Product Detail | Sdgoody Sdgoody
The Home of Happy Deals.
Product Description Waveshare ESP32-S3 4.2inch RLCD Development Board, 300×400 Wi-Fi & BLE Dual-mode
Product Description
ESP32-S3 4.2inch RLCD Development Board, 300 × 400 Resolution, Supports Wi‑Fi & BLE Dual-Mode Communication and AI Voice Interaction. E-paper-like Reading Experience with faster refresh response.
Version Options
ESP32-S3-RLCD-4.2 – Comes with a 18650 Lithium Battery holder.
ESP32-S3-RLCD-4.2-EN – Without 18650 Lithium Battery.
Features
• ESP32‑S3 based RLCD AIoT development board with dual-core Xtensa LX7 processor up to 240 MHz.
• 4.2 inch reflective LCD (RLCD), 300×400 resolution, no backlight needed.
• Wi‑Fi 2.4 GHz and Bluetooth5 LE dual-mode communication.
• Onboard audio codec with dual microphones, speaker, ES7210 echo cancellation, ES8311 low‑power codec.
• Temperature & humidity sensor SHTC3 and RTC PCF85063 chip for accurate timekeeping.
• TF card slot (FAT32) for external storage.
• 18650 Lithium Battery holder with charging management; optional rechargeable RTC battery header.
• USB, UART, I²C, multiple GPIO headers and 2×8‑pin 2.54 mm female headers for expansion.
• Built‑in dual‑mode power: main battery or independent RTC backup.
Specifications
Display Panel – RLCD
Display Size – 4.2 inch
Resolution – 300×400
Grey Scale – 2
Interface – SPI
Display Mode – Reflective
Driver IC – ST7305
Display Color – Black, White
Onboard Audio Codec Chip
High‑quality audio processing with clear input and output. Supports AI voice interaction via online large model platforms such as DeepSeek, Doubao, etc.
Application Scenarios
Ideal for DIY desktop smart ornaments, electronic calendars, AI smart devices, outdoor displays and more.
Package Content
• ESP32-S3-RLCD-4.2 host x 1
• OPTIONAL 18650 rechargeable Lithium Battery x 1 (if selected)
• 8 Ω 2W MX1.25 2‑PIN speaker x 1
• Screwdriver x 1
• Weight:0.187 kg
Our Commitment to Excellence 🔐 Payment Options
We accept PayPal, Visa, Mastercard, American Express. Instant payment verification ensures quick dispatch. If you have any problems about payment, please contact us via message.
🛡️ Warranty Coverage
We strive for 100% customer satisfaction! Positive response is very important to us. If you have any questions, please feel free to contact us via "Ask seller a question" . We will reply you within 24 working hours. Contact us with proof of purchase.
🚚 Shipping Information
Processing time: 3-4 business days. It takes about 7-15 working days to UK; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection. If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance.
🛠️ 30-Day Free Returns
Enjoy hassle-free returns within 30 days of delivery—no questions asked. Items with non-human-caused damage (e.g., manufacturing defects) are also covered. Returns are free: we cover shipping with no restocking fees. Items must be in original condition, unused, with tags and packaging intact.
Sdgoody
About Us
- SdgoodyNot Just Auto. Not Just Anything. Just… Everything — Done Right.We started with cars. Then came tools, home goods, electronics, hardware, seasonal must-haves — and yes, even that one thing you’ve been searching for everywhere.Think of us as your digital general store: globally sourced, rigorously vetted, and listed with clarity (no cryptic titles, no stock-photo guesswork). Whether you’re fixing, upgrading, gifting, or just stocking up — we aim to be the one tab you keep open.Fast shipping. Fair prices. Real support.No category limits. Just relentless usefulness.🔧📦💡 — Whatever you need. Whenever you need it.
© 2025 Sdgoody. All rights reserved.
Serving Customers in US, UK, DE, AU, and Worldwide
We offer the best value on quality automotive parts, Industrial Supplies, accessories & More
