diff --git a/src/kaleidoscope/hardware/avr/pins_and_ports.h b/src/kaleidoscope/hardware/avr/pins_and_ports.h
new file mode 100644
index 00000000..08b6adde
--- /dev/null
+++ b/src/kaleidoscope/hardware/avr/pins_and_ports.h
@@ -0,0 +1,125 @@
+/* This file originated in QMK. https://github.com/qmk/qmk_firmware
+ * quantum/config_common.h 73e634482ea8f57d1f1a5f1e16bc3ffd74f84b8e
+ * 
+ * Original copyright statement:
+ * 
+ * Copyright 2015-2018 Jack Humbert
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#ifndef __ASSEMBLER__
+  #include <avr/io.h>
+#endif
+#define PORT_SHIFTER 4 // this may be 4 for all AVR chips
+
+// If you want to add more to this list, reference the PINx definitions in these header
+// files: https://github.com/vancegroup-mirrors/avr-libc/tree/master/avr-libc/include/avr
+
+#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega16U4__)
+    #define ADDRESS_BASE 0x00
+    #define PINB_ADDRESS 0x3
+    #define PINC_ADDRESS 0x6
+    #define PIND_ADDRESS 0x9
+    #define PINE_ADDRESS 0xC
+    #define PINF_ADDRESS 0xF
+#elif defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U2__)
+    #define ADDRESS_BASE 0x00
+    #define PINB_ADDRESS 0x3
+    #define PINC_ADDRESS 0x6
+    #define PIND_ADDRESS 0x9
+#elif defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__)
+    #define ADDRESS_BASE 0x00
+    #define PINA_ADDRESS 0x0
+    #define PINB_ADDRESS 0x3
+    #define PINC_ADDRESS 0x6
+    #define PIND_ADDRESS 0x9
+    #define PINE_ADDRESS 0xC
+    #define PINF_ADDRESS 0xF
+#elif defined(__AVR_ATmega32A__)
+    #define ADDRESS_BASE 0x10
+    #define PIND_ADDRESS 0x0
+    #define PINC_ADDRESS 0x3
+    #define PINB_ADDRESS 0x6
+    #define PINA_ADDRESS 0x9
+#else
+    #error "Pins are not defined"
+#endif
+
+/* I/O pins */
+#define PINDEF(port, pin) ((PIN##port##_ADDRESS << PORT_SHIFTER) | pin)
+
+	
+#ifdef PORTA
+    #define PIN_A0 PINDEF(A, 0)
+    #define PIN_A1 PINDEF(A, 1)
+    #define PIN_A2 PINDEF(A, 2)
+    #define PIN_A3 PINDEF(A, 3)
+    #define PIN_A4 PINDEF(A, 4)
+    #define PIN_A5 PINDEF(A, 5)
+    #define PIN_A6 PINDEF(A, 6)
+    #define PIN_A7 PINDEF(A, 7)
+#endif
+#ifdef PORTB
+    #define PIN_B0 PINDEF(B, 0)
+    #define PIN_B1 PINDEF(B, 1)
+    #define PIN_B2 PINDEF(B, 2)
+    #define PIN_B3 PINDEF(B, 3)
+    #define PIN_B4 PINDEF(B, 4)
+    #define PIN_B5 PINDEF(B, 5)
+    #define PIN_B6 PINDEF(B, 6)
+    #define PIN_B7 PINDEF(B, 7)
+#endif
+#ifdef PORTC
+    #define PIN_C0 PINDEF(C, 0)
+    #define PIN_C1 PINDEF(C, 1)
+    #define PIN_C2 PINDEF(C, 2)
+    #define PIN_C3 PINDEF(C, 3)
+    #define PIN_C4 PINDEF(C, 4)
+    #define PIN_C5 PINDEF(C, 5)
+    #define PIN_C6 PINDEF(C, 6)
+    #define PIN_C7 PINDEF(C, 7)
+#endif
+#ifdef PORTD
+    #define PIN_D0 PINDEF(D, 0)
+    #define PIN_D1 PINDEF(D, 1)
+    #define PIN_D2 PINDEF(D, 2)
+    #define PIN_D3 PINDEF(D, 3)
+    #define PIN_D4 PINDEF(D, 4)
+    #define PIN_D5 PINDEF(D, 5)
+    #define PIN_D6 PINDEF(D, 6)
+    #define PIN_D7 PINDEF(D, 7)
+#endif
+#ifdef PORTE
+    #define PIN_E0 PINDEF(E, 0)
+    #define PIN_E1 PINDEF(E, 1)
+    #define PIN_E2 PINDEF(E, 2)
+    #define PIN_E3 PINDEF(E, 3)
+    #define PIN_E4 PINDEF(E, 4)
+    #define PIN_E5 PINDEF(E, 5)
+    #define PIN_E6 PINDEF(E, 6)
+    #define PIN_E7 PINDEF(E, 7)
+#endif
+#ifdef PORTF
+    #define PIN_F0 PINDEF(F, 0)
+    #define PIN_F1 PINDEF(F, 1)
+    #define PIN_F2 PINDEF(F, 2)
+    #define PIN_F3 PINDEF(F, 3)
+    #define PIN_F4 PINDEF(F, 4)
+    #define PIN_F5 PINDEF(F, 5)
+    #define PIN_F6 PINDEF(F, 6)
+    #define PIN_F7 PINDEF(F, 7)
+#endif