CoreUSB module (DIY)

Regular price $12.00 Sale

Microduino-CoreUSB 8-bit microcontroller development board with the ATMEGA32U4 series as the core,and it is a open-source controller module compatible with Arduino Leonardo.

The difference between Microduino-CoreUSB and Microduino-core and Microduino-core+ is that the Microduino-CoreUSB contains a microcontroller and USB communication, equivalent to (Microduino-core + Microduino-USBTTL), and its pins conform to the Microduino specification. Microduino uses java , the development environment of C language, same with Arduino. Players can use Arduino IDE, cooperating with software such as Flash or Processing, with Microduino and other electronic components, modules and sensors to make many funny interactive works.

Features

  • It contains microcontroller and USB communication, so you can directly download programs through the USB port, having no more need of Microduino-USBTTL;
  • USB overcurrent protection;
  • Small, cheap, stackable, and open;
  • Open-source hardware circuit design, and programming development environment compatible with Arduino;
  • Same with Arduino, Microduino can use ISP download way, to program to「bootloader」 flexibly;
  • Unified Microduino interface specification, and abundant peripheral modules, can be connected and extended quickly, conveniently, and flexibly with other modules and sensors conforming to the Microduino interface specification;
  • 2.54 spacing Female Header interface is convenient to integrate into the hole plate.

Specification

Flash 32 KB(ATMEGA32U4). 4 KB during it is used to guide the program.
SRAM 2.5 KB(ATMEGA32U4)
EEPROM 1 KB(ATMEGA32U4)
Clock speed 16 MHz

 

  • Digital I/O There are 22 digital input/output terminals:
    • Labeled on the module of D0~D13, and A0~A7.
  • Analog I/O There are 10 analog input/output:
    • Labeled on thee module of A0, A1, A2, A3, A6, A7, D8(A8), D9(A9), D3(A10) and D4(A11);
    • Each offers a 10-bit resolution( that is 0~1024). By default, the measurement range of the analog voltage is the value from GND to VCC;
    • Please refer toanalogRead() function.
  • PWM support. There are 8:
    • Labeled on the module of respectively SCL, D3, D4, D5, D6, D7, D8 and D9.
    • Please refer toanalogWrite() function.
  • Serial port support. There are 2:
    • USB virtual serial port Serial;
    • Labeled on the module of Serial1 [D0(RX), D1(TX)].
  • SPI support. There is one:
    • Labeled on the module of D13(SCK), D12(MISO), D11(MOSI), D10(SS).
  • I2C support. There is one:
    • Labeled on the module of SDA(D18),SCL(D19).
  • External interrupt support. There are 5:
    • Labeled on the module of SCL(interrupt0), SDA(interrupt1), D0(interrupt2), D1(interrupt3), and D2(interrupt4).
    • Please refer toattachInterrupt() function.
  • Support the ISP download function.
  • Support AREF end.
  • Instruction of the pins:
Pin Original Pin Name Map Pin Name Digital Pin Analog Pin interrupt PWM Serial SPI I2C Power
1 VCC +5V +5V
2 VCC +3V3 +3.3V
3 (OC0A/OC1C/#RTS)PB7 D7 D7 yes
4 (OC1B/0C4B/ADC13)PB6 D8 D8 A8 yes
5 (OC1A/#OC4B/ADC12)PB5 D9 D9 A9 yes
6 (SS)PB0 D10 D10 SS
7 (PDI/MOSI)PB2 D11 D11 MOSI
8 (PDO/MISO)PB3 D12 D12 MISO
9 (SCK)PB1 D13 D13 SCK
10 AREF AREF
11 (ADC7/TDI)PF7 A0 D14 A0
12 (ADC6/TDO)PF6 A1 D15 A1
13 (ADC5/TMS)PF5 A2 D16 A2
14 (ADC4/TCK)PF4 A3 D17 A3
15 (SDA/INT1)PD1 SDA D18 1 SDA
16 (OC0B/SCL/INT0)PD0 SCL D19 0 yes SCL
17 (ADC1)PF1 A6 D20 A6
18 (ADC0)PF0 A7 D21 A7
19 (RXD1/AIN1/INT2)PD2 D0 D0 2 1(RX)
20 (TXD1/INT3)PD3 D1 D1 3 1(TX)
21 (INT6/AIN0)PE6 D2 D2 4
22 (T1/#OC4D/ADC9)PD6 D3 D3 A10 yes
23 (T0/OC4D/ADC10)PD7 D4 D4 A11 yes
24 (OC3A/#OC4A)PC6 D5 D5 yes
25 (ICP3/CLK0/OC4A)PC7 D6 D6 yes
26 RESET RST
27 GND GND GND