mh
/
qmk_firmware
mirror of https://github.com/qmk/qmk_firmware/
1
0
Fork 0
Code Issues 0 Projects 0 Releases 1.6k Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
17920 Commits
64 Branches
1.5 GiB
 
 
 
 
 
Tree: 6b299fab6e
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '6b299fab6e'
${ noResults }
qmk_firmware/keyboards/handwired/promethium/promethium.c

35 lines
997 B
Raw Blame History

#include "promethium.h"
#include "analog.h"
#include "timer.h"
#include "matrix.h"
#include "musical_notes.h"
#include "adafruit_ble.h"
float fauxclicky_pressed_note[2] = MUSICAL_NOTE(_A4, 0.0625);
float fauxclicky_released_note[2] = MUSICAL_NOTE(_A4, 0.0625);
float fauxclicky_beep_note[2] = MUSICAL_NOTE(_C6, 0.25);
// 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 = adafruit_ble_read_battery_voltage() * 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_scan_kb(void) {
static uint16_t counter = BATTERY_POLL;
counter++;
if (counter > BATTERY_POLL) {
counter = 0;
battery_poll(battery_level());
}
matrix_scan_user();
}