Best Keyestudio in 2026

PERFECTLY COMPATIBLE with IDE Software: a nice upgrade to the r3 controller which will allow more complex programs and projects to be done

RIGHT OUT OF THE Box: uses the official ATmega IC instead of CH340G, no driver problem

EXCELLENT QUALITY: The build quality is good with straight headers and good soldering. It comes with instructions on downloading and installing a driver on Windows machines. They are well packed in a nice box.

Please NOTE: Open the Arduino IDE, you’ll need to click the “Tools”, then select the Board that corresponds to your Arduino. If you don't choose the correct development board type, it will cause the compilation to fail to transfer. So this is a place that needs special attention.

The keyestudio Leonardo is a microcontroller board based on the ATmega32u4，It has 20 digital input/output pins (of which 7 can be used as PWM outputs), 12 analog inputs, a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button.

The Leonardo differs from other boards using separate USB-Serial chip in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor.

Specially designed for Microbit board. This kit includes a keyestudio sensor shield fully compatible with micro bit and other commonly used 37 kinds of sensor modules. It's compatible with both microbit v1.5 and v2, microbit board not include!

Designed to learn electronics programming. Great hands on STEM kit to get started with the micro bit. The product needs to be debugged before use, such as an LED display module. Please use an external power supply and debug the backlight brightness.

The kit gives 37 kinds of common sensors, such as Digital LED Module, Analog Temperature Sensor, Photocell Sensor, Ultrasonic Module etc, allow you make a lot of interesting projects like Traffic Light, Magnetic Check, Temperature Test, Joystick Test, Photo-interrupter Test, Alcohol Detection and so on.

Particularly design this keyestudio sensor expansion board V2 for micro:bit. breaks out all the PIO ports on the micro:bit control board into 3PIN interface (GND, VCC, Signal), easy to connect it with other sensor modules.

Extending some commonly-used serial communication interfaces into pin or female headers with 2.54mm pin pitch, such as I2C and SPI communication pins.Allows communication between micro:bit control board and other communication devices.

Two kinds method to power the micro:bit board, through a black DC jack (DC 7-9V) or a mciro USB port (DC 5V) on the shield.

This sensor kit comes with 37 basic sensors and modules, which is good for learning basic knowledge about sensors. The main controller is Not Included.

It comes with detailed tutorials which include pictures and code and 37 projects, explained step by step. Note we provide arduino tutorials, without Raspberry Pi tutorials.

Each module has 3-4 pins broken out that make it easy to plug into a solderless breadboard or hook up to with DuPont wires. They are intended to be used with the Arduino platform, but can also be used with the Raspberry Pi platform as well.

The RAMPS1.4A is used as driving shield for 3D printers, it is easy to stack it onto the MEGA 2560 control board.

It has total 5 slots for stepper motor drive module to drive 5-channel stepper motors. The slots are compatible with all kinds of drive modules like A4988, DEV8825.

There are 3 jumper caps under each slot, which can be used to control the working subdivision of drive modules.

Bright and clear display- white texts on Blue backlight, adjustable contrast

Built with IIC/I2C interface to save 5 IO ports(the original 1602 LCD needs 7 IO ports to be up and running)

Plug and play; Easy to use with Arduin Liquid Crystal Library; Easy to connect to a Raspberry Pi

Keyestudio MEGA ProtoShield makes it easy to design circuits and solder electronics. All the pads are tinned and easy to solder to.

The extra GPIO pin header on the right side is left empty making easier to install one according to the user's preference.

Be able to attach a Mini breadboard to make various circuit experiments. You can weld elements on the shield's prototyping area or connect circuits with tiny breadboard.

This expansion board can directly stack on the controller R3 board and can drive up to 16 servos

Uses I2C input, just occupy A4 and A5 interface on the control board

Contains PCB double sided holes, can direct to solder with components to build up prototyping circuits

It integrates 4-channel 5V relay module, and is fully compatible with R3 control board.

The 4-channel relay module shield is active at HIGH level.

Relay Terminals: high-power, high-current high voltage can be connected to the device.

Micro bit controller V2.21 is included！onboard comes with Bluetooth, accelerometer, electronic compass, three buttons, 5 x 5 LED dot matrix, mainly used for teens programming education.

Specially designed this starter kit which includes common used resistors, LEDs, sensors, LED segment display and more to get you started 18 interesting projects at least.

We have detailed tutorial( included introduction, wiring diagram, test code, driver installation, Example Projects...... Step by step to explain how to use in our wiki page.

WITHOUT micro: bit!!! just Work with micro:bit v2!! This Smart Home for Micro:bit kit will let kids having a surprising amount of fun playing with house - the context definitely makes learning the code more fun.

Provide Free Tutorial PDF（MakeCode Blocks & Python Code）,Wireless Remote Control APP(Android/IOS), Easy to assemble and learn micro:bit coding RGB LED shine,Temperature & Humidity Measure, Rain Alarm,Temperature Controlled Fan and more functions.

Includes a Solar Energy Panel, Solar Power Module with Solar and micro USB ports. Solar Powered House—Providing safe and high-efficiency embedded solar power management, great for IoT projects and renewable energy projects.

Compatible with the open source development environment Arduino UNO R3 and Arduino IDE.

Microcontroller：ATMEGA328PB

USB to serial chip: CH340C

KEYESTUDIO UNO MAX kit contains a Max development board, acrylic boards, screws, copper bushes and a Type C USB cable.

The Max Control Board is an Arduino uno-compatible board, which isbased on ATmega328P MCU, and with a cp2102 Chip as a UART-to-USB converter.

It integrates three LEDs, two 6812RGB LEDs, two button switches, a buzzer, a microphone sensor, a light sensor, and an 8*16 dot matrix.

Free PDF tutorial(more than 22 lessons) and clear listing in a nice package

The most economical kit based on Arduino platform to starting learning electronics for those beginners who are interested.

Lcd1602 module with pin header (not need to be soldered by yourself)

Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1. 5GHz---4GB LPDDR4-2400 SDRAM

2. 4 GHz and 5. 0 GHz IEEE 802. 11B/g/n/ac Wireless LAN, Bluetooth 5. 0, double-true Gigabit Ethernet

2 × USB 3. 0 ports, 2 x USB 2. 0 Ports---2 × micro HDMI ports supporting up to 4Kp60 video resolution

The Mega is 100% compatible with Arduino IDE and most shields designed for the Arduino mega R3，RoHS Compliant

The chip is Atmega+2560-16au and 16u2, same with the official version.

Improved and expert version: 1. 0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible both with the board that use the AVR, which operate with 5V and with the Due that operate with 3. 3V. The second one is a not connected pin, that is reserved for future purposes.

USB-C Connector for the latest Raspberry Pi 4 Model B

DC 5. 1V 3 Amp Power Supply

15. 3 watts, 1. 5M cable (18AWG)

The Mega is 100% compatible with Arduino IDE and most of the shields are designed for the Arduino mega R3，RoHS Compliant

The chip is Atmega + 2560-16au and 16u2, same with the official version.

Improved and expert version: 1. 0 pinout: added SDA and SCL pins that are near to the AREF pin

WIDE-RANGE COMPATIBLITY- This base plate case is compatible with Arduino R3, Mega2560 and Raspberry Pi 4B/3/2/B+,Pi zero as well as working with both 400 and 830 points breadboards.

SUPERIORLY DESIGNED SLOTS- The slots are specially designed for TF cards, HDMI and USB cords to be inserted without hindering the power connection.

WELL-CRAFTED DESIGN- The RAB Holder has a customized, sleek design that is attractive and is more comfortable to touch while working with it.

Clear prints on the female header connector, more precise and easier to use the wire.

The ELEGOO UNO R3 BOARD now uses an 16U2 instead of the ATMega8U2 chip. Faster transfer rates and more memory.

Control using ATMEL ATMEGA+328P chip(the same with Arduino UNO R3)

The controllers are easy to program by using the CP2102-USB interface without having to press the flash and reset buttons before each flash operation.

The development board has integrating GPIO, PWM, IIC, 1-Wire and ADC all in one board. Support smart link smart networking.

The fast and affordable technology for WiFi. Make your development the fastest way combined with firmware for NodeMcu.

Raspberry pi 3 model b adds wireless LAN and Bluetooth connectivity making it the ideal solution for powerful connected designs.

Raspberry pi 3 use Processor chipest Boardcom BCM 2837 64 bIT ARMv7 Quad Core processor powered Singel Board Computer running at 1200MHz

Raspberry pi 3 model b RAM : 1GB SDRAM@400MHz

The MEGA complete starter kit with more than 200pcs components, premium quality and 100% Compatible with Arduino IDE

Free pdf tutorial in the cd (33 lessons)

Lcd1602 module and gy-521 sensor module with pin header ( no need to solder by yourself)

More than 200 components, this is the most complete starter kit you will find. Great value starter kit with 63 kinds of electronic components.

Has all the components you need and a free PDF tutorial (more than 30 lessons) to show you how to use them. All code to use the modules is included on the CD.

All the modules come soldered so they are easy to wire up.

powful cputhe cpu of the raspberry pi 4 model b adopts the latest arm cortex-a72 architecture, which is also used in high-performance smartphones, and has evolved into a real pc.the operating clock has been changed from pi3's 1.2ghz to 1.5ghz, and the speed has become a different dimension with the updated architecture.

video output/gputhe on-board gpu of the raspberry pi 4 supports 4kp@60 and newly supports h.265 decoding, opengl es 3.0, etc.as for the video output, two micro hdmis with smaller connectors are installed, and the raspberry pi 4 also supports dual screen output.

usb 3.0with a new soc, the speed of the raspberry pi 4 around i/o has been improved, and finally usb 3.0 is supported.usb boot is faster and more convenient.

This 7" Touchscreen display for the Raspberry Pi is perfect for creating portable and embedded projects where a keyboard and Mouse would be in the way.

The full color display outputs up to 800 x 480 and features a capacitive touch sensing capable of detecting 10 fingers.

Only two connections from the Pi TO the Display are necessary; power from GPIO (or USB) connection to the DSI port. The adapter board handles power, Signal conversion, and touch input conversion.

Raspberry Pi 3 Case Clear for Raspberry Pi 3 - Miuzei Clear Acrylic Raspberry Pi 3 B Case is Specially designed for Raspberry pi 3 B / 3 B+, and perfect compatible with Raspberry Pi 3 B / 3 B+ / 2B. Assembly easy for beginners and amateur.

Keep Raspberry Pi 3 Cooling - New Raspberry pi 3 B case with a Silence DC 5V cooling fan and 3 pcs Aluminum heatsinks, double cooling system keep your Raspberry pi 3 B+ cool quickly even the CPU under high load.

Raspberry Pi Power Supply - raspberry pi 3 case with a 5V 3A power supply which has an ON/OFF switch, easy to power on/off your Raspberry pi 3 b+ / 3 b / 2 b. No need to worry about overvoltage or overcurrent.

Unique Removable Top Cover Design, you can get in touch with the GPIO or Camera Connector Very Simple

With 40mm Quiet Cooling Fan, it can drop the temps for your Pi

Include Raspberry Pi 4 Heatsink, Better Cooling Experience

5V 2-Channel Relay interface board, and each one needs 15-20mA Driver Current

Equiped with high-current relay, AC250V 10A ; DC30V 10A

Standard interface that can be controlled directly by microcontroller (compatible with Arduino ,Raspberry Pi, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)