Waveshare ESP32-S3 With 3.49inch IPS Capacitive Touch Display 172 × 640
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Waveshare ESP32-S3 With 3.49inch IPS Capacitive Touch Display 172 × 640
The ESP32-S3 3.49inch Touch LCD Development Board is a high-performance, highly integrated solution featuring a 3.49-inch IPS capacitive touch display. It includes QSPI display connectivity, audio input/output capabilities, and supports AI interaction and offline voice control.
Version Options
This development board is available in several configurations to suit your project needs:
ESP32-S3-Touch-LCD-3.49
Case A version, comes with a 18650 Lithium battery (can be installed inside the case)
ESP32-S3-Touch-LCD-3.49-EN
Case A version, without battery
ESP32-S3-Touch-LCD-3.49B
Case B version, comes with a 3.7V Lithium polymer battery (can be installed inside the case)
ESP32-S3-Touch-LCD-3.49B-EN
Case B version, without battery
LCD Parameters
| Display Panel | LCD | Display Size | 3.49 inch |
|---|---|---|---|
| Resolution | 172 × 640 | Display Colors | 16.7M |
| Brightness | 350 cd/m2 | Contrast Ratio | 1200:1 |
| Display Interface | QSPI | Driver IC | AXS15231B |
| Touch Interface | I2C | Touch Type | Capacitive touch |
Key Features
The ESP32-S3-Touch-LCD-3.49 is a high-performance, highly integrated microcontroller development board designed by Waveshare. It features an onboard 3.49-inch capacitive touch IPS display, a highly integrated power management IC, a 6-axis IMU (3-axis accelerometer and 3-axis gyroscope), an RTC chip, a low-power audio codec IC, and an echo cancellation circuit. These components facilitate rapid development and integration into products.
- Equipped with an ESP32-S3R8 Xtensa 32-bit LX7 dual-core processor, operating up to 240MHz.
- Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with an onboard antenna.
- Built-in 512KB of SRAM and 384KB ROM, with onboard 8MB PSRAM and an external 16MB Flash memory.
- Onboard 3.49-inch IPS capacitive touch display for clear color picture display, with 172 × 640 resolution and 16.7M colors.
- Equipped with a dual microphone array with noise reduction and echo cancellation circuit, suitable for accurate speech recognition and near/far-field wake-up.
- Built-in AXS15231B LCD & touch controller, using QSPI and I2C interfaces for communication respectively.
- Onboard QMI8658 6-axis IMU (3-axis accelerometer and 3-axis gyroscope) for detecting motion gestures, counting steps, etc.
- Onboard PCF85063 RTC chip for Real-Time Clock functionality.
- Onboard PWR and BOOT programmable buttons for easy custom function development.
- Onboard 3.7V MX1.25 Lithium battery recharge/discharge header or 18650 Lithium battery holder.
- Onboard TF card slot for extended storage and fast data transfer, suitable for applications such as data recording and media playback, simplifying circuit design.
- Reserved 22PIN 2.54mm pitch through-hole pads for easy connection to external modules or functional expansion, enhancing development flexibility.
Onboard Audio Codec
Supports high-quality audio processing, providing clear and high-fidelity audio input and output for your projects.
Supports AI Speech Interaction
Allows access to online large model platforms such as DeepSeek, Doubao, etc., expanding the capabilities of your AI-powered applications.
IPS Display Panel
Experience excellent display performance with 16.7M colors and a wide viewing angle, ensuring vibrant and clear visuals.
Capacitive Touch
Ideal for developing various smart devices, enabling intuitive and responsive human-machine interaction.
Two Case Options
Choose between two case options to best suit your application needs.
For reference only, please refer to the package content for the detailed part list.
Supports ESP-IDF, Arduino IDE
Benefit from a comprehensive SDK, rich development resources, and tutorials to help you easily get started with your projects using ESP-IDF or Arduino IDE.
Wi-Fi and BLE 5 Support
The ESP32-S3 integrates 2.4 GHz Wi-Fi (802.11 b/g/n) with 40 MHz bandwidth support. Its Bluetooth Low Energy subsystem supports Bluetooth 5 (LE) and Bluetooth Mesh, offering robust wireless connectivity.
What's On Board
-
ESP32-S3R8
Wi-Fi and Bluetooth SoC, up to 240MHz operating frequency, with onboard 8MB PSRAM -
Onboard antenna
supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) -
TCA9554PWR
8-bit I2C GPIO expansion chip -
W25Q128JVSI
16MB Flash memory -
ES8311 DAC audio encoding chip
high-performance, low-power audio DAC -
ES7210 ADC audio decoding chip
high-performance, low-power audio ADC, supports multiple microphone inputs -
QMI8658
3-axis gyroscope and 3-axis accelerometer, suitable for applications such as attitude sensing and motion recognition -
Dual microphone array design
dual-digital microphone, supports more advanced voice interaction functions
-
TF card slot
supports FAT32-formatted TF card for data expansion -
RESET button (back side)
press the BOOT, then click the RESET button to enter download mode -
PWR power button (back side)
Enables power control via software configuration when using Lithium battery for power supply -
BOOT button (back side)
press the BOOT, then click the RESET button to enter download mode -
MX1.25 2PIN speaker header (back side)
audio signal output, for connecting external speaker -
IPEX1 connector
for connecting external antenna, enabled via resoldering an onboard resistor -
22PIN 2.54mm pitch through-hole pads
for connecting external modules and enabling functional expansion -
Type-C port
for program burning and log printing -
PCF85063
RTC clock chip, supports time retention
Outline Dimensions
ESP32-S3-Touch-LCD-3.49
ESP32-S3-Touch-LCD-3.49B
1. General Shipping Information
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2. Shipping Options for Germany, EU* countries and US
(For Products in Munich Warehouse, Long Beach Warehouse)
2.1 Orders with a value not exceeding €5:
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| Shipping Options | Germany | EU* |
|---|---|---|
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Deutsche Post |
€6 Arrive in 3-4 Business Days |
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| Shipping Options | Continental U.S. | Non-Continental U.S. |
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2.2 Shipping options for an order value between €5 and €30 inside Germany, €5 and €50 inside the EU, or €5 and €45 in the U.S.:*
Shipping Options:
| Shipping Options | Germany | EU* |
|---|---|---|
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Deutsche Post |
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| Shipping Options | Continental U.S. | Non-Continental U.S. |
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USPS Ground Advantage |
€4.95 Arrive in 3-7 Business Days |
€6.95 Arrive in 5-9 Business Days |
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UPS Express |
€11.95 Arrive in 2-4 Business Days |
€13.95 Arrive in 3-7 Business Days |
2.3 Free shipping options for an order value of above €30 inside Germany, €50 inside the EU* or €45 in US :
| Free Shipping Options | Germany | EU* |
|---|---|---|
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Deutsche Post |
Free Above €30 | Free Above €50 |
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DHL Paket |
+ €2 for Above €30 / Free Above €60 | + €8 for Above €50 / Free Above €80 |
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DHL Express |
+ €10 for Above €30 | + €60 for Above €50 |
| Free Shipping Options | Continental U.S. | Non-Continental U.S. |
|---|---|---|
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USPS Ground Advantage |
Free above €45 | Free above €60 |
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UPS Express |
+ € 8.95 for Above €45 | + € 11.95 for Above €45 |
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Certain EU Countries are not included in our EU Zone definition: United Kingdom (excluding Ireland), Switzerland, Liechtenstein, Vatican City, Albania, Belarus, Norway, Ukraine, and Iceland. For the above countries, the International Shipping Rule applies.
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2.4 Shipping Options for International Countries:
(via Deutsche Post or YunExpress)
| Order Amount | International |
|---|---|
| €0 - €15 | €8 |
| €15 - €30 | €7 |
| €30 - €50 | €6 |
| €50 and above | €4 |
Important Notice:
- Please verify the inventory location on the product page before placing your order to confirm delivery timeframes.
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- If you place an order with products from both Munich and Shenzhen warehouses, we will first ship the products in the Munich warehouse, and then send the remaining products to you when we receive them from Shenzhen.
3. International Warehouse
3.1 German Warehouse
3.2 US Warehouse
3.3 Chinese Warehouse
4. Customs and Taxes
4.1 How are customs handled by OpenELAB for import or export?
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4.3 What kind of fee will be charged except VAT?
Effective Date: August 7, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 30 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
3. Returns & Refunds
If you're not satisfied with your purchase, you may be eligible for a return or exchange:
- Return for Refund: Within 15 days of receipt (unopened).
- Return for Replacement: Within 30 days of receipt (damaged or defective).
- Exchange Window: Up to 30 days from receipt.
Please email us at info@openelab.io for a return authorization before sending anything back.
Return Conditions
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Shipping & Fees
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Payment Platform Fees
For all refunds requested due to customer reasons, a standard service fee will be deducted from the refund amount, which is charged by the payment platforms. The specific fees are as follows:
Shopify Payments: 2.9% + €0.3
PayPal: 4.4%
