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.
4282 Commits
60 Branches
26 GiB
 
 
 
 
 
Tree: 5944ab246a
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '5944ab246a'
${ noResults }
qmk_firmware/keyboards/handwired/promethium/promethium.c

36 lines
686 B
Raw Blame History

#include "promethium.h"
#include "analog.h"
#include "timer.h"
#include "matrix.h"
float battery_percentage(void) {
float voltage = analogRead(BATTERY_PIN) * 2 * 3.3 / 1024;
float percentage = (voltage - 3.5) * 143;
if (percentage > 100) {
return 100;
} else if (percentage < 0) {
return 0;
} else {
return percentage;
}
}
__attribute__ ((weak))
void battery_poll(float percentage) {
}
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_percentage());
}
}