diff --git a/firmware/blinky/blinky.c b/firmware/blinky/blinky.c
index 175c8d38..7fa09249 100644
--- a/firmware/blinky/blinky.c
+++ b/firmware/blinky/blinky.c
@@ -23,15 +23,26 @@
 
 void wait(uint8_t duration)
 {
-	uint32_t i;
+	volatile uint32_t i;
 	for (i = 0; i < duration * 1000000; i++);
 }
 
+uint32_t boot0, boot1, boot2, boot3;
+
 int main()
 {
+
 	gpio_init();
 
+	EN1V8_SET;
+	EN1V8_CLR;
+
 	while (1) {
+	    boot0 = BOOT0;
+	    boot1 = BOOT1;
+	    boot2 = BOOT2;
+	    boot3 = BOOT3;
+
 		LED1_SET;
 		LED2_SET;
 		LED3_SET;
@@ -41,4 +52,6 @@ int main()
 		LED3_CLR;
 		wait(1);
 	}
+
+	return 0 ;
 }
diff --git a/firmware/common/hackrf_core.c b/firmware/common/hackrf_core.c
index 654e0c72..9ae55029 100644
--- a/firmware/common/hackrf_core.c
+++ b/firmware/common/hackrf_core.c
@@ -31,6 +31,9 @@ void gpio_init()
 
 	/* set certain pins as outputs, all others inputs */
 	GPIO_DIR2 = (PIN_LED1 | PIN_LED2 | PIN_LED3);
+
+	/* set certain pins as outputs, all others inputs */
+	GPIO_DIR3 = (PIN_EN1V8);
 }
 
 void all_pins_off(void)
diff --git a/firmware/common/hackrf_core.h b/firmware/common/hackrf_core.h
index 92e3f87c..9961ccad 100644
--- a/firmware/common/hackrf_core.h
+++ b/firmware/common/hackrf_core.h
@@ -33,9 +33,16 @@
 
 /* GPIO pins */
 //#ifdef JELLYBEAN
-#define PIN_LED1 (1 << 1) /* GPIO2[1] on P4_1 */
-#define PIN_LED2 (1 << 2) /* GPIO2[2] on P4_2 */
-#define PIN_LED3 (1 << 8) /* GPIO2[8] on P6_12 */
+#define PIN_LED1    (1 << 1) /* GPIO2[1] on P4_1 */
+#define PIN_LED2    (1 << 2) /* GPIO2[2] on P4_2 */
+#define PIN_LED3    (1 << 8) /* GPIO2[8] on P6_12 */
+
+#define PIN_EN1V8   (1 << 6) /* GPIO3[6] on P6_10 */
+
+#define PIN_BOOT0   (1 << 8) /* GPIO0[8] on P1_1 */
+#define PIN_BOOT1   (1 << 9) /* GPIO0[9] on P1_2 */
+#define PIN_BOOT2   (1 << 7) /* GPIO5[7] on P2_8 */
+#define PIN_BOOT3   (1 << 10) /* GPIO1[10] on P2_9 */
 //#endif
 
 /* indicator LED control */
@@ -49,6 +56,17 @@
 #define LED3     (GPIO_PIN2 & PIN_LED3)
 #define LED3_SET (GPIO_SET2 = PIN_LED3)
 #define LED3_CLR (GPIO_CLR2 = PIN_LED3)
+
+#define EN1V8    (GPIO_PIN3 & PIN_EN1V8)
+#define EN1V8_SET (GPIO_SET3 = PIN_EN1V8)
+#define EN1V8_CLR (GPIO_CLR3 = PIN_EN1V8)
+
+/* Input GPIO BOOT0 to 3 */
+#define BOOT0    (GPIO_PIN0 & PIN_BOOT0)
+#define BOOT1    (GPIO_PIN0 & PIN_BOOT1)
+#define BOOT2    (GPIO_PIN5 & PIN_BOOT2)
+#define BOOT3    (GPIO_PIN1 & PIN_BOOT3)
+
 //#endif
 
 void gpio_init(void);
diff --git a/hardware/jellybean/jellybean_BOM.ods b/hardware/jellybean/jellybean_BOM.ods
new file mode 100644
index 00000000..2af7c4de
Binary files /dev/null and b/hardware/jellybean/jellybean_BOM.ods differ