Waveshare has recently released ESP32-S3-Touch-LCD-4B, an ESP32-S3-based smart home controller which Waveshare is also calling ESP32-S3 Smart 86 Box. Engineers designed it around the ESP32-S3 SoC for smart home, industrial control, and HMI applications.
The board includes a 4-inch 480×480 IPS touch display supporting 5-point capacitive touch with built-in 16MB Flash, 8MB PSRAM, and a range of onboard peripherals including an ES8311 audio codec, ES7210 echo cancellation chip, QMI8658 6-axis IMU, AXP2101 power management IC, and PCF85063 RTC. It supports AI voice interaction via platforms like Doubao and DeepSeek, features dual USB Type-C ports for programming and power, microphone and speaker interfaces, and lithium battery charging support. The device also includes an I²C-based touch controller, GPIO expansion (TCA9554PWR), and flexible low-power control functions, making it ideal for developing smart switches, home terminals, and industrial IoT dashboards.
ESP32-S3-Touch-LCD-4B Hardware Overview
ESP32-S3-Touch-LCD-4B Main Hardware
The ESP32-S3 Smart 86 Box supports various software development environments and tools, including ESP-IDF, Arduino, and MicroPython. It’s fully compatible with LVGL for building responsive graphical interfaces on the 4-inch capacitive touch display. The board also supports popular AI frameworks, including Doubao and DeepSeek for speech-enabled applications. aveshare provides detailed documentation, example code, and drivers through its official Wiki page.
Previously, we have written about various ESP32-S3-based products, including Espressi EchoEar v1.2, the LILYGO T-Display Bar, the ESP32-S3 SenseCAP Watcher, and others. You can check those out if you are interested in other ESP32-S3-based products.
The ESP32-S3 Smart 86 Box is available on AliExpress for $37.96. It’s also available on Amazon for $44.15. You can also get it directly from the Waveshare store for $33.99.
Niladri Chowdhury 
Sayantan Nandy