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| Reference | Value | Description |
|---|---|---|
| Q1,Q5,Q21,Q22,Q31 | MMBT3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, SOT-23 |
| Q11 | BSS138 | 50V Vds, 0.22A Id, N-Channel MOSFET, SOT-23 |
| U2,U7-U9,U11 | OPA2354xxD | Dual High Speed CMOS Operational Amplifiers, SOIC-8,Dual Operational Amplifiers, DIP-8/SOIC-8/TSSOP-8/VSSOP-8 |
| U3 | 74HCU04 | Hex Inverter |
| U4 | 74HC14 | Hex inverter schmitt trigger |
| U6 | FeatherWing 128x64 OLED | OLED 128x64 Graphic Display Monochrome, +3.3V VDD, I2C |
| U10 |
| 1A 20V Fixed LDO Linear Regulator, 3.3V, SOT-89/SOT-223/TO-220/TO-252/TO-263 |
| A1 | Adafruit_Feather_M0_Adalogger | Microcontroller module with SAMD21 Cortex-M0 MCU and SD card reader |
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| ANCHOR1-ANCHOR3,TP1-TP22 | Conn_01x01_Pin | Generic connector, single row, 01x01, script generated |
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| C3-C5,C8-C10,C12-C18 | 10pf | Unpolarized capacitor |
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| C11,C36 | 100nf | Unpolarized capacitor |
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| C19,C21,C22,C24-C26,C30,C32-C35 | 100n | Unpolarized capacitor |
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| C27,C28 | 10pF | Unpolarized capacitor |
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| C29 | 10nF | Unpolarized capacitor |
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| C31 | 1u | Unpolarized capacitor |
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| D1 | LED BLUE | Light emitting diode |
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| D11,D21,D31 | BAT54SW | Vr 30V, If 200mA, Dual schottky barrier diode, in series, SOT-323 |
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| J7,J8 | Conn_01x02_Pin | Generic connector, single row, 01x02, script generated |
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| LS1 | CPT-1207-3TH | Crystal speaker/transducer |
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| PROTO1-PROTO8 | Conn_01x03_Pin | Generic connector, single row, 01x03, script generated |
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| R1 | 220 | Resistor |
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| R2,R19,R20,R22,R23 | 1k0 | Resistor |
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| R6,R8-R10,R18,R21,R27,R29-R31,R33,R34,R37,R38,R40,R42,R44 | 500 | Resistor |
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| R7,R28,R39 | TBD | Resistor |
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| R11,R12,R25,R26,R35,R36 | 1M0 | Resistor |
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| R24,R32 | 5k1 | Resistor |
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