Waveshare ESP32-S3 4.2inch RLCD Development Board, 300 × 400 Resolution, Supports W-F & BLE Dual-Mode Communication and AI Voice Interaction, No Batt
Key features
- •Powerful Core & Memory: High-performance Xtensa 32-bit LX7 dual-core (240MHz max); 512KB SRAM, 384KB ROM, 16MB Flash, 8MB PSRAM for stable operation.
- •Dual-Mode Wireless & Voice Features: 2.4GHz W-F/BLE 5 (LE) with onboard antenna; dual-mic array for noise reduction, echo cancellation, and near/far-field voice wake-up.
- •Reflective Display & Expansion: 4.2-inch 300×400 RLCD (no backlight needed); 2×8PIN header and TF slot for external storage/expansion.
- •Sensing & RTC Power Management: PCF85063 RTC chip, SHTC3 temp-humidity sensor; onboard 18-650 batt holder and RTC backup header with dual power modes – batt-ery not included, customer need to purchase separately.
- •Customizable Buttons: Onboard programmable KEY/BOOT buttons for flexible function development.
Waveshare ESP32-S3 4.2inch RLCD Development Board, 300 × 400 Resolution, Supports W-F & BLE Dual-Mode Communication and AI Voice Interaction, No Batt
List Price: $62.84$56.56DEALYou Save: $6.28 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (30)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
