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Microduino Core32u4 module uses the ATMEGA32U4 series 8 bits MCU as the core, open source, and the Arduino UNO compatible controller module.
The difference between Microduino-Core32u4 and Microduino-core/Microduino-core+ is that it contains the microcontroller and USB communication, the pin uses microduino specification.
Microduino Core32u4 use the same Java/C development environment with Arduino. The player can use Arduino IDE and with other software Flash or Processing to do the development. Also can use Microduino and other electronic components, modules, sensors, make a lot of interesting product.
Features
- Contains the mocrocontroller and USB, use the USB to downlaod and no need Microduino-FT232R anymore；
- USB overcurrent protection ；
- Small, cheap, stackable, opened platfrom;
- Open source hardware circuit design, compatible with the Arduino IDE development environment for programming;
- Use ISP download mode, burn bootloader easily；
- Define unified interface Microduino specification and contain rich peripheral modules. Set up the quick connection with other Microduino modules and sensors easily and flexibly.
- 2.54 pitch row female connector for easy integration into breadboard.
Specifications
- Digital I/O port 0~13，A0~A5。
- On Microduino-Core32U4, the ports are RX0, TX1, D2~D13, A0~A5. 20 IO ports are defined as input/output port.
- Analog I/O analogy input port is A0~A5；
- Each port provides 10-bit resolution (that is 1024 values). By default, the measuring range of voltage is from the power supply voltage to GND.
- Supports eight PWM output ports that are SCl, 3, 4, 5, 6, 7, 8, 9；
- IIC interface, SDA, SCL；
- Supports ISP download function；
- Serial port：RX0 (receive), TX1 (sent)
- If the port RX0 and TX1 is occupied, it will impact the USB communication, the new program can't be download, serial communication will also be stopped.
- One external interrupt D2.
| Flash |
32 KB（ATMEGA32U4），Among 4KB use to bootloader
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| SRAM |
2.5 KB（ATMEGA32U4）
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| EEPROM |
1 KB（ATMEGA32U4）
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| Clock frequency 16 MHz
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Document
Eagle PCB File:Microduino-core32U4.zip
- Main components used in Microduino-core32U4
Development
- Configure Microduino development environment
- 1. Usage Arduino IDE：Microduino Core32u4 uses the same IDE development environment with Arduino, please download Arduino IDE firstly 【Arduino IDE Download】.
Detailed introduction for Arduino IDE, please refer to the tutorial. The player can use Arduino IDE and with other software Flash or Processing to do the development. Also can use Microduino and other electronic components, modules, sensors, make a lot of interesting product.
- 2. Use Arduino IDE to do the Microduino programing：Player need download Microduino support package for Arduino IDE firstly, and copy to corresponding folder.【Local download】 Player can refer the tutorial to configure the Arduino IDE.
- 3. Download program to Microduino-core32U4
Burn Microduino BootLoader
If the player was a Microduin Core32U4 empty board, you need to use the Arduino UNO or another Microduino to burn bootloader for another piece of Microduino empty board. Player can refer to the tutorial "Do you know how to use the Arduino UNO to burn bootloader for Microduino Core?
Various version's Microduino-Core uses different bootloader. Initial bootloader optiboot is designed for ATmegaX8 series, which occupies only 512 bytes flash.
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