| Parameter | Details | |--------------------|----------------------------------| | Microcontroller | ATmega32U4 (5V logic) | | Clock Speed | 16 MHz | | Digital I/O Pins | 18 (D0–D17) | | Analog Inputs | 6 (A0–A5, shared with D14–D19) | | PWM Pins | 6 (D3, D5, D6, D9, D10, D12) | | Hardware Serial | 1 (RX/D0, TX/D1) | | I²C | 1 (D2/SDA, D3/SCL) | | SPI | 1 (D14/MISO, D15/SCK, D16/MOSI) | | USB Connector | Micro-B (directly on board) | | Voltage Regulator | 5V (input 6–16V) | | Dimensions | 33.0mm x 17.8mm | | Mounting Holes | 2 (M2 or M2.5, unplated) |
Platforms like GitHub and GitLab host numerous community-verified libraries specifically optimized for custom mechanical keyboards (e.g., the Keebio or gitbrent Eagle libraries), which often feature specialized footprints for the Pro Micro. Step-by-Step Installation in Autodesk Eagle
Before routing a single trace, print your PCB layout on a piece of paper at a . Take a physical Pro Micro board and press the pins through the paper to ensure the hole spacing and row width match perfectly. Through-Hole vs. Socket Headers arduino pro micro eagle library
If the Eagle library feels limited, consider:
You can create the library file directly by saving the XML code below. Through-Hole vs
Keep high-frequency traces away from the onboard crystal, if possible. 4. Troubleshooting: Footprint Misalignment If you find that your Go to product viewer dialog for this item.
0.1 inches (2.54 mm) — standard breadboard spacing. Row Spacing: 0.6 inches (15.24 mm) from center to center. A0 (on left) D15
RAW, GND, RST, VCC, TX, RX, GND, SCL, SDA, A3, A2, A1, A0 (on left) D15, D14, D16, D10, D9, D8, D7, D6, D5, D4, LED, D12, GND, RST (on right)