Playing around, measuring power.

Author: martintv

samples/hello_world/prj.conf

@@ -1 +1,7 @@
 # nothing here
+CONFIG_SERIAL=n # This disables UART which draws power.
+CONFIG_DEBUG=y
+CONFIG_DEBUG_INFO=y
+CONFIG_PRINTK=n
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y
+CONFIG_SYSTEM_CLOCK_NO_WAIT=y

samples/hello_world/src/main.c

@@ -4,11 +4,10 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include <stdio.h>
+#include <zephyr/kernel.h>
 
 int main(void)
 {
-	printf("Hello World! %s\n", CONFIG_BOARD_TARGET);
-
+	k_sleep(K_FOREVER);
 	return 0;
 }