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摘要：下面是 [冰箱门报警器 ]的 元件BOM表：R1 = 10K - 1/4W Resistor R2 = Photo resistor (any type) R3 = 2.2M - 1/4W Resistor R4 = 1M - 1/4W Resistor C1 = 10µF - 25V Electrolytic Capacitor C2 = 100nF - 63V Polyester Capacitor D1 = 1N4148 - 75V 150mA Diode IC1 = 7555 or TS555CN CMos Timer IC IC2 = 7555 or TS555CN CMos Timer IC BZ1 = Piezo sounder (incorporating 3KHz oscillator) B1 = 3V
下面是[冰箱门报警器]的
元件BOM表：
R1 = 10K - 1/4W Resistor
R2 = Photo resistor (any type)
R3 = 2.2M - 1/4W Resistor
R4 = 1M - 1/4W Resistor
C1 = 10µF - 25V Electrolytic Capacitor
C2 = 100nF - 63V Polyester Capacitor
D1 = 1N4148 - 75V 150mA Diode
IC1 = 7555 or TS555CN CMos Timer IC
IC2 = 7555 or TS555CN CMos Timer IC
BZ1 = Piezo sounder (incorporating 3KHz oscillator)
B1 = 3V Battery (2 x 1.5V AA, AAA or smaller type Cells in series）
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| 型号 | 厂商 | 价格 |
|---|---|---|
| EPCOS | 爱普科斯 | / |
| STM32F103RCT6 | ST | ￥461.23 |
| STM32F103C8T6 | ST | ￥84 |
| STM32F103VET6 | ST | ￥426.57 |
| STM32F103RET6 | ST | ￥780.82 |
| STM8S003F3P6 | ST | ￥10.62 |
| STM32F103VCT6 | ST | ￥275.84 |
| STM32F103CBT6 | ST | ￥130.66 |
| STM32F030C8T6 | ST | ￥18.11 |
| N76E003AT20 | NUVOTON | ￥9.67 |