aboutsummaryrefslogtreecommitdiffstats
path: root/keyboards/handwired/promethium/promethium.c
blob: 8b1a0c71f2c2d63f8b4ec4af9a03c267d0ef2525 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
#include "promethium.h"
#include "analog.h"
#include "timer.h"
#include "matrix.h"
#include "musical_notes.h"

float fauxclicky_pressed_note[2] = MUSICAL_NOTE(_F3, .03125);
float fauxclicky_released_note[2] = MUSICAL_NOTE(_C3, .03125);
float fauxclicky_beep_note[2] = MUSICAL_NOTE(_C3, .03125);

// cubic fit {3.3, 0}, {3.5, 2.9}, {3.6, 5}, {3.7, 8.6}, {3.8, 36},  {3.9, 62}, {4.0, 73}, {4.05, 83}, {4.1, 89}, {4.15, 94}, {4.2, 100}

uint8_t battery_level(void) {
    float voltage = analogRead(BATTERY_PIN) * 2 * 3.3 / 1024;
    if (voltage < MIN_VOLTAGE) return 0;
    if (voltage > MAX_VOLTAGE) return 255;
    return (voltage - MIN_VOLTAGE) / (MAX_VOLTAGE - MIN_VOLTAGE) * 255;
}

__attribute__ ((weak))
void battery_poll(uint8_t level) {
}

void matrix_init_kb(void) {
	matrix_init_user();
}

void matrix_scan_kb(void) {
    static uint16_t counter = BATTERY_POLL;
    counter++;

    if (counter > BATTERY_POLL) {
        counter = 0;
        battery_poll(battery_level());
    }

    matrix_scan_user();
}

void led_set_kb(uint8_t usb_led) {
    led_set_user(usb_led);
}

__attribute__ ((weak))
void led_set_user(uint8_t usb_led) {
}