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Description
ESP32-S3 4.2 Inch RLCD Full Reflective Display Development Board Supports Wi-Fi & BLE Dual-Mode Communication Without Battery, 335071. Features a high performance Xtensa 32 bit LX7 dual core processor with a clock speed up to 240MHz 2. Supports 2. 4GHz Wi Fi and Bluetooth 5 (LE) with built in antennas 3. Includes 512KB SRAM and 384KB ROM, while stack integrated with 16MB Flash and 8MB PSRAM 4. Features a 4. 2 inch full reflective display with 300 x 400 resolution, offering reflective imaging and eliminating the need for backlighting 5. Equipped with a dual microphone array
1. Features a high-performance Xtensa 32-bit LX7 dual-core processor with a clock speed up to 240MHz
2. Supports 2.4GHz Wi-Fi and Bluetooth 5 (LE) with built-in antennas
3. Includes 512KB SRAM and 384KB ROM, while stack-integrated with 16MB Flash and 8MB PSRAM
4. Features a 4.2-inch full-reflective display with 300 x 400 resolution, offering reflective imaging and eliminating the need for backlighting
5. Equipped with a dual-microphone array enabling audio algorithms like noise reduction and echo cancellation, ideal for precise voice recognition and near-field/far-field voice wake-up applications
6. Onboard PCF85063 RTC real-time clock and SHTC3 temperature/humidity sensor for precise RTC time management and environmental monitoring
7. Integrated 18650 lithium battery holder and RTC backup battery holder (requires rechargeable RTC battery), supporting dual-mode operation: main power supply and independent RTC backup
8. Onboard Micro SD card slot for external storage of images or files
9. Two customizable side buttons (KEY and BOOT) for developing user-defined functions
10. Reserved 2 x 8-row female header (2.54mm pitch) for external expansion
Specifications
1. Display panel: fully reflective screen
2. Display size: 4.2 inches
3. Display resolution: 300 x 400
4. Gray scale levels: 2
5. Communication interface: SPI
6. Display method: fully reflective
7. Driver IC: ST7305
8. Display colors: black, white
9. Size: about 9.25 x 6.91 cm
Packaging list:
- ESP32-S3-RLCD-4.2-EN host x 1
- Acrylic stand x 2
- 8-ohm 2W MX1.25 2PIN speaker (forward) 80mm x 1
- Screwdriver x 1
Specification:
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4.8 ★★★★★
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Product Reviews
★★★★★ 1
Not Worth The Money
Format: Paperback
ai garbage
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Reviewed in the United States on October 28, 2025
★★★★★ 5
Basic tools for a successful professional start
Format: Kindle
This book is a guide to success in the beginning of your career path is a necessary manual for graduates, emerging professionals and job seekers. It shows twelve tools such as self-awareness, resilience, communication, collaborative work, leadership, time management, teamwork, influence, etc. that are often ignored in formal education, but are essential to excel in the workplace.
With clear explanations, concrete and practical examples, this book instructs on how to use your skills, respond gracefully to failures, handle disputes and build healthy working relationships.
It is recommended reading for those who want to build a strong and satisfying career from day one.
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Reviewed in the United States on June 24, 2025
★★★★★ 5
Skills for Wherever You Work
Format: Kindle
12 Universal Skills: The Beginner’s Guide to a Successful Work Life by Peter Scheele and Nina Bech-Andersen offers a refreshingly clear and structured approach to mastering essential soft skills. Covering communication, time management, teamwork, and more, the book breaks down each skill into actionable steps ideal for newcomers to the professional world. Its effectiveness has earned it a place in training programs at leading global companies across tech, healthcare, and finance. Whether you’re launching a new career or strengthening your foundation, this guide provides the tools to thrive in any workplace. Practical, accessible, and impressively universal.
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Reviewed in the United States on May 27, 2025
★★★★★ 4
Amazing guide for life
Format: Kindle
In 12 Universal Skills: The Beginner's Guide to a Successful Work Life, Peter Scheele and Nina Bech-Andersen stress the significance of interpersonal skills for achieving success in both personal and professional spheres. These skills, known as "soft skills," "essential skills," "human skills," or "universal skills," are crucial. The authors offer practical guidance and techniques to enhance individual effectiveness, covering essential areas like time management, communication, decision making, job hunting, and goal setting. Although the book's content may seem obvious, it goes beyond explaining what and why, providing actionable advice on how to improve productivity.
The book is not only suitable for beginners but also for business professionals aiming to enhance their interpersonal abilities. As an adjunct professor of leadership at esteemed universities, I highly recommend "12 Universal Skills" as an excellent resource that equips students with the tools they need to succeed both now and in the future.
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Reviewed in the United States on May 8, 2023
★★★★★ 5
Covers lots of important topics
Format: Kindle
12 Universal Skills by Peter Scheele and Nina Bech-Andersen is one of those books that comes across as something that should be taught in a college level classroom. If I was going to rename the book, I would call it How to Work With People. This is a general skill that we never really learn much about, but so much of our lives both professionally and personally are based around this idea. Some of the topics included here are how to solve conflicts with others, how to manage your time, and how to work as part of a team. These are skills that we are expected to practice as we make our way through school, but are never truly taught to us making them areas of weakness that need to be addressed. If you are starting a career, just getting out of school, or are simply looking for ways to improve yourself then this is a a great read for you.
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Reviewed in the United States on June 27, 2024