Items: JM20337 -> 2 USD -> 12MHz Crystal -> 0.1 USD -> AX1117 3.3V Low Dropout Linear Regulator -> 1 USD -> Micro USB Connector -> 0.04 USD -> 2 tantalum 106C caps -> 0.16\*2 USD -> FFC 60P -> 0.38 USD -> FFC 24P -> 0.24 USD -> Resistor Array 220 -> 0.01\*4 USD -> Resistor Array 330 -> 0.01 USD -> RED LED SMD -> 0.03\*2 USD -> x