Add Waveshare RP2040 Matrix (#2113)

Fixes #2033

package/package_pico_index.template.json

@@ -221,6 +221,9 @@
                   {
                      "name": "Waveshare RP2040 One"
                   },
+                  {
+                     "name": "Waveshare RP2040 Matrix"
+                  },
                   {
                      "name": "Waveshare RP2040 Plus 4MB"
                   },

tools/makeboards.py

@@ -466,6 +466,7 @@ MakeBoard("viyalab_mizu", "Viyalab", "Mizu RP2040", "0x2e8a", "0x000a", 250, "VI
 # Waveshare
 MakeBoard("waveshare_rp2040_zero", "Waveshare", "RP2040 Zero", "0x2e8a", "0x0003", 500, "WAVESHARE_RP2040_ZERO", 2, "boot2_w25q16jvxq_4_padded_checksum")
 MakeBoard("waveshare_rp2040_one", "Waveshare", "RP2040 One", "0x2e8a", "0x103a", 500, "WAVESHARE_RP2040_ONE", 4, "boot2_w25q16jvxq_4_padded_checksum")
+MakeBoard("waveshare_rp2040_matrix", "Waveshare", "RP2040 Matrix", "0x2e8a", "0x103a", 500, "WAVESHARE_RP2040_MATRIX", 2, "boot2_w25q16jvxq_4_padded_checksum")
 MakeBoard("waveshare_rp2040_plus_4mb", "Waveshare", "RP2040 Plus 4MB", "0x2e8a", "0x1020", 500, "WAVESHARE_RP2040_PLUS", 4, "boot2_w25q080_2_padded_checksum")
 MakeBoard("waveshare_rp2040_plus_16mb", "Waveshare", "RP2040 Plus 16MB", "0x2e8a", "0x1020", 500, "WAVESHARE_RP2040_PLUS", 16, "boot2_w25q080_2_padded_checksum")
 MakeBoard("waveshare_rp2040_lcd_0_96", "Waveshare", "RP2040 LCD 0.96", "0x2e8a", "0x1021", 500, "WAVESHARE_RP2040_LCD_0_96", 2, "boot2_w25q16jvxq_4_padded_checksum")

variants/waveshare_rp2040_matrix/pins_arduino.h

+#pragma once
+
+// Waveshare RP2040 Matrix
+// https://files.waveshare.com/upload/4/49/RP2040-Matrix.pdf
+// Pins taken from https://github.com/earlephilhower/arduino-pico/files/14470983/WaveshareRP2040Matrix.hs.txt
+
+// NeoPixel
+#define PIN_NEOPIXEL   (16u)
+#define NUM_NEOPIXEL   (25u)
+//#define LED_BUILTIN PIN_NEOPIXEL
+
+// Serial1
+#define PIN_SERIAL1_TX (0u)
+#define PIN_SERIAL1_RX (1u)
+
+#define PIN_SERIAL2_TX (8u)
+#define PIN_SERIAL2_RX (9u)
+
+// SPI
+#define PIN_SPI0_MISO  (4u)
+#define PIN_SPI0_MOSI  (3u)
+#define PIN_SPI0_SCK   (2u)
+#define PIN_SPI0_SS    (5u)
+
+#define PIN_SPI1_MISO  (12u)
+#define PIN_SPI1_MOSI  (15u)
+#define PIN_SPI1_SCK   (14u)
+#define PIN_SPI1_SS    (13u)
+
+// Wire
+#define PIN_WIRE0_SDA  (4u)
+#define PIN_WIRE0_SCL  (5u)
+
+#define PIN_WIRE1_SDA  (26u)
+#define PIN_WIRE1_SCL  (27u)
+
+#define SERIAL_HOWMANY (2u)
+#define SPI_HOWMANY    (2u)
+#define WIRE_HOWMANY   (2u)
+
+#include "../generic/common.h"