Core (mCookie)

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Microduino-Core is an 8-bit microcontroller development board, with the core of Atmel ATmega328P series. It is a open-source, compatible-with-Arduino UNO Microduino-Core controller module.

Features

  • Small, cheap, stackable, open, and compatible-with-Lego.
  • The open-source hardware circuit design and compatible-with-Arduino programming environment;
  • The unified mCookie interface specification and abundant peripheral modules, which make it can be quickly extended and connected with other modules and sensors which meet the Microduino/mCookie interface specification, conveniently and flexibly;

Specification

  • There are two versions of mCookieo-Core now, according to different cores and clock frequency:
Type Flash SRAM EEPROM Clock Frequency Working Voltage
Atmega328P@16M, 5V 32K 2K 1K 16M 5.0V
ATmega328P@8M, 3V3 32K 2K 1K 8M 3.3V
  • There are 22 Digital I/O:
    • On the module labeled D0, D1, D2~D13 and A0~A7, during which A6 and A7 can only be taken as input, not output.
  • There are 8 Analog I/O:
    • On the module labeled A0~A7:
    • Each provides 10 resolution ratio(that is 0~1024). By default, the measurement range of the analog voltage is the value from GND to VCC;
    • Please refer to analogRead()function for details.
  • There are 6 PWM supporters:
    • On the module labeled D3, D5, D6, D9, D10, and D11 respectively.
    • Please refer to analogWrite() function for details.
  • There is one serial port supporter:
    • On the module labeled Serial[D0(RX), D1(TX)].
    • Connected with USBTTL module will occupy D0 and D1. If ports D0 and D1 are also occupied by other modules, the communication with USBTTL will be abnormal and the program will be unable to be downloaded.
  • There is one SPI supporter:
    • On the module labeled D13(SCK), D12(MISO), D11(MOSI), and D10(SS).
  • There is one I2C supporter:
    • On the module labeled SDA(A4), SCL(A5).
  • There are 2 external interrupt supporter:
    • On the module labeled D2(interrupt0) and D3(interrupt1).
    • Please refer to attachInterrupt()function for details.
  • Support ISP download function.

 

  • Description of 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 (AIN1)PD7 D7 D7
4 (ICP)PB0 D8 D8
5 (OC1A)PB1 D9 D9 yes
6 (OC1B/SS)PB2 D10 D10 yes SS
7 (OC2A/MOSI)PB3 D11 D11 yes MOSI
8 (MISO)PB4 D12 D12 MISO
9 (SCK)PB5 D13 D13 SCK
10 AREF AREF
11 (ADC0)PC0 A0 D14 A0
12 (ADC1)PC1 A1 D15 A1
13 (ADC2)PC2 A2 D16 A2
14 (ADC3)PC3 A3 D17 A3
15 (ADC4/SDA)PC4 SDA D18 A4 SDA
16 (ADC5/SCL)PC5 SCL D19 A5 SCL
17 (ADC6) A6 D20(only input) A6
18 (ADC7) A7 D21(only input) A7
19 (RXD)PD0 D0 D0 0(RX)
20 (TXD)PD1 D1 D1 0(TX)
21 (INT0)PD2 D2 D2 0
22 (OC2B/INT1)PD3 D3 D3 1 yes
23 (XCK/T0)PD4 D4 D4
24 (OC0B/T1)PD5 D5 D5 yes
25 (OC0A/AIN0)PD6 D6 D6 yes
26 RESET RST
27 GND GND GND