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authorSadeep Madurange <sadeep@asciimx.com>2025-09-07 17:04:34 +0800
committerSadeep Madurange <sadeep@asciimx.com>2025-09-07 17:04:34 +0800
commit276856de6c63bbbf3e56cc08dcca00ba10080b7e (patch)
treec68484bc312cc3a8abcea4fa9f4948a6f1f65cc6 /lock/util.c
parentf4b0b734a595919cf451ab9448b06274c8e609a4 (diff)
downloadsmart-home-276856de6c63bbbf3e56cc08dcca00ba10080b7e.tar.gz
Door lock with MOSFETs and and without RFM.HEADmaster
Diffstat (limited to 'lock/util.c')
-rw-r--r--lock/util.c89
1 files changed, 0 insertions, 89 deletions
diff --git a/lock/util.c b/lock/util.c
deleted file mode 100644
index ec5369e..0000000
--- a/lock/util.c
+++ /dev/null
@@ -1,89 +0,0 @@
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-
-#include "util.h"
-
-#define LOCK_LED PC3
-#define UNLOCK_LED PC4
-#define BATLOW_LED PC5
-#define LED_DDR DDRC
-#define LED_PORT PORTC
-
-int is_btn_pressed(uint8_t pin, uint8_t btn)
-{
- if (!((pin >> btn) & 0x01)) {
- _delay_ms(100);
- return !((pin >> btn) & 0x01);
- }
- return 0;
-}
-
-void xor(const char *k, const char *s, char *d, uint8_t n)
-{
- int i;
-
- for (i = 0; i < n; i++)
- d[i] = s[i] ^ k[i];
-}
-
-/* Measure vcc by measuring known internal 1.1v bandgap
- * reference voltage against AVCC.
- * Place a 100nF bypass capacitor on AREF.
- */
-uint16_t getvcc(void)
-{
- uint16_t vcc;
-
- ADMUX |= (1 << REFS0);
- ADMUX |= (1 << MUX3) | (1 << MUX2) | (1 << MUX1);
- ADCSRA |= (1 << ADEN) | (1 << ADPS2) | (1 << ADPS0);
-
- // https://www.sciencetronics.com/greenphotons/?p=1521
- _delay_us(500);
-
- ADCSRA |= (1 << ADSC);
- while (ADCSRA & (1 << ADSC))
- ;
- vcc = (1100UL * 1023 / ADC);
-
- ADCSRA &= ~(1 << ADEN);
- return vcc;
-}
-
-void led_init(void)
-{
- LED_DDR |= (1 << LOCK_LED) | (1 << UNLOCK_LED);
- LED_DDR |= (1 << BATLOW_LED);
-
- LED_PORT &= ~(1 << LOCK_LED);
- LED_PORT &= ~(1 << UNLOCK_LED);
- LED_PORT &= ~(1 << BATLOW_LED);
-}
-
-void led_locked(void)
-{
- LED_PORT |= (1 << LOCK_LED);
- _delay_ms(100);
- LED_PORT &= ~(1 << LOCK_LED);
- _delay_ms(100);
- LED_PORT |= (1 << LOCK_LED);
- _delay_ms(100);
- LED_PORT &= ~(1 << LOCK_LED);
-}
-
-void led_unlocked(void)
-{
- LED_PORT |= (1 << UNLOCK_LED);
- _delay_ms(70);
- LED_PORT &= ~(1 << UNLOCK_LED);
- _delay_ms(70);
- LED_PORT |= (1 << UNLOCK_LED);
- _delay_ms(70);
- LED_PORT &= ~(1 << UNLOCK_LED);
-}
-
-void led_bat(void)
-{
- LED_PORT ^= (1 << BATLOW_LED);
-}