1# Copyright (C) 2021 Peter Johanson 2# SPDX-License-Identifier: Apache-2.0 3 4description: | 5 GPIO pins exposed on Sparkfun Pro Micro (and compatible devices) headers. 6 7 The Sparkfun Pro Micro layout provides two headers, along opposite 8 edges of the board. 9 10 Proceeding counter-clockwise: 11 * A 12-pin Power and Digital Input header. This has input signals 12 labeled from 0 at the top through 9 at the bottom. 13 * An 12-pin Power and Digital/Analog Input header. This 14 has four power pins, followed by eight inputs, with a 15 non-monotonically decreasing numbering. 16 17 This binding provides a nexus mapping for 18 pins, as depicted below: 18 19 1 D1/TXO RAW - 20 0 D0/RXI GND - 21 - GND RST - 22 - GND VCC - 23 2 D2 D21/A3 21 24 3 D3 D20/A2 20 25 4 D4/A6 D19/A1 19 26 5 D5 D18/A0 18 27 6 D6/A7 D15 15 28 7 D7 D14 14 29 8 D8/A8 D16 16 30 9 D9/A9 D10/A10 10 31 32 A graphical datasheet of the headers can be seen here: 33 https://cdn.sparkfun.com/assets/f/d/8/0/d/ProMicro16MHzv2.pdf 34 35compatible: "sparkfun,pro-micro-gpio" 36 37include: [gpio-nexus.yaml, base.yaml] 38
