---
product_id: 246978303
title: "V4.0 Development Board for Arduino UNO R3 with USB Cable"
brand: "keyestudio"
price: "245 DH"
currency: MAD
in_stock: true
reviews_count: 8
url: https://www.desertcart.ma/products/246978303-v4-0-development-board-for-arduino-uno-r3-with-usb
store_origin: MA
region: Morocco
---

# 16 MHz quartz crystal clock speed Distinctive yellow-black design for easy pin identification CP2102 USB serial chip for seamless connectivity V4.0 Development Board for Arduino UNO R3 with USB Cable

**Brand:** keyestudio
**Price:** 245 DH
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your DIY game with the KEYESTUDIO V4.0 – where style meets power!

## Quick Answers

- **What is this?** V4.0 Development Board for Arduino UNO R3 with USB Cable by keyestudio
- **How much does it cost?** 245 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/246978303-v4-0-development-board-for-arduino-uno-r3-with-usb)

## Best For

- keyestudio enthusiasts

## Why This Product

- Trusted keyestudio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Timing:** 16 MHz quartz crystal ensures reliable, high-speed processing for smooth performance.
- • **Compact & Portable:** Lightweight 2.46 oz design fits perfectly on your desk or in your project kit.
- • **Eye-Catching Design:** Stand out with a sleek yellow-black board that’s as stylish as it is functional.
- • **Versatile I/O Options:** 14 digital pins (6 PWM) plus 6 analog inputs to power your most complex projects.
- • **Plug & Play USB Power & Data:** Effortlessly connect and program with included USB cable and CP2102 chip compatibility.

## Overview

The KEYESTUDIO V4.0 Development Board is a fully Arduino UNO R3 compatible microcontroller featuring a CP2102 USB serial chip for easy connectivity, 14 digital I/O pins (6 PWM), 6 analog inputs, and a 16 MHz quartz crystal for precise timing. Its unique yellow-black design enhances usability and aesthetics, making it a must-have for professional makers and hobbyists seeking reliable, stylish hardware with included USB cable for immediate use.

## Description

KEYESTUDIOV4.0 Development Board for Arduino UNO R3 with USB Cable

## Features

- KEYESTUDIO V4.0 board is updated with CP2102 USB serial chip, fully compatible with arduino.
- 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP headers and a reset button.
- This microcontroller can be used by connecting it to a computer with a USB cable or power it with an AC to DC adapter. Also, it comes with the USB cable.
- BEAUTIFUL LOOK & PACKAGING: cool yellow-black design which is a departure from the standard, dull, black boards, the yellow silk screen on black mask make it easy to read the pin labels
- Flash Memory: 32 KB (ATMEGA328P-PU) of which 0.5 KB used by bootloader

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Standing screen display size | 2 Inches |
| Screen Resolution | 800 × 600 |
| Processor | 5x86 |
| RAM | 1 GB no |
| Memory Speed | 16 MHz |
| Card Description | Dedicated |
| Wireless Type | Infrared |
| Brand | KEYESTUDIO |
| Series | KEYESTUDIO V4.0 Development Board |
| Item model number | KE-0017 |
| Operating System | Windows 10 |
| Item Weight | 2.46 ounces |
| Package Dimensions | 4.45 x 3.46 x 1.06 inches |
| Color | Yellow |
| Processor Brand | no |
| Number of Processors | 1 |
| Computer Memory Type | DDR DRAM |

## Product Details

- **Brand:** KEYESTUDIO
- **Operating System:** Windows 10
- **CPU Model:** 5X86
- **Graphics Card Description:** Dedicated
- **Memory Storage Capacity:** 32 KB
- **Specific Uses For Product:** Education
- **Personal computer design type:** All in One
- **Screen Size:** 2 Inches
- **Model Name:** KEYESTUDIO V4.0 Development Board
- **Included Components:** 显示器

## Images

![V4.0 Development Board for Arduino UNO R3 with USB Cable - Image 1](https://m.media-amazon.com/images/I/61hr-NGYk4L.jpg)

## Questions & Answers

**Q: Does it support jtag? Ejtag?**
A: Nope.  Not much JTAG support in the lower-end Arduino world.

**Q: What drivers do I need to install to get this to work?**
A: Install the open source Arduino Development Environment software on your computer. These board are 100% compatible with the standard Arduino UNO R3. You should be able to compile and upload your software to this board with no additional drivers being needed. Silicon Labs does have the USB to UART drivers available on their website just in case you run into an issue with the USB communications. This board worked just fine on my computer, but I already use Silicon Labs USB bridges for my other work. I may already have had their drivers installed so I did not see any issues.

**Q: where i can boy motor shield and Led dot matrix 8 * 16 for KS0470 model?**
A: Amazon.  Search “Arduino Uno Motor Shield”. Again Amazon and search “MAX7219”.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Subtle details can make a big difference
*by B***T on February 8, 2024*

It's an Arduino UNO V3... not much else to say about that except that it works as well as every other UNO I have from every other company that makes them.Two things about this board set it apart from the rest. They are subtle details, to be sure, but they make a BIG difference.One is the printing on the board is high contrast. The board is black. The V3 connectors and the pin labels on the board are bright yellow. It is much easier to see than black printing on a blue board. The printing itself is crisp and can be easily seen.Two is socket for the ATMega chip. It's a little easier to get the chip in and out than sockets used on other boards. I realize that most IC sockets have a life of around 10 insertions but this one seems a little tougher. The reason this is important, to me at least, is that I use the board to develop sketches then move the programmed chip to a PCB, usually for my robotic drone projects. Weight in a drone is critical and anything you can do to save a few grams here and there can dramatically improve flight duration. All you need to run an Arduino Uno sketch is a programmed ATMega chip, a 16mhz Xtal, and a couple of 22-pf capacitors. You don't need the whole board. (Caveat: you also lose some of the circuit protections that the boards provide, especially when it comes to overvoltage. It is very easy to fry an ATMega chip if you make a wiring error.)Just a quick note: I eventually replaced the fixed socket with a ZIF socket (Zero Insertion Force, also available from Amazon for a good price). Individual ATMega chips can be purchased here in a 10-pack but I would not recommend doing that until you are very comfortable with DIY circuit making. Once you are, however, your project world will open up like you never imagined and you can take your next steps to truly become a Maker.Build a bunch of projects! Learn and have fun!

### ⭐⭐⭐⭐⭐ Great for the price.
*by D***P on April 21, 2025*

Work as well as real Arduinos and at a third of the price.

### ⭐⭐⭐⭐ Great however you need to install drivers
*by M***E on April 15, 2023*

I bought this for my 10 year old at the time and he got a little confused but then he looked online for a driver and now it works fine!

## Frequently Bought Together

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-01-22*