Home Waveshare ESP32-S3 A7670E 4G Development Board

Waveshare ESP32-S3 A7670E 4G Development Board

Sale price $57.85
SKU: Waveshare-26635

📦 Location of the warehouse: China

Free Shipping from $50 in the US, $70 for non-continental US

- US Delivery Time: 2~7 Business days.

- Non-Continental US Delivery Time: 3~9 working days.

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Guarantee & Return Policy

Effective Date: December 10, 2025

At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.

1. Warranty Policy

A. Standard Limited Warranty (Global & US)

For customers in the United States, Asia, and other non-EU regions:

  • Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.

  • Coverage: This warranty covers defects in material and workmanship under normal use.

  • Resolution: We will repair or replace defective units at no charge.

B. Statutory Rights for EU/UK Customers (EU Compliance)

If you are a consumer residing in the European Union or the UK purchasing from our global site:

  • Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.

  • Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.

C. Warranty Exclusions (Applies to ALL Regions)

Warranty coverage is VOID if the damage is caused by:

  1. Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.

  2. Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.

  3. Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).

  4. Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.

Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.

2. Return & Refund Policy

A. Return Window

  • Standard: You may request a return within 31 days of receiving your order.

  • EU Customers: You have the statutory right to withdraw from the contract within 14 days of receipt without giving a reason.

B. Refund Conditions & Restocking Fees

To protect against policy abuse, the refund amount is strictly determined by the condition of the returned item.

1. Full Refund (100%)

  • The item is Brand New, Unopened, and Unused.

  • The original packaging is intact and sealed.

  • All accessories are present.

2. Partial Refund (Restocking Fee / Value Depreciation)
If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (or "Compensation for Loss of Value" for EU customers) from the refund.
Deductions apply if:

  • Signs of Use: Visible scratches, mounting marks on screw holes, or fingerprints.

  • Damaged Packaging: Original box is torn, written on, or missing.

  • Technical Modification: The device has been powered on, programmed/flashed, or soldered.

  • Broken Seals: Anti-static bags or security seals have been opened.

Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.

C. Shipping Costs

  • Defective / Wrong Item: OpenELAB covers the return shipping cost.

  • Customer Remorse (Changed Mind / Ordered Wrong Item): The customer is responsible for all return shipping costs to our designated return center (located in the US, Germany, or China, depending on your region). Original shipping fees are non-refundable unless required by local law.

3. Return Process (RMA)

To ensure a smooth return process, please follow these steps:

  1. Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.

  2. RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.

  3. Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).

  4. Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.
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Waveshare ESP32-S3 A7670E 4G Development Board

Waveshare ESP32-S3 A7670E 4G Development Board

$57.85

Waveshare ESP32-S3-A7670E-4G is a versatile and high-performance microcontroller development board designed for advanced IoT applications. It features a built-in A7670E 4G communication module, an OV-series camera interface, TF card slot, RGB LED, 18650 battery holder (battery not included), battery voltage monitoring IC, solar charging interface, and a wide range of peripheral interfaces.

At its core, the board integrates the ESP32-S3R2 chip, which includes low-power 2.4GHz WiFi and Bluetooth 5.0 LE, along with 16MB external Flash and 2MB PSRAM. It also supports hardware encryption, a random number generator, HMAC, and digital signature modules, ensuring robust IoT-grade security.

To enable mobile connectivity, the board is equipped with the A7670E Cat-1 4G module, supporting LTE and 2G networks, GNSS positioning (GPS, BeiDou, GLONASS), voice calls, and SMS. A USB switching IC and DIP switches allow seamless toggling between the ESP32 and A7670E USB interfaces, making it easy to connect to a PC for dial-up networking or module debugging.

The board supports USB and solar charging, with real-time battery capacity monitoring and protection circuitry. The 18650 battery holder (battery not included) also supports external 3.7V lithium batteries via the VBAT pin header, with reverse polarity protection.

It offers rich expansion options, including a 38PIN header, camera interface, TF card slot, and USB port. Multiple DIP switches allow you to control camera power, switch USB channels, and selectively power down circuits to reduce energy consumption.

The kit includes a high-precision GNSS ceramic antenna, OV2640/OV5640 camera, mini speaker, and acrylic case, making it ideal for rapid development of smart home systems, outdoor monitoring, or portable 4G WiFi solutions.

Waveshare provides comprehensive online resources, including tutorials and demo projects for 4G networking and IoT applications, helping developers get started quickly and efficiently.

 

Specifications

Communication Parameters
Frequency Band LTE-FDD: B1, B3, B5, B7, B8, B20
Data Transmission ≤5Mbps(UL)
≤10Mbps(DL)
GNSS GPS, BeiDou, GLONASS
Operating Parameters
Power supply method USB port, 18650 lithium battery holder (18650 battery is NOT included), pin header
Power input 5V (USB port / 5V pin header)
3.7~4.2V (18650 lithium battery holder / VBAT pin header)
Logic Level 3.3V


Multi Band support of LTE Cat-1/2G

Multi Band and Multi regions Support, mainly applicable in Europe, Southeast Asia, West Asia, Africa, China, South Korea


* Please confirm the supported bands according to your local service provider


Provides portable 4G WiFi solution

ESP32-S3 is connected to the A7670E via USB to enable 4G networking while simultaneously activating WiFi AP hotspot, allowing smartphones or other WiFi terminals to connect and access network

Supports Windows/Linux Dail-up Internet

Onboard USB switching IC and DIP switch, for switching to use the USB interface of A7670E, suitable for connecting with PC for dial-up internet or debugging of A7670E module

telephone call & SMS Support

Making telephone call or sending SMS by AT commands, with onboard microphone and Speaker

Supports image recognition

Onboard 24PIN camera interface, comes with OV2640 / OV5640 camera
Compatible with the ESP32-Camera framework, Suitable for facial recognition

Supports charging via solar panel
or USB port

Onboard lithium battery charging, solar charging, power management, battery capacity measurement, and related protection circuits, supports USB and solar charging with real-time battery capacity measurement

The solar panel is NOT included, it is recommended to purchase Solar Panel (5.5V 6W), Solar Panel (6V 5W), and Solar Panel (18V 10W).
GNSS positioning

Supports GPS, BeiDou, GLONASS positioning

Application Example

provides multiple networking demos with Waveshare.cloud, using the lightweight MQTT protocol to achieve data visualization service


Waveshare.cloud Support

provides tutorial and demo for quick start of smart IoT solutions, with large-screen Data Visualization display to meet various application scenarios

Smart garden solutions:
The ESP32-S3-A7670E-4G can report various sensor data of the garden through MQTT to remotely control device ON/OFF, irrigation, fertilization, and so on.


Server Performance Cloud Monitoring:
The ESP32-S3-A7670E-4G can report various performance parameters of the Raspberry Pi server through MQTT, and monitor the operation status in real-time through the cloud platform.


IoT GPS Mobile Positioning:
The ESP32-S3-A7670E-4G can regularly report the data of the GPS positioning module through MQTT to realize mobile detection, animal or device positioning and tracking, etc.

Application Scenarios
What's On Board
  1. ESP32-S3R2
  2. A7670E-FASE
  3. EA3036C
    DC-DC 3-ch power output
  4. ETA6098
    Battery charging IC
  5. CN3791
    Solar power charging IC
  6. MAX17048G
    Battery voltage measurement IC
  7. CH343
    UART to USB IC
  8. CH334
    USB HUB
  9. W25Q128JVSIQ
    External 16MB Flash
  10. FSUSB42UMX
    USB switching IC
  11. TXB0104PWR
    Voltage translator
  12. Camera 24PIN interface
    Compatible with cameras such as OV2640 / OV5640
  13. TF Card Slot
  14. USB Type-C port
    Onboard CH343 And CH334, supports connecting to UART and USB of the ESP32-S3
    Onboard USB switching IC and DIP switch for switching to use the USB interface of A7670E
  15. RESET button
  16. BOOT button
  17. Nano SIM card slo
  1. Solar panel input interface
    for connecting to 5V/6V/9V/12V/18V solar panel
  2. Onboard antenna
  3. ESP32-S3 WiFi connector (IPEX 1)
    using onboard ceramic antenna by default, supports connecting to external WiFi antenna by modifying solder pad
  4. GNSS connector (IPEX 1)
  5. LTE connector (IPEX 1)
  6. WS2812B
    RGB LED
  7. Power indicator
  8. Battery reverse warning indicator
  9. Solar power input indicator
  10. Network status indicator
  11. Solar power input voltage selection
    for setting solar panel input voltage:
    5V level by default, for connecting with 5.5V / 6V solar power panel, supports modifying solder pads for 9V/12V/18V solar panels
  12. SY8105IADC
    External input DC-DC
  13. DIP Switch
    CAM: for turning on/off the camera
    HUB: for controlling the power supply of USB HUB driver circuit
    4G: for controlling the power supply of A7670E module
    USB: for switching to the USB channel of A7670E module.
  14. Battery power supply on/off
  15. 18650 battery holder
  16. Microphone input
  17. Speaker output


Pinout Definition


Outline Dimensions

1. General Shipping Information

  • We provide premium shipping methods with a tracking number for each order.
  • Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
  • Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
  • We can ship all in-stock orders within 1 business day as your order has been confirmed.
  • All items are inspected before dispatch and are carefully hand-packed.
  • With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.

 

2. Shipping Options & Rates (United States)

(For Products in the US Warehouse & Global Warehouse)

2.1 Continental U.S. (50 States)

Shipping Method Order Value Cost Est. Delivery
USPS Ground Advantage $0.00 - $5.00 $9.99 3-7 Business Days
USPS Ground Advantage $5.00 - $50.00 $5.99 3-7 Business Days
USPS Ground Advantage Over $50.00 Free 3-7 Business Days
USPS Priority Mail
(Faster Option)		 $0.00 - $50.00 $19.99 1-4 Business Days
USPS Priority Mail Over $50.00 $17.59 1-4 Business Days

  

2.2 Non-Continental U.S.

(Includes Alaska, Hawaii, Puerto Rico, Guam, Virgin Islands, etc.)

Shipping Method Order Value Cost Est. Delivery
USPS Ground Advantage $0.00 - $5.00 $9.99 5-9 Business Days
USPS Ground Advantage $5.00 - $70.00 $7.99 5-9 Business Days
USPS Ground Advantage Over $70.00 Free 5-9 Business Days

 

Important Notice:

  • Before placing your order, please check the inventory location on the product page to confirm the delivery timeframes.
  • For products stored in the Global Warehouse (Shenzhen), we will ship them directly from China.
  • If you place an order for products from both the U.S. warehouse and the Global warehouse, we will ship your order separately: the products from the Global warehouse will be sent from China, and the products from the U.S. warehouse will be sent from the U.S. warehouse.

   

3. Warehouse Locations

Our products are stored in both our U.S. and Global warehouses to provide more flexible logistics solutions. On each product's description page, we indicate the specific warehouse location.

3.1 U.S. Warehouse

Located in Dover, Delaware (19901).
For products stored here, we use USPS for shipping. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days.

3.2 Global Warehouse (China)

Located in Shenzhen, Guangdong.
For orders shipping from our Global Warehouse, we typically use YunExpress. Given the complexities of international shipping, the estimated delivery time is around 10 business days, though this may vary due to customs processes.

To ensure that your order is delivered within your desired timeframe, we recommend reviewing the warehouse information provided on the product pages before placing your order.   

 

4. Customs and Taxes

Effective Date: December 10, 2025

At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.

1. Warranty Policy

A. Standard Limited Warranty (Global & US)

For customers in the United States, Asia, and other non-EU regions:

  • Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.

  • Coverage: This warranty covers defects in material and workmanship under normal use.

  • Resolution: We will repair or replace defective units at no charge.

B. Statutory Rights for EU/UK Customers (EU Compliance)

If you are a consumer residing in the European Union or the UK purchasing from our global site:

  • Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.

  • Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.

C. Warranty Exclusions (Applies to ALL Regions)

Warranty coverage is VOID if the damage is caused by:

  1. Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.

  2. Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.

  3. Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).

  4. Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.

Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.

2. Return & Refund Policy

A. Return Window

  • Standard: You may request a return within 31 days of receiving your order.

  • EU Customers: You have the statutory right to withdraw from the contract within 14 days of receipt without giving a reason.

B. Refund Conditions & Restocking Fees

To protect against policy abuse, the refund amount is strictly determined by the condition of the returned item.

1. Full Refund (100%)

  • The item is Brand New, Unopened, and Unused.

  • The original packaging is intact and sealed.

  • All accessories are present.

2. Partial Refund (Restocking Fee / Value Depreciation)
If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (or "Compensation for Loss of Value" for EU customers) from the refund.
Deductions apply if:

  • Signs of Use: Visible scratches, mounting marks on screw holes, or fingerprints.

  • Damaged Packaging: Original box is torn, written on, or missing.

  • Technical Modification: The device has been powered on, programmed/flashed, or soldered.

  • Broken Seals: Anti-static bags or security seals have been opened.

Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.

C. Shipping Costs

  • Defective / Wrong Item: OpenELAB covers the return shipping cost.

  • Customer Remorse (Changed Mind / Ordered Wrong Item): The customer is responsible for all return shipping costs to our designated return center (located in the US, Germany, or China, depending on your region). Original shipping fees are non-refundable unless required by local law.

3. Return Process (RMA)

To ensure a smooth return process, please follow these steps:

  1. Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.

  2. RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.

  3. Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).

  4. Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.