Pro Micro - 3.3V/8MHz - Atmega32u4 module - SparkFun DEV-12587

Index: SPF-01592 EAN: 5904422303730

Module based on the Arduino Leonardo, is characterized by small size. It has the AVR Atmega32U4 microcontroller. It is equipped with 20 digital inputs/outputs, as well as popular communication interfaces. It works with voltages of 3.3 V. This version does not have soldered connectors.

Pro Micro - 3.3V/8MHz - Atmega32u4 module - SparkFun DEV-12587
€23.90
€19.43 tax excl.
Waiting time: 4-6 weeks
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Manufacturer: SparkFun

Specification

  • Supply voltage: 3.35 V to 12 V
  • Microcontroller:ATmega32u48MHz
  • Pins I/O: 20
  • PWM channels: 5
  • Number of analog inputs: 12
  • Serial interfaces: UART, SPI, I2C
  • External interrupts
  • USB connector for programming
  • Dimensions: 33 x 18 mm

Description

Pro Micro similar to the Micro version, is based on the Leonardo module. The system is characterized by small size: 33 x 18 mm. It uses the Atmega32U4 microcontroller from AVR family. It is equipped with 20 digital inputs/outputs, 5 of them can be used as PWM outputs and 12 as analog inputs. The system works with voltages of 3.3V, it works with a clock signal with a frequency of 8 MHz.

  

Unlike the Arduino Micro, it does not have connectors and reset button. The user decides which leads you will be needed, so the board can maintain its small size.

 

Attention!

Before connecting, readthe installation guide.

 

Power

The module can be powered via micro USB cable and the external device, for example, the AC adapter, the battery or the rechargeable battery. If a supply voltage is higher than 3.3 V, it must be connected to the RAW lead which is connected to the stabilizer. VCC is directly connected to the pins of the microcontroller, connection of the voltage above 3.3 V may permanently damage the chip.

Inputs/outputs

Pro Micro has 20 digital outputs input/output (I/O). Each pin allows for current consumption with a maximum voltage of 40mA, which allows direct connection of LEDs with the resistors and controlling other chips. In addition to standard I/O some of the leads also have special functions.

Programming

Creating and downloading software is allowed by the free environment supplied by the manufacturer. Implemented bootloader allows you to send the program directly via USB cable. A detailed description can be found in the instructions supplied by SparkFun.

Specification ATmega32u4

  • Working voltage: 3.3 V
  • SRAM: 2.5 KB
  • Flash memory: 32 KB
  • EEPROM: 1 KB
  • A/C converter: 10-bit, 4 channels
  • Number of I/O pins: 14
  • The number of PWM channels: 5
 

Details inthe documentation.

 

Voltage to 3.35 V
Voltage from 12.0 V
Voltage output from 3.3 V
Output voltage to 3.3 V
Nominal output voltage 3.3 V
UC - Microcontroller Atmega32U4
UC - Core 8-bit AVR
UC - EEPROM 1 kB
UC - Flash 32 kB
UC - RAM 2,5 kB
UC - core 1. Single Core
UC - Digital pins 20
UC - analog in 12
UC - freq 8 MHz
UC - A/C 10-bit
UC - PWM 7
UC - USB microUSB
UC - I2C yes
UC - UART yes
UC - SPI interface yes
Package width 5 cm
Package height 8.7 cm
Package depth 0.1 cm
Package weight 0.002 kg

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Product reviews

Pro Micro - 3.3V/8MHz - Atmega32u4 module - SparkFun DEV-12587

4.5/5

Average grade

2

Customers opinion
The following opinions are collected
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Reviews:

Yann 19.03.2023 Confirmed purchase
Very good, but the USB type is problematic, kinda outdated...
Kacper 06.03.2024 Confirmed purchase

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