材料BOM表:
R1 = 12KR2 = 1MR3 = 6.8KR4 = 220KR5 = 2.2MR7 = 100KR8 = 22KR9 = 6.8KR10 = 100KQ1 = BC550CQ2 = BC328Q3 = BC328C1 = 220nF-63VC2 = 22nF-63VC3 = 220nF-63VC4 = 22nF-63VC5 = 22nF-63VC6 = 47uF-25VD1 = 1N4148D2 = 1N4148B1 = 3V BatteryIC1 = 7555 CMos ICRL1 = DIL Reed-Relay SPDTSW1 = SPST SwitchMIC1 = Electret Mic