Arduino Pro Mini (ATmega328P)
Minimalist 8-bit AVR microcontroller board based on the ATmega328P running at 16 MHz (5V) or 8 MHz (3.3V) with no onboard USB, optimized for permanent installation and low power.
Aliase:Pro Mini, Arduino Mini 328, SparkFun Pro Mini
Arduino Pro Mini Pinout & Headers
34 Pins
Pinout Table34
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | TX0 | Digital | PD1TXDPCINT17 |
| 2 | RX1 | Digital | PD0RXDPCINT16 |
| 3 | RESET | Reset | PC6RESET (Active Low)PCINT14 |
| 4 | GND | Ground | Ground (0V) |
| 5 | D2 | Digital | PD2INT0PCINT18 |
| 6 | ~D3 | Digital | PD3OC2B (PWM)INT1PCINT19 |
| 7 | D4 | Digital | PD4T0 / XCKPCINT20 |
| 8 | ~D5 | Digital | PD5OC0B / T1 (PWM)PCINT21 |
| 9 | ~D6 | Digital | PD6OC0A (PWM)AIN0PCINT22 |
| 10 | D7 | Digital | PD7AIN1PCINT23 |
| 11 | D8 | Digital | PB0CLKO / ICP1PCINT0 |
| 12 | ~D9 | Digital | PB1OC1A (PWM)PCINT1 |
| 13 | RAW | Power | Power Input RAW (5V-12V DC) |
| 14 | GND | Ground | Ground (0V) |
| 15 | RESET | Reset | PC6RESET (Active Low)PCINT14 |
| 16 | VCC | Power | Power Rail VCC (+3.3V / +5V) |
| 17 | A3 | Analog | PC3D17ADC[3]PCINT11 |
| 18 | A2 | Analog | PC2D16ADC[2]PCINT10 |
| 19 | A1 | Analog | PC1D15ADC[1]PCINT9 |
| 20 | A0 | Analog | PC0D14ADC[0]PCINT8 |
| 21 | D13 | Digital | PB5SPI SCKLED_BUILTINPCINT5 |
| 22 | D12 | Digital | PB4SPI CIPOPCINT4 |
| 23 | ~D11 | Digital | PB3SPI COPIOC2A (PWM)PCINT3 |
| 24 | ~D10 | Digital | PB2SPI SSOC1B (PWM)PCINT2 |
| 25 | A4 | Analog | PC4D18ADC[4]I2C SDAPCINT12 |
| 26 | A5 | Analog | PC5D19ADC[5]I2C SCLPCINT13 |
| 27 | A6 | Analog | ADC[6] (Analog Input Only) |
| 28 | A7 | Analog | ADC[7] (Analog Input Only) |
| 29 | DTR | Digital | Auto-Reset via 0.1µF to Reset |
| 30 | TXD | Digital | PD1UART TX (Connect to FTDI RX)PCINT17 |
| 31 | RXD | Digital | PD0UART RX (Connect to FTDI TX)PCINT16 |
| 32 | VCC | Power | +3.3V or +5V Power Supply from Programmer |
| 33 | GND | Ground | Ground (0V) |
| 34 | BLK | Ground | Ground (0V - FTDI Black Wire) |