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header-product Development Board Arduino Leonardo
41.99 €

Development Board Arduino Leonardo

Development Board Arduino Leonardo Photo 1
Development Board Arduino Leonardo Photo 2
Development Board Arduino Leonardo Photo 3
Development Board Arduino Leonardo Photo 4
Development Board Arduino Leonardo Photo 1
Development Board Arduino Leonardo Photo 2
Development Board Arduino Leonardo Photo 3
Development Board Arduino Leonardo Photo 4
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Development Board Arduino Leonardo

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Short description

The Arduino Leonardo development board features the ATMega32u4 microcontroller with a frequency of 16 MHz. It has 32 KB of flash memory, 2.5 KB of SRAM, and 1 KB of EEPROM. The board operates at 5 V with a DC input voltage range of 7-12 V and can handle input voltages up to 20 V. Its compact dimensions of 53.3 x 68.6 mm and lightweight design (20 g) make it ideal for various projects. The Leonardo is perfect for USB applications due to its built-in USB communication capabilities.
Available at price 41.99 €: 21 pcs.
Total available for order: 23 pcs.
Warranty: 2 Years
SKU: 4146664
Manufacturer: Arduino
free shipment

Cheapest delivery:

Latvijas Pasts pakomāts

Pick-up points

Latvijas Pasts pakomāts

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
23.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
28.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.03 kg)
Parcel couriers
Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa
28.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
payment
Payment Methods:
Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay
Available for private customers at price 42.99 €: 1 pcs.
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Product information

Description

The Arduino Leonardo is a development board based on the ATmega32u4 microcontroller running at 16 MHz. It integrates 20 digital I/O pins (7 PWM-capable), 12 analog inputs, 32 KB flash memory, 2.5 KB SRAM and 1 KB EEPROM. The board includes a micro USB connector, power jack, ICSP header and reset button and can be powered via USB, an AC-to-DC adapter or battery. Built-in USB communication allows the Leonardo to present itself to a connected computer as a virtual COM port and also as USB HID devices such as a keyboard or mouse.

Advantages

The Leonardo’s ATmega32u4 with native USB avoids the need for a secondary USB-to-serial processor, simplifying the design and enabling direct USB device emulation. Compact dimensions (53.3 x 68.6 mm) and light weight (about 20 g) make the board convenient for embedded and portable projects. Standard power specifications (operating at 5 V, recommended input 7–12 V) and common interfaces (digital, analog, ICSP) provide compatibility with existing Arduino shields and many peripherals.

Suitable for

  • USB HID projects (keyboard, mouse emulation)
  • Prototyping microcontroller-based devices
  • Educational electronics and workshops
  • Embedded projects requiring compact, low-weight boards

Key specifications

  • Microcontroller: ATmega32u4
  • Clock speed: 16 MHz
  • Flash: 32 KB; SRAM: 2.5 KB; EEPROM: 1 KB
  • Digital I/O: 20 pins (7 PWM outputs)
  • Analog inputs: 12
  • Operating voltage: 5 V
  • Input voltage (recommended): 7–12 V; maximum rated input up to 20 V
  • Interfaces: micro USB, power jack, ICSP header, reset button
  • Dimensions: 53.3 x 68.6 mm; Weight: ~20 g
  • Manufacturer: Arduino; MPN: A000057; EAN: 8058333491141

How to use

Connect the Leonardo to a computer via a micro USB cable to program it using the Arduino IDE and to provide power. Alternatively, supply power through the barrel power jack or an appropriate battery within the recommended voltage range. Select the correct board and port in the IDE, upload sketches as usual, and use the available digital and analog pins for sensors, actuators and communication. When using USB HID features, configure the sketch to emulate keyboard or mouse behavior; the board will enumerate as the chosen device when connected.

Usage recommendations

Use a stable 7–12 V power source when powering through the barrel jack and avoid supplying voltages above the board’s rated maximum. For reliable USB HID operation, test device enumeration on the target host system and ensure sketches properly handle USB reconnection and debouncing of input events.
All features
Weight:
0.02 kg
Flash memory:
0.032 MB
Form factor:
Arduino
Ethernet LAN:
No
Wi-Fi:
No
Operating voltage:
5 V
DC input voltage:
7-12
USB ports quantity:
1
Microcontroller model:
ATMega32u4
Microcontroller frequency:
16 MHz
SRAM (Static Random Access Memory):
2.5 KB
EEPROM (Electrically Erasable Programmable Read-Only Memory):
1 KB
Number of analog I/O pins:
12
Number of digital I/O pins:
20
PWM digital I/O pins:
7
Input voltage (max):
6 - 20
DC current per I/O pin:
40 mA
Board dimensions:
53.3 x 68.6

Description

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Stock data
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WH94 1 09.07.2026 Best delivery 42.99 €
WH354 1 16.07.2026 43.49 €
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Delivery Date: 23.07.2026
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Customer reviews

Customer questions

FAQ

How much does the Development Board Arduino Leonardo cost, and is it available for purchase?

The price is 41.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 23 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Arduino products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Arduino service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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