Pro Micro (16MHz)
The Pro Micro (16MHz) is a compact board that trades a smaller size for fewer IO pins than the Arduino Mega boards. It is a great choice when space is at a premium.
Warning
Some lower-cost Pro Micro clones, particularly those purchased from AliExpress, are 8MHz 3.3V variants which are not supported by MobiFlight. Always check the product listing carefully to ensure you are ordering the 16MHz version.
Purchasing a Pro Micro from the MobiFlight Shop ensures you will get a board running at 16Mhz.
Specifications
- 12 digital IO pins, 5 with PWM support.
- 9 analog inputs (can be used as digital inputs).
| Device | Limit | Notes |
|---|---|---|
| Analog input | 9 | |
| Button | 18 | |
| Digital Input Multiplexer | 6 | |
| Encoder | 9 | |
| Input shift register | 6 | Six chains of shift registers, 32 bits each (2x16 or 4x8 bit shift registers). |
| LCD Display | 2 | |
| LED / Output | 18 | |
| LED 7-Segment | 6 | 6 TM1637 modules, or 6 chains of MAX7219 modules, or a mix of both. A 5V power supply is required when connecting more than one display. |
| Output shift register | 6 | Six chains of shift registers, 32 bits each (2x16 or 4x8 bit shift registers). |
| Servo | 8 | |
| Stepper | 4 |
Pinout
