Micro ATmega32U4 5V 16MHz Development Board
$26.23
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Description
The Micro ATmega32U4-MU is a tiny microcontroller board based on the ATmega32U4. It has 20 digital input/output pins (7 of which can be used as PWM outputs and 12 as analog inputs), a crystal oscillator, a micro-USB connection, an ICSP header and a reset button. With a 16 MHz frequency and 5V operating voltage, this board is similar to the Arduino Leonardo, although the Micro ATmega32U4-MU is more compact (17.78*48.26mm).
The board contains everything needed to support the microcontroller; you just have to connect it to a computer and get started! Its form factor enables it to be easily placed on the circuit board.
Like the Arduino Leonardo, the Micro ATmega32U4-MU has built-in USB connection, eliminating the need for a converter. This allows the Micro to appear to a connected computer as an HID-device, such as a keyboard or mouse, in addition to a COM-port. The board is also able to perform other Arduino Leonardo functions.
Power
The Micro ATmega32U4-MU can be powered via a USB connection.
Power Supply
5V:The regulated power supply used to power the microcontroller and other components on the board. This can come either from VIN via a voltage regulator, or be supplied via USB, or another regulated 5V supply.
3V3:A 3.3V supply generated by the on-board regulator. Maximum current draw is 50mA.
GND:Ground pins.
I/O Pins
Each of the 20 digital pins can be used as an input or output. They operate at 5V. Each pin can provide or receive a maximum of 40 mA, and has an internal pull-up resistor (disconnected by default) of 20-50 k Ohms. In addition, some pins have additional functions
— Serial interface:0(RX) and 1(TX) pins. Used to receive (RX) and transmit (TX) data using the ATmega32U4 hardware serial capability. Note that on the Micro ATmega32U4-MU, the Serial class refers to USB (CDC)-communication, for data transfer on pins 0 and 1, use the Serial1 class.
— TWI:2 (SDA) and 3 (SCL) pins. Support TWI (12C) communication using the Wire library.
— External interrupts:3 (interrupt 0), 2 (interrupt 1), 0 (interrupt 2), 1 (interrupt 3) and 7 (interrupt 4). These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details.
— PWM:3, 5, 6, 9, 10, 11 and 13. Provide 8 bit PWM output with the analogWrite() function.
— SPI:on the ICSP header. These pins support SPI communication using the SPI library. Note that the SPI pins are not connected to any of the I/O pins as they are on the Arduino Uno. They are only available on the ICSP connector.
— Analog inputs:A0 — A5, A6 — A11 (on digital pins 4, 6, 8, 9, 10 and 12). The Micro ATmega32U4-MU has 12 analog inputs (A0 — A11), all of which can also be used as digital i/o. Analog inputs A0 — A5 appear in the same locations as on the Arduino Uno; inputs A6 — A11 are on digital i/o pins 4, 6, 8, 9, 10 and 12, respectively. Each analog input provide 10 bits of resolution (1024 different values). By default, the analog inputs measure from 0 to 5 volts, though it is possible to change the upper end of their range using the AREF pin and the analog Reference() function.
— Reset. A low signal level resets the microcontroller.
LEDs
* RX and TX — flash when data is being transmitted via USB connection.
* ON — power indicator.
* L — LED connection to digital pin 13.
Memory
The ATmega 32U4 microcontroller has 32 KB memory (with 4 KB used by the bootloader). It also has 2.5 KB SRAM and 1 KB EEPROM (which can be read and written with the EEPROM library).
The Micro ATmega32U4-MU has a number of facilities for communicating with a computer, another Arduino device or microcontrollers.
The ATmega32U4 provides serial UART TTL serial communication, which is available on digital pins 0(RX) and 1(TX).
Having hardware support for USB, the ATmega32U4 also allows for serial communication with the computer over a virtual COM port.
The Micro ATmega32U4-MU also acts as a USB 2.0 device, using standard USB COM drivers. The Arduino software includes a serial monitor that allows simple textual data to be sent to and from the board. Which we will do in the example given under the description.
A SoftwareSerial library allows for serial communication on any of the ATmega32U4-MU’s digital pins.
The ATmega32U4 also supports I2C (TWI) and SPI communication. The Arduino software includes a Wire library to simplify use of the 12C bus. The SPI library can be used for SPI communication.
Programming
The board can be programmed with Arduino software, by selecting ATmega32U4 in the Board menu.
The ATmega32U4 microcontroller on the Micro ATmega32U4-MU comes preburned with a bootloader that allows you to upload new code to it without the use of an external hardware programmer.
You can also bypass the bootloader and program the microcontroller through the ICSP (In-Circuit Serial Programming) header.
Automatic Reset
Rather than requiring a physical press of the reset button before an upload, the Micro ATmega32U4-MU is designed in a way that allows it to be reset by Arduino software running on a connected computer. The reset is triggered when the virtual CDC COM port is opened at 1200 baud and then closed. When this happens, the processor will reset, breaking the USB connection to the computer. After the processor resets, the bootloader starts, remaining active for about 8 seconds. The bootloader can also be initiated by pressing the Reset button. Note that when the board first powers up, it will jump straight to the user sketch, if present, rather than initiating the bootloader.
USB Overcurrent Protection
The Micro ATmega32U4-MU has a resettable polyfuse that protects the computer’s USB ports from shorts and overcurrent. Although most computers have their own internal protection, the fuse provides an extra layer of protection. If more than 500mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed.
Microcontroller:ATmega32U4-MU
Power Out:3.3V-180m
5V-800m
Power IN. USB:5V
Power IN. VIN/DC Jack:5V
Power Consumption:5V 220mA
Logic Level:5V
USB:Micro USB
Clock Frequency:16MHz
Operating Supply Voltage:3.3V
Digital I/O:20(7-PWM)
Analog I/O:12
Data RAM Type/Size:2.5Kb
Data ROM Type/Size:1Kb
Interface Type:ISP
Operating temperature:−40㎡°/+85㎡°
PCB size (L*W):48.26*17.78mm
Weight:8.5g
Documents
Dimensional drawing:Click here to open
Pinout:Click here to open
Schematic:Click here to open
Package includes
1 x Micro ATmega32U4 5V 16MHz Development Board
Weight | 0.015 kg |
---|
Customers Also Viewed
3pcs 2x50W TPA3116 AUX+Bluetooth 5.0 HIFI High Power Digital Amplifier Stereo Board AMP Amplificador Home theater without Shell
$54.90Amplifier BoardAdd to cartSpecificationsAudio input:AUX+bluetoothWork voltage:9-24 DCPower:2*50WCooling fin:LargeSpeaker:4-8Ω;30-200WProtection:Overvoltage,undervoltageSize:84*52*24mmFeatures1. This product is full of materials, featuring high performance and high performance price, especially for HIFI music power amplifier with high power and high fidelity.2. TPA3116D2 is a type D amplifier IC launched by TI company, which has very high index parameters.The maximum modulation frequency is 1.2MHZ, and the high …
5PCS USB To TTL Debug Serial Port Cable for Raspberry Pi 3B 2B / COM Port
$20.44Raspberry Pi & Orange PiAdd to cartMore info and driver, please !!!Supports WIN XP/WIN7/ WIN8/ WIN10Reference to WIN10, you can !!!NoteNo driver on raspberry pi 3 model bRaspberry Pi main board is not included!Package included5x USB To TTL Debug Serial Port Cable For Raspberry Pi / COM Port
DIY LED Light Kit ONLY for LEGO 60197 Passenger Train Building Block Bricks Lighting
$32.79DIY Electronic KitsAdd to cartSpecificationInterface:USBColor:As the picture shownThe product is just a light kit, not included the model!!!FitmentONLY For LEGO 60197 Passenger Train Building Block Bricks ToyFeaturesEasy to install.LED powered by USB.Make your model more cool.Package Included1 x LED Light Kit(Model Not Included)
5Pcs M5Stack I/O Hub 1 to 6 Expansion Board Grove I/O interface for Blockly Development IoT MEGA328 Module for Arduino
$75.21Converter BoardAdd to cartDescriptionPbHUB, is a expander for singel-bus GROVE PORTB(Black port on M5GO Base). 1-to-6. PortB can be used as GPIO and analog in two data lines connected to GPIO36 and GPIO26 on ESP32. Same as PaHUB, it provides a solution for mutiple device control by PORTB. With PbHUB each of the IO can be configurated to …
10Pcs Green LED Power Symbol Momentary Latching Switch LED Light Push Button SPST
$20.86Electronic Accessories & SuppliesAdd to cart10Pcs Green LED Power Symbol Momentary Latching Switch LED Light Push Button SPSTDecriptionLatching type:Push it– on, push it again — offLED color:GreenSize(H*D):1.4 x 1cm / 0.55inch x 0.39inch (approx)Quantity:10 pcsFunction:MomentaryLED light voltage:3.2VSwitch voltage:12VMaximum operating current:20mAWith led light, with power symbol, light touch switchEasy to use and installNote1. Please check the picture and part number carefully …
10Pcs Green LED Power Symbol Momentary Latching Switch LED Light Push Button SPSTRead More
100Pcs Red Heat Shrink Solder Sleeve Seal Wire Splice Butt Connector AWG 22-18GA
$72.89ConnectorsAdd to cartName:(100) Heat Shrink Solder Sleeve Seal Wire Splice Butt Connector AWG 22-18GA RedMaterial:Tinned CopperColor:RedShrinking Ratio:2:1Working temperature:-55℃~125℃Shrink temperature:80℃Solder melting temperature:138℃Complete solder melting temperature:160℃Cable cross-section:0.5mm-1.0 mmDiameter:3mm/0.12inch(appr.)FeaturesPlacement on Vehicle:Left, Right, Front, Rear.Solder and seal and with advanced waterproof function.Polyolefin tubing in outside and hot melt adhesive in inside.Can be ideal used in marine and automobile applications.Improve pullout strength, …
100Pcs Red Heat Shrink Solder Sleeve Seal Wire Splice Butt Connector AWG 22-18GARead More
Reviews
There are no reviews yet.