Product Quantity Subtotal Official Raspberry Pi Debug Probe $8.72 Official Raspberry Pi Debug Probe quantity × $8.72 Official Raspberry Pi Debug Probe quantity $8.72 STM32F401CCU6 Minimum System Board Microcomputer STM32 ARM Core Board $2.33 STM32F401CCU6 Minimum System Board Microcomputer STM32 ARM Core Board quantity × $2.33 STM32F401CCU6 Minimum System Board Microcomputer STM32 ARM Core Board quantity $2.33 High Current Active Alarm Buzzer Driver Module $0.16 High Current Active Alarm Buzzer Driver Module quantity × $0.16 High Current Active Alarm Buzzer Driver Module quantity $0.16 Coupon: Apply coupon Update cart Cart totals Subtotal $11.21 Total $11.21 Proceed to checkout