Adafruit ItsyBitsy Atmega32U4 3.3V 8MHz Microcontroller Board Products
Created:
10Sep2024 22:14:43 UTC
2024-09-10T22:14:43Z
Updated:
17Sep2024 05:43:48 UTC
2024-09-17T05:43:48Z
Description
The Adafruit ItsyBitsy 32U4 3.3V 8MHz microcontroller board has the ATmega32U4 MCUMicrocontroller Unit broken out in a small form factor (1.4in x 0.7in) to fit inside an enclosure. The ATmega32U4 chip has a built-in USB controller where the board has a Micro-B USB connector for both power and programming.
- Processor
- The ItsyBitsy has an 8-bit AVRAVR microcontrollers derives its name from its developers and stands for, Alf-Egil Bogen and Vegard Wollan RISC microcontroller, and is also known as Advanced Virtual RISC. ATmega328P processor with Advanced RISCReduced Instruction Set Computer architecture. The 3.3V board version runs at 8MHz, half the speed of the 5V board version. A slower resonator was put on the 3.3V board to guarantee safe operation of the ATmega32U4 (the maximum frequency for safe operation is dependent on the power supply VCC according to the ATmega32U4 specs).
- Memory
-
- 28KB Flash
- 1KB EEPROMElectrically Erasable Programmable Read-Only Memory
- 2KB SRAMStatic Random Access Memory
- I/OInput/Output
-
- 1x USB Micro-B connector (USB 2.0 Full/Low speed)
- 10x Digital I/OInput/Output with 4x PWMPulse-Width Modulation (3.3V Logic)
- 6x analog pins 10-bit ADCAnalog-to-Digital Converter (ADC, A/D, or A-to-D) (0V to 3.3V range)
- Communication Interfaces (3.3V Logic): 1x UARTUniversal Asynchronous Receiver-Transmitter, 1x I2CInter-Integrated Circuit. Also referred to as IIC or I2C., and 1x SPISerial Peripheral Interface
- User Interface
-
- 1x Reset Button
- 1x User Red LED connected to Pin #13
- Power
-
The board can be powered with either USB or external source (such as a battery) into BAT pin - it will
automatically switch over. The board has a 3.3V power regulator with 500mA output capability,
ultra-low dropout, up to 6V input, reverse-polarity
protection, with thermal and current-limit protection. There are 4 power pins on the
board: BAT, USB, GND, and Vhigh.
- BAT is the battery input (3.5V-6V DC) for an alternative power source to USB.
- USB is the same pin as the Micro-B USB connector's 5V USB power pin. This should be used as an output to get 5V power from the USB port.
- GND is the common/ground/0V reference.
- Vhigh is an output pin that gives you the higher voltage from BAT or USB, for driving LEDs, servos, and other high current devices.
- Board Size
- 35.0mm x 18.0mm (1.4in x 0.7in)
- Documentation
Products
Adafruit 3675 ItsyBitsy ATmega32u4 - 3V 8MHz Microcontroller Board
Package includes:
- 1x ItsyBitsy board
- 3x 16-Pin Straight Male Header
Price:
$9.95(Updated 10Aug2024 08:44:582024-08-10T08:44:58Z UTC UTC)
Adafruit 3675 ItsyBitsy ATmega32u4 - 3V 8MHz Microcontroller Board
Package includes:
- 1x ItsyBitsy board
- 3x 16-Pin Straight Male Header
Price:
$9.95(Updated 08Aug2024 22:18:082024-08-08T22:18:08Z UTC UTC)
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