Remove debug code and clean up code.

1 files changed, 3 insertions, 14 deletions

diff --git a/main.c b/main.c
index 5ecccb5..229999c 100644
--- a/main.c
+++ b/main.c
@@ -116,8 +116,6 @@ static inline void pwroff_batchk(void)
 
 static void check_bat(void)
 {
-	char s[5];
-	s[4] = 0;
 	uint16_t vbg, vcc;
 
 	pwron_batchk();
@@ -125,8 +123,7 @@ static void check_bat(void)
 	ADMUX |= (1 << REFS1) | (1 << REFS0);
 	ADCSRA |= (1 << ADEN) | (1 << ADPS2) | (1 << ADPS1); /* clk: 50-200 kHz */
 
-	// https://www.sciencetronics.com/greenphotons/?p=1521
-	_delay_us(500);
+	_delay_us(500); /* https://www.sciencetronics.com/greenphotons/?p=1521 */
 
 	ADCSRA |= (1 << ADSC);
 	while (ADCSRA & (1 << ADSC))
@@ -138,15 +135,7 @@ static void check_bat(void)
 	
 	pwroff_batchk();
 
-	// 56k/10k voltage divider
-	vcc = (vbg * 66) / 10; 
-
-	itoa(vcc, s, 10);
-	for (int i = 0; i < 4; i++)
-		uart_send((uint8_t)s[i]);
-	uart_send('\r');
-	uart_send('\n');
-
+	vcc = (vbg * 66) / 10; /* 56k/10k divider */
 	if (vcc < BATMIN)
 		flash_led();
 }
@@ -155,7 +144,7 @@ int main(void)
 {
 	uint16_t id;
 
-	/* disable watchdog timer */
+	/* disable wdt */
 	cli();
 	wdt_reset();
 	MCUSR &= ~(1 << WDRF);