37 lines
686 B
C
37 lines
686 B
C
#include "promethium.h"
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#include "analog.h"
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#include "timer.h"
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#include "matrix.h"
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float battery_percentage(void) {
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float voltage = analogRead(BATTERY_PIN) * 2 * 3.3 / 1024;
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float percentage = (voltage - 3.5) * 143;
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if (percentage > 100) {
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return 100;
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} else if (percentage < 0) {
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return 0;
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} else {
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return percentage;
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}
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}
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__attribute__ ((weak))
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void battery_poll(float percentage) {
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}
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void matrix_init_kb(void) {
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matrix_init_user();
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}
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void matrix_scan_kb(void) {
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static uint16_t counter = BATTERY_POLL;
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counter++;
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if (counter > BATTERY_POLL) {
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counter = 0;
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battery_poll(battery_percentage());
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}
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}
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