Arduino Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs ,6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
- Microcontroller: ATmega328P
- Operating Voltage: 3.3/5V
- Input Voltage: 1.8-5V
- DIO Pins: 14 (of which 6 provide 'PWM' output)
- AIO Pins: 6
- DC Current per I/O Pin: 20 mA (40mA peak)
- DC Current for 3.3V Pin: 50 mA
- Maximum Board Load Current: 200mA
- Flash Memory: 32KB (ATMega328P) of which 0.5 KB used by bootloader
- SRAM: 2KB (ATMega328P)
- EEPROM: 1KB (ATMega328P)
- Clock Speed: 16MHz
- System Bus: 8-bit
- USART: 1
- Serial TTL, SPI, I2C support
- Timers - 3
- External Interrupts, Supply & Clock support
The Arduino Nano is a small, complete, breadboard-friendly board based on the ATMega328P (Arduino Nano 3.x). It has more or less the same functionality as of the Arduino Duemilanove, but in a different package. It lacks the DC power jack and works with a Micro USB cable instead of a 'Type B' one.
- Microcontroller: ATmega328
- Architecture: AVR
- Operating Voltage: 5V
- Flash Memory: 32KB of which 2 KB used by bootloader
- SRAM: 2KB
- Clock Speed: 16 MHz.
- AIO Pins: 8
- DIO Pins: 22 (6 of which are PWM)
- EEPROM: 1KB
- Max DC Current per I/O Pins: 40 mA (I/O Pins)
- Input Voltage: 1.8-5.5V
- PCB Size: 18 x 45mm
The ULN2003 stepper motor driver PCB provides a direct drive interface between your microcontroller and stepper motor. The PCB provides 4 inputs for connection to your microcontroller, power supply connection for the stepper motor voltage, and ON/OFF jumper, a direct connect stepper motor header and 4 LEDs to indicate stepping state.
Stepper Motor Connection:
Connect stepper motor to this header. If you use one of our stepper motors they will just plug directly into the header. If you have another brand without the correct header plug, you could solder the wires directly to the back of the PCB.
Step State LEDs:
Indicate which channel is active.
The Arduino Mega is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button.