify USB-powered operation, then validate battery performance with realistic duty cycles before field deployment.
Frequently Asked Questions
What is the maximum charging current and how long does a full charge take?
The integrated charging circuit provides approximately 500 mA charging current, resulting in a full charge of a typical 2600 mAh 18650 cell in approximately 5-6 hours. The charging rate is automatically managed by the protection circuit to ensure battery longevity. Charging can occur simultaneously with normal ESP32 operation, allowing the device to remain powered during the charging cycle.
How long will the battery last in deep sleep mode?
In deep sleep mode consuming approximately 10 microamps, a 2600 mAh 18650 lithium cell will provide approximately 12,000 hours or roughly 500 days of continuous deep sleep operation. Actual duration depends on the specific battery capacity and the frequency of wake cycles. For applications with periodic wake-ups, you can achieve several months of operation with just one charge by implementing efficient sleep scheduling.
Can I use this board without a battery, powered only by USB?
Yes, the board operates normally when powered exclusively through the USB-C port without any battery installed. The integrated power management circuit will bypass the battery charging circuit and supply power directly to the ESP32 microcontroller. This configuration is ideal for development and testing phases where continuous power is available.
What type of 18650 battery should I use?
Use authentic lithium-ion 18650 cells with nominal voltage of 3.7V and capacity between 2000-3500 mAh from reputable manufacturers such as Panasonic, Samsung, or LG. Avoid counterfeit batteries and always verify the battery specifications match the protection circuit requirements. The board supports both protected and unprotected cells, though protected cells provide additional safety margins.
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 certificates
- Expert Team: Our technical team validates every product before listing and provides application guidance
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp for integration and troubleshooting
- Returns: 7-day return policy on manufacturing defects only with no questions asked
Buy Wemqs WiFi and Bluetooth Battery ESP32 Development Board With 18650 Lithium Battery Shield Online in India
Purchase the Wemqs WiFi and Bluetooth Battery ESP32 Development Board With 18650 Lithium Battery Shield online at The Engineer Store, India's trusted source for genuine electronics and embedded systems components. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Wemqs WiFi and Bluetooth Battery ESP32 Development Board With 18650 Lithium Battery Shield with fast shipping and expert technical support from engineers who understand IoT applications.
Our team in Bengaluru is available 24/7 to support your journey from product selection through project completion, providing application-specific guidance and troubleshooting assistance for your battery-powered IoT initiatives.