add simple firmware with hardcoded firmware
haldean
2 years ago
| 0 | #include <usb_keyboard.h> | |
| 1 | ||
| 2 | void setup() { | |
| 3 | pinMode(6, INPUT); | |
| 4 | pinMode(7, INPUT); | |
| 5 | pinMode(8, INPUT); | |
| 6 | pinMode(9, INPUT); | |
| 7 | pinMode(10, INPUT); | |
| 8 | pinMode(11, INPUT); | |
| 9 | } | |
| 10 | ||
| 11 | /* The two possible states for the stomp. We use these instead | |
| 12 | * of simple 0 or 1 to detect HW failures; if there's a short, | |
| 13 | * it will cause either both or neither input to be set, which | |
| 14 | * would be a 3 or a 0. */ | |
| 15 | constexpr int A = 2; | |
| 16 | constexpr int B = 1; | |
| 17 | ||
| 18 | void loop() { | |
| 19 | int switch_mode = digitalRead(6) << 1 | digitalRead(7); | |
| 20 | int left_state = digitalRead(8) << 1 | digitalRead(9); | |
| 21 | int right_state = digitalRead(10) << 1 | digitalRead(11); | |
| 22 | ||
| 23 | int old_modifiers = keyboard_modifier_keys; | |
| 24 | keyboard_modifier_keys = 0; | |
| 25 | keyboard_keys[0] = 0; | |
| 26 | keyboard_keys[1] = 0; | |
| 27 | ||
| 28 | if (switch_mode == A) { | |
| 29 | if (left_state == A) { | |
| 30 | keyboard_modifier_keys = KEY_LEFT_SHIFT; | |
| 31 | } | |
| 32 | /* If the modifier is released, you have to release both | |
| 33 | * the modifiers and the key itself, so we send an | |
| 34 | * intermediate state with the modifier changed and the key | |
| 35 | * released */ | |
| 36 | if (keyboard_modifier_keys != 0 && old_modifiers == 0) { | |
| 37 | usb_keyboard_send(); | |
| 38 | } | |
| 39 | if (right_state == A) | |
| 40 | keyboard_keys[0] = KEY_W; | |
| 41 | } | |
| 42 | else if (switch_mode == B) { | |
| 43 | int i = 0; | |
| 44 | if (left_state == A) { | |
| 45 | keyboard_keys[i++] = KEY_LEFT; | |
| 46 | } | |
| 47 | if (right_state == A) { | |
| 48 | keyboard_keys[i++] = KEY_UP; | |
| 49 | } | |
| 50 | } | |
| 51 | ||
| 52 | usb_keyboard_send(); | |
| 53 | } |