diff --git a/stm-firmware/shell.c b/stm-firmware/shell.c
index 402e00f..6d42dd3 100644
--- a/stm-firmware/shell.c
+++ b/stm-firmware/shell.c
@@ -45,6 +45,8 @@
 #include <reflow-controller/temp-profile/temp-profile-executer.h>
 #include <reflow-controller/updater/updater.h>
 #include <reflow-controller/main-cycle-counter.h>
+#include <stm-periph/option-bytes.h>
+
 #include <stdio.h>
 
 #ifndef GIT_VER
@@ -883,6 +885,25 @@ shellmatta_retCode_t shell_cmd_filter_alpha(const shellmatta_handle_t handle, co
 	return SHELLMATTA_OK;
 }
 
+shellmatta_retCode_t shell_cmd_print_opt_bytes(const shellmatta_handle_t handle,
+					       const char *args, uint32_t len)
+{
+	(void)args;
+	(void)len;
+	struct option_bytes opts;
+
+	stm_option_bytes_read(&opts);
+
+	shellmatta_printf(handle, "Brown-out Level:  0x%x\r\n", opts.brown_out_level);
+	shellmatta_printf(handle, "nRST Standby:     0x%x\r\n", opts.nrst_standby);
+	shellmatta_printf(handle, "nRST Stop:        0x%x\r\n", opts.nrst_stop);
+	shellmatta_printf(handle, "Write Protection: 0x%x\r\n", opts.nwrpi);
+	shellmatta_printf(handle, "Read Protection:  0x%x\r\n", opts.read_protection);
+	shellmatta_printf(handle, "SW Watchdog:      0x%x\r\n", opts.wdg_sw);
+
+	return SHELLMATTA_OK;
+}
+
 //typedef struct shellmatta_cmd
 //{
 //    char                    *cmd;       /**< command name                           */
@@ -1076,6 +1097,14 @@ static shellmatta_cmd_t cmd[24] = {
 		.helpText = "Sets the filter constant",
 		.usageText = "filter-alpha <alpha>",
 		.cmdFct = shell_cmd_filter_alpha,
+		.next = &cmd[23],
+	},
+	{
+		.cmd = "print-option-bytes",
+		.cmdAlias = "opt-bytes",
+		.helpText = "Print the currently set option bytes of the STM32",
+		.usageText = "",
+		.cmdFct = shell_cmd_print_opt_bytes,
 		.next = NULL,
 	}
 };