Development boards

Arduino Nano A000005 is the smaller, friendlier version of Uno's badge. Perfect for IoT applications and for mobile device prototypes. This board is based on the ATmega328 and has a wide range of applications, thanks to its small size and flexibility.

Arduino has decided to further develop its catchy Nano project in the direction of more power. Nano Every is the simplest of the new series as it doesn´t include any sensors nor connectivity solution, however still significantly more powerful than standard Nano (50% more program memory and 2 times more RAM). Above characteristics make it perfect for projects of small devices with more advanced functionalities, such as audio processing or robotics.

NRF24L01 Adapter + Wireless Transceiver 2.4GHz Socket Arduino features:
- The NRF24L01 + module is powered with 3.3V
- This adapter module includes a 3.3V voltage regulator
- You can connect the NRF24L01 module on it at 5V voltage
- Dimensions of PCB: 25x 18mm
- Quantity: Adapter 1 unit

Encapsulated with water resistant stainless steel with sensor dimensions 6 * 50mm, cable length 300 cm. DS18B20 Waterproof Digital Temperature Sensor Probe 3m features:
- Based on the DS18B20 chip
- Supply voltage: 3 ~ 5.5V
- Consumption <5mA
- Measuring Range: -55 ° C to 125 ° C
- Accuracy: +/- 0,5ºC
- Outputs: - GND black
             - Vcc red
             - Yellow digital output
- Inocidable steel
- Cable length: 3m

The bluetooth HC-05 module is one of the best options for projects where you need wireless communications.
The transceiver module (transmission / reception) allows bluetooth wireless connections as master or slave, works transparently as if making a wired RS-232 TTL serial connection. Arduino Wireless Module HC-05 HC05 Bluetooth features:
- CSR BC417 Chipset
- Power: 3.3.
- Bluetooth version V2.0 + EDR
- Frequency: 2.4GHz ISM band
- Modulation: GFSK
- Approximate range: 10m
- Security: Authentication and encryption
- Speed- & gt; Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps / 1Mbps
- Supports AT commands for configuration through a serial port
temperature: -20 ºC to +75 ºC

5.8GHz Doppler Radar Motion Sensor features:
- Microwave motion detector module
- The main applications can be security alarms and sensors, Automatic door systems, ATM machines, car reverse systems, light sensors, can also be used for traffic monitoring and monitoring applications.
- High resistance to radio-frequency interference
- Frequency: 5.8GHz
- Operating Voltage: 3.3V - 20V TTL 3.3V
- Standby Current: 3mA
- Detection Range: 3-8 meters, 360 degrees
- Power of Output: 2mW
- Dimensions: 32x23 mm
- R6 - time-delay; initial value 2.2k - 1s, without delay resistance 30s, can be adjusted up to 250k
- R9 - for sensitivity adjustment

Transceiver based on the SI4432 Silicon Labs chip
Industry standard model
Capacitive components manufactured by Murata with 10ppm high precision glass
Outdoors - a distance of up to 1.5 km 1.5km radius SI4432 433MHz RF Telemetry features:
- Supply voltage: 1.8 ~ 3.6VDC
(Note: a voltage higher than 3.6 V will cause permanent damage to the module)
- Communication level: 0.7VDC ~ 3.6V (VCC refers to the module supply voltage)
- Working frequency: 425M ~ 525MHz (via software setting, the module uses 30M glass)
- Measured distance: 1500m (clear and open, maximum power, height 1.5m, air speed 1k)
- Transmission power: up to 20dBm (about 100mW)
- Air rate: 0.123k ~ 256Kbps (software adjustable, low airspeed recommended)

It has an Atmega328P chip running at 16Mhz with a factory loaded bootloader.
The Uno R3 module has all connectors than the Arduino Uno R3 and is compatible with all Arduino shields.
Plate UNO R3 CH340 + Arduino compatible switches features:

- ATmega328P chip at 16MHz with crystal external quartz
- ATmega328P microprocessor with socket
- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Input voltage (limits): 6- 20V
- Clock speed: 16 MHz
- Digital I / O Pins: 14
- Analog input pins: 6
- DC current per I / O Pin: 40 mA
- DC Current per Pin 3.3V: 50 mA
- Flash32 KB of which 0.5 KB are used by the bootloader -Atmega328
- SRAM 2 KB - Atmega328

Feature of 3D Zum shield: - Input voltage 8-16 V
- 2 connectors for stepper motors
- 4 connectors for laser
- Analog connectors for LDR sensors
- Power jack connector
- Reset button
- Protection fuse for stepper motors
- Compatible with Arduino UNO
- Dimensions of PCB 67 x 54 mm
- Content:
       - 1x Zum Shield 3D
       - 1x UNO R3 Compatible Arduino
       - 1x Controller A4988
       - 1x Male pin strip
       - 1x Heatsink for A4988
       - 1x USB cable
       - Jumpers

Sensor Module ML8511 UV features:
- The module converts the photocurrent into voltage to detect UV intensity
- The analog voltage is proportional to UV light detecting
- The has a power saving mode of up to 0.1uA, suitable for smart portable devices or mobile phones for use
- Power supply: 5V
- Analog output
- Captured wavelength: 280-390nm
- Ultra low power consumption
- Meteorological applications, skincare, industrial UV level measurement
- Dimensions of PCB: 30x22mm

Characteristic: - Quiescent current: 50 mA (without load)
- Efficiency: 90%
- Nominal output power max.: 2 x 100W
- Frequency response: 20Hz to 20KHz
- Operating voltage: DC20V to DC34V
- Recommended supply voltage: DC32V
- Speaker parameters: 6 Ohm , 8 Ohm
- PCB board size: 87 × 72 mm
- Package includes cable

USB DC 5V Bluetooth Audio features:
- You can connect it with your smartphone
- Power: DC 5V micro USB
- Speaker: 4 ~ 8 Ohm - Audio Jack: 3.5mm
- SD card: support MP3 / WMA / WAV / FLAC format
- The transmission distance could be up to 10m
- Size: 50 x 40 mm

The meter built on the basis of a water rotor and a Hall effect sensor
Please note this is not a Accuracy. Pulse rate varies slightly depending on flow rate, fluid pressure, and sensor orientation. Water Flow Sensor 1-30l /Min YF-S201 features:
- Working voltage range: DC 5 ~ 18 V
- Allow pressure: water pressure below 1.75Mpa
- Accuracy (flow-pulse output): ± 1 ~ 30 l / min
- Use temperature: ‰ ¤ 80 ° C
- Load capacity: ‰ ¤ 10 mA (5Vdc)
- Operating humidity: 35% ~ 90% RH (frost free)
- Temperature: -25 ~ + 80 ° C
- Outlet diameter: 1/2 "
- Red wire: positive supply
- Wire Black: negative power supply
- Yellow Cable: signal output
- Color: black
- Size: 6.2x3.6x3.4 cm

Wired Bone Conductor Transducer - 8 Ohm 1 Watt
This amazing speaker does not have a movable cone like most From the speakers you've seen, instead, a small metal rod is wrapped with the voice coil.
When the current is driven through the coil, the magnetic field makes a piece of metal expands and contracts, if pressed against a flat surface or cavity makes it a speaker! Often these size transducers are pressed against the jaw or ear bone to turn the skull into a speaker socket.
The effect is a perfect quality sound that comes from your head and no one else can hear it. You can also press it against your elbow bone and stick a finger in your ear to listen to the audio transmitted through your arm!

MAX98306 3.7W Stereo Amplifier - Class D Stereo Audio Amplifier 8 Ohm.

This module includes the component BME280 that is translated into a digital signal.
The equipment uses the two I2C and SPI interfaces. The BME280 does not allow the module to be used as an altimeter as opposed to its successor BMP280.
Its 5-pin straight connector allows easy connection to other electronic boards. BME280 Digital Temperature Humidity Barometric Pressure Module features:
- Interfaces:
- I2C (up to 3.4 MHz)
- SPI (up to 10 MHz)
- Supply voltage: 1.8-5VDC
- Module operating range:
- Temperature: -40ºC to + 85ºC
- Humidity: 0-100%
- Pressure: 300-1100 hPa
- Resolution of the measures:
- Temperature: 0.01ºC
- Humidity: 0.008%
- Pressure: 0. 18Pa
- Accuracy of the measures:
- Temperature: +/>

Arduino Shield Sensor Expansion Board V2.0 features:
The Mega Sensor Shield V2.0 allows: - To be directly punched to an Arduino Uno, Mega, Leonardo board
- Facilitate the connection of different modules, such as sensors, relays, servos, buttons, potentiometers and more
- Size: 100x54x12 mm

It is a mini GPS module including a NEO-6M chip and an EEPROM memory chip.
The SMA antenna port is On-board IPEX and cell phone button battery ensure robust positioning efficiency and fast satellite discovery speed.
Serial port provides simple initial knowledge to stay in touch with the most compatible Arduino-compatible MCU STM32. Characteristic: - Supply voltage: 3.3 - 5 VDC
- Operating current: 45 mA
- Communication speed: 9600 Bauds configurable from 4800 to 115200 Bauds
- Navigation update: 5 Hz max. (1 Hz default)
- Capture time: at the start 27s, in operation 1s
- Operating temperature: -40 ° C - + 85 ° C
- separate GPS antenna (not included ): 18x18 mm
- Size: 22x30x13 mm

It is a mini GPS module including a NEO-6M chip and an EEPROM memory chip.
The SMA antenna port is On-board IPEX and cell phone button battery ensure robust positioning efficiency and fast satellite discovery speed.
Serial port provides simple initial knowledge to stay in touch with the most compatible Arduino-compatible MCU STM32. Characteristic: - Supply voltage: 3.3 - 5 VDC
- Operating current: 45 mA
- Communication speed: 9600 Bauds configurable from 4800 to 115200 Bauds
- Navigation update: 5 Hz max. (1 Hz default)
- Capture time: at the beginning 27s, in operation 1s
- Operating temperature: -40 ° C - + 85 ° C
- separate GPS antenna 18x18 mm - Size: 22x30x13 mm

The MAX9812 is a sound amplifier specially designed to treat the signal coming from microphones.
We can use it together with Arduino to measure sound from a processor like Arduino.
When we saw the modules with microphone we commented that, in general, the signal generated is too low to be registered correctly.
If we want to be able to measure sounds, we will have to amplify the signal. The MAX9812L has single / dual inputs, fixed gain of 20dB, bandwidth of 400 kHz, low noise and low signal distortion 0.015% THD.
There are two models, its supply voltage is 2.7V to 3.6V.
We can use the sensors with MAX9812 for applications that require measuring the intensity or frequency of the sound.

Inductive Proximity Sensor PL-05N NPN Limit Switch is used for controlling machinery as part of a control system, as a safety interlock, or to count objects passing a point. Inductive proximity sensor PL-05N 5mm with NPN output features:
- Manufacturer: Fotek,
- Square Type,
- Sensing distance: 5mm,
- Operating voltage: 10 - 30 VDC,
- Response frequency: 800Hz,
- Output method: NPN, 150mA load,
- Hysteresis: <10% of sensing distance,
- Protection degree: IP67,
- Working temperature/Hum: -20ºC - +80ºC, 35% - 90% RH,
- Body dimension: 30.5x17.9x10.2mm (LxWxH),
- Mounting Method: Flush,
- Sensing Direction: Horizontal,
- Materia Housing: High-impact plastic,
- Screw hole: 3.2mm, Pitch: 10.5mm,

Perfect kit to learn programming in the middle of Arduino the basic of electronics
It allows to build various projects of various complexity, from the easiest ... to the most complicated.
The elements are placed in the box to keep everything in order.   Characteristic:   It includes the following module references:   - 1x UNO R3 Rev3 ATmega328 ATmega16U2 Development Board Arduino Module
- 1x LED Display Screen Controller Blue Backlight 16x2 1602 HD44780
- 1x Prototype Protoboard MB-102 830 points Arduino
- 1x 74HC595 74595 SN74HC595N 8-Bit Shift Register DIP-16
- 1x LM35 Temperature Sensor LM35DZ TO92
- 2x SW-520D Vibration Tilt Sensor
- 1x Infrared LED Flame Sensor 5mm
- 3x Photoresistor GL5516 LDR

Perfect kit to learn programming in the middle of Arduino the basic of electronics It allows to build various projects of various complexity, from the easiest ... to the most complicated.
The elements are placed in the box to keep everything in order.   Characteristic:   It includes the following module references:   - 1x UNO R3 Rev3 ATmega328 ATmega16U2 Development Board Arduino Module - 1x LED Display Screen Controller Blue Backlight 16x2 1602 HD44780
- 1x Prototype Protoboard MB-102 830 points Arduino
- 1x ProtoShield Prototype Expansion Board with Mini Breadboard 170 points for Arduino Proto V5.0
- 1x 74HC595 74595 SN74HC595N 8-Bit Shift Register DIP-16
- 1x LM35 Temperature Sensor LM35DZ TO92
- 2x SW-520D Vibration Tilt Sensor

The kit contains the Mega board, the Ramps 1.4 shield and 4 A4988 controllers with heatsinks.

CNC Shield + UNO R3 CH340 +4x A4988 Stepstick 3D Printer Arduino kit features:
- Content:
* 1x UNO R3 CH340 Compatible with Arduino
* 1x CNC Shield V3
* 4x A4988 Drivers
* 4x Heatsinks for A4988
* Jumpers

It is very easy to make it work with an Arduino, PIC or any other microcontroller.
In its output pin we can measure the pulse width PWM depending on the distance of the obstacle.
Mounting bracket is ideal for installing the sensor on mobile platforms such as robots, vehicles, etc. HC-SR04 + Ultrasonic Sensor Support Arduino features:
- Supply voltage: 5V (4.5V-6V)
- Consumption: typical 30 mA, (35 mA max)
- Interface: VCC, GND, Signal
- Range: 2 cm to 3 meters
- Angle 15º
- LED measurement indicator in progress
- Frequency: 40 kHz for 200 μs
- Size: 30 mm x 20 mm Feature of the support: - Material: Acrylic
- Transparent color
- Includes screws

Mini UNO ATMega328 basic kit for Arduino to learn programming.
It allows to build various projects of various complexity, from the easiest ... to the most complicated
The elements are placed in the box to keep everything in order.

W1209 DC 12V Thermostat + Transparent Box Temperature Controller features:
- Model: W1209
- Supply voltage: DC 12V
- Temperature control mode: ON / OFF
- Temperature range: -50-110 ° C
- Resolution: 0.1 ° C range -9.9 ~ 99.9 ° C, above is 1 ° C
- Measure accuracy: 0.1 ° C
- Refresh rate: 0.5s
- Temperature protection 0-110 ° C
- Static current: ‰ ¤ 35mA, working current ‰ ¤ 65mA
- Output power: 10A relay
- Probe sensor: NTC (10K 0.5%) Waterproof Sensor
- Environmental requirements: -10 ~ 60 ° c Humidity 20% -85%
- Dimensions: 48 x 40mm

UNO R3 Basic Kit ATMega328 in a box for Arduino. It allows to build various projects of various complexity, from the easiest ... to the most complicated
The elements are placed in the box to keep everything in order.
100% Arduino compatible
Characteristic:
It includes the following module references:
- 1x UNO R3 Rev3 ATmega328 ATmega16U2 Development Board Arduino Module - 1x LED Display Screen Controller Blue Backlight 16x2 1602 HD44780
- 1x Prototype Protoboard MB-102 830 points Arduino
- 1x Protoboard Breadboard 5x7cm
- 1x 74HC595 74595 SN74HC595N 8-Bit Shift Register DIP-16
- 3x BC547B Bipolar Transistor NPN 50V 100mA 0.1A TO-92
- 3x BC557B Bipolar Transistor PNP 50V 100mA 0.1A TO-92
- 1x PCF8574P I/>

Kit electronic components for Arduino UNO Mega.
It allows to build various projects of various complexity, from the easiest ... to the most complicated
The elements are placed in the box to keep everything in order.
Characteristic:
It includes the following module references:
- 1x Protoboard Breadbord 400 points Arduino
- 20x Male-Male Cables 20cm Jumpers Dupont 2,54
- 1x LED Diode Assortment Kit 30 pcs 5mm red, green, yellow
- Resistors:
 - 10x Resistors 200R Ohm 5% 0,25W 1/4W
 - 10x Resistors 1K Ohm 5% 0,25W 1/4W
 - 10x Resistors 10K Ohm 5% 0,25W 1/4W
 - 10x Resistors 100K Ohm 5% 0,25W 1/4W
- 2x Photoresistor GL5516 LDR
- Push switch buttons:
 - 1x Push Switch Button B3F Omron Blue Key 12mm

Starter kit with the UNO R3 module sensors in a box for Arduino.
Compatible with Arduino
It allows to build various projects of various complexity, from the easiest ... to the most complicated
The elements are placed in the box to keep everything in order.
Characteristic:
It includes the following module references:
- 1x UNO R3 Rev3 ATmega328 ATmega16U2 Development Board Arduino Module
- 1x LED Display Screen Controller Blue Backlight 16x2 1602 HD44780
- 1x Prototype Protoboard MB-102 830 points Arduino
- 1x 74HC595 74595 SN74HC595N 8-Bit Shift Register DIP-16
- 1x USBASP Programmer Adapter Cable Atmega8 Atmega128 AVR
- 5x Push Switch Button B3F Omron Yellow Key
- 1x Linear 5K Potentiometer OHM kΩ

Reprogrammable voice module with large storage capacity that can support the maximum 1GB SD card, and support audio files of WAV and ad4 format.
Wtv020-sd module uses wtv020sd-20s Voice chip as master core, with MP3 control mode, one to one key control mode (control 3 voice groups or 5 voice groups), 2-wire serial port control mode and loop play mode after power on. Control mode is set by programming the voice chip, and can't change to another control mode during operation, what control mode do you need, just tell us, we can customize it for you.

Ultraviolet ray detection module 200-370nm with a supply voltage of 3.3-5 VDC and a very low consumption of 0.1mA.
100% compatible UNO module.
Characteristic:
- Operating voltage: 3.3-5 VDC
- Output voltage: 0-1 VDC
- 3-pin connector:
- OUT: output signal
- VCC: Supply voltage
- GND: Ground connection - Test accuracy: ± 1UV INDEX
- Current: 0.06mA (typical), 0.1mA (maximum)
- Wavelength of the response: 200nm-370nm (ultraviolet rays) - Response time: less than 0.5 seconds
- Operating temperature: -20ºC - + 85ºC
- Size: 19.80 x 15mm

Signal generator including the AD9851 chip, it has two sinusoidal outputs and two square outputs.

Arduino MKR WAN 1300 tiene el mismo factor de forma que las otras placas Arduino MKR y ofrece mucha funcionalidad en un paquete muy pequeno. Utiliza el microcontrolador Atmel SAMD21 y el módulo Murata MCWX1ZZABZ LoRa para la conectividad. El MKR WAN 1300 ha sido disenado para conectar proyectos y aplicaciones con conectividad LoRa.

Ever needed a microphone for your project. This tiny little board will fulfill all your needs - it is not only mobile, but as well easy to connect. A low power, efficient, omnidirectional AMP401 microphone has an analog output. It works great for near and long range uses and is particularly suitable for a mobile projects given its extremely low energy consumption. You can use it in a range of applications - we can see it used in smartphones, cameras or electronic nannies.

SparkFun Hamburger speaker is a high quality speaker in a small form and with even smaller price. You wouldn't believe you can get a quality product for less than 7€, right? Well, we couldn't believe that as well, but SparkFun makes that possible.

This fingeprint scanner from ADH-Tech combines a highly precise fingerprint sensor module with an onboard MCU and UART interface enabling trivially very connection to any project.

The scanner independently reads and analyses the fingerprint thanks to an MCU algorithm that can send a converted digital signal to a peripheral serial interface for a data read. The onboard MCU algorithm enables operations such as for example a fingerprint enroll.

The module uses a 24-bit high precision A / D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. Module features: - Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

The module uses a 24-bit high precision A / D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. Module features: - Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

The module uses a 24-bit high precision A / D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. Module features: - Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

Bone Conduction Transducer + MAX98306 Stereo Amplifier features:
- Transducer Bone conduction 8Ohm Speaker 1W + MAX98306 Stereo Amplifier
- Class D 3.7W stereo audio amplifier - MAX98306

The perfect solution for not worrying about the length required on your RGB LED strip, now with a WiFi driver compatible with the eWeLink APP and voice assistants like Google Home or Alexa. Also includes a 24-key IR remote control.

You will be able to turn on and control your strip lights anytime and anywhere, and control it with just a click on your smart phone or tablet via APP eWeLink, or voice assistants, without time and distance limitations.

The Sonoff IFan03 is an intelligent controller for ceiling fans with light that allows us to control it intelligently, either by the eWeLink application, by means of 433MHz RF control or by voice assistants such as Alexa or Google Home.

Create your own scenes, turn on the light and/or the fan and adjust its speed, programming it to the hours you want.

Intelligent 5 metre LED strip by WiFi and RF, great for creating any atmosphere in any room. Change its colour and rhythm from your mobile phone or its remote control. Dance to the rhythm of the lights, copy the colour from your mobile or control the lighting with your voice assistant like Alexa or Google Home. Decorate your home with an infinite number of possible scenes.

This cable is designed to facilitate the extension of the sensor cable, being perfect for applications that require greater distances. They can be joined together to extend your sensors up to a maximum length of 60 metres.

433.92 MHz radio receiver module that allows you to also control it via a radio remote control. You can control each channel either by remote control, the free APP "eWeLink" or with wizards such as Alexa or Google Home. This will allow you to create scenes, schedules, and much more. Its relay supports up to 4 devices simultaneously. Each device can be powered by 5-24 V DC.

SONOFF D1 Smart Dimmer Switch is a smart dimmer switch that offers smart light control solutions perfect for your home or workplace, controlled either by the eWeLink application, via 433MHz RF control or by voice assistants such as Alexa or Google Home.

Create your own scenes, turn the light on at the most appropriate level, or schedule it at the times you want

The Arduino MKR FOX 1200 board offers a practical and cost-effective solution for adding Sigfox connectivity to projects requiring low power. 

This is the MyoWare Muscle Sensor Development Kit, an Arduino-powered electromyography (EMG) sensor kit that gives you the MyoWare, each MyoWare Shield and everything you need to connect them all together.

It can be used to control the microprocessor of the Arduino AVR PIC system and others, or as a digital potentiometer rotating the rotary encoder can be counted in positive and negative, depending on the direction of rotation; with the button of the rotary encoder can be reset to its initial state, which starts counting from 0.

Level sensor for liquids with float. The liquid level sensor acts as a switch. Liquid level float sensors are used when constant control and regulation of the liquid level (water, oil and other fluids) is required such as extraction pumps. The sensor is equipped with a float with a magnet which, acting by the buoyancy force of the fluid, moves along the tube, shortening or opening the reed switch.

It can be used to detect liquid levels that are too high or too low. Ideal for all those applications where the level of non-corrosive liquids such as water tanks or aquariums needs to be monitored. It is made of stainless steel.

ESP32-S3-DevKitC-1-N8R2 general-purpose development board based on the ESP32-S3R2-WROOM-1 chip, Flash 8MB, PSRAM 2MB.

ESP32-S3-DevKitC-1-N8R8 general-purpose development board based on the ESP32-S3R8-WROOM-1 chip, Flash 8MB, PSRAM 8MB.

The Arduino Leonardo is one of the most popular versions of the series, behind only the legendary Uno plate to which it has very similar features (see our comparison below). The board contains a microcontroller ATmega32u4 with the participation of 20 digital inputs/outputs, of which 7 can be used as PWM outputs and 6 analog inputs. The system works with the clock signal with the frequency of 16 MHz, has 32K Flash and 2.5 KB of SRAM RAM.

WT32-SC01 development board with Esp32 from Espressif. 3.5 inch 480 x 320 TFT LCD touch screen, 4MB SPI Flash and 8MB PSRAM.