IRFZ44N PBF – N-Channel Power MOSFET $0.85 3.3V Low Dropout Linear Regulator $0.55 Espressif Wi-Fi / Bluetooth module, 8 MB Flash, u.FL antenna connector, Revision 2 $5.95 ATMEGA 8-bit AVR Microcontroller $3.95 32-bit ARM Cortex-M3 Microcontroller $6.00
