uart_printi

include/uart.c

@@ -1,3 +1,4 @@
+#include <stdlib.h>
 #include "uart.h"
 void uart_init() {
     /* This make stuff not work, idk
@@ -24,10 +25,24 @@ void uart_printc(char c) {
         /* Put data into buffer, sends the data */
         UDR0 = c;
 }
+void uart_printsnl(char* s) {
+    while(*s)
+        uart_printc(*s++);
+    uart_printc('\n');
+}
 void uart_prints(char* s) {
     while(*s)
         uart_printc(*s++);
 }
+void uart_printi(char* pre, int i) {
+    // we want to print this,
+    // so we store the ascii repr in our buffer
+    char buf[10];
+    itoa(i, buf, 10); // base 10
+    uart_prints(pre);
+    uart_printsnl(buf);
+
+}
 char uart_getc() {
     while (UCSR0A & (1 << RXC0));
     return UDR0;

include/uart.h

@@ -8,5 +8,6 @@
 void uart_init();
 void uart_prints(char* s);
 void uart_printc(char c);
+void uart_printi(char* pre, int i);
 
 char uart_getc();

print/main.c

@@ -4,8 +4,6 @@
 #include <avr/io.h>
 #include <util/delay.h>
 #include "../include/uart.h"
-#include <stdlib.h>
-#include <stdlib.h>
 
 #define BAUD 9600
 #define MYUBRR F_CPU/16/BAUD-1
@@ -24,10 +22,7 @@ int main (void)
         // lets say we read some value from a sensor
         sensor = 65;
         // we want to print this, so we store the ascii repr in our buffer
-        itoa(sensor, buf, 10); // base 10
-        uart_prints("sensor status: ");
-        uart_prints(buf);
-        uart_prints("\n");
+        uart_printi("sensor status: ", sensor);
         _delay_ms(1000);
     }
 }