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| Reference | Value | Description |
|---|---|---|
| Q1 | TEMT6000X01 | Ambient Light Sensors Ambient Light Sensor AEC-Q101 Qualified |
| Q2,Q3 | BC817 | 0.8A Ic, 45V Vce, NPN Transistor, SOT-23 |
| U1 | MCP73871 | Single cell, Li-Ion/Li-Po charge management controller |
| U2 | LM1117MPX-3.3_NOPB | Space saving 800-mA low-dropout linear regulator with internal current limit |
| U3 | ESP32-C3-WROOM-02-H4 | Multiprotocol Modules SMD module, ESP32-C3, 4MB SPI flash, PCB antenna |
| U4 | CP2102N-A02-GQFN20 | USB to UART Bridge |
| U5 |
| ESD Suppressors / TVS Diodes ESD Protection Low Cap |
| U6 | W25Q32JVSSIQ | NOR Flash spiFlash, 32M-bit, 4Kb Uniform Sector |
|---|
| U7 | BME280 | Integrated pressure, humidity and temperature sensor; 8-pin 2.5x2.5x0.93mm LGA |
|---|
| U8 | MAX4466EXK+T | Microphone Preamplifier |
|---|
| C1,C2,C5,C8,C10,C13-C16,C18,C21,C23 | 0.1u | Unpolarized capacitor |
|---|
| C3,C4,C7,C12,C19 | 10u | T491, Tantalum, MnO2 Tantalum, Commercial Grade, 10 uF, 10%, 10 VDC, 125C, -55C, 85C, SMD, MnO2, Molded, 6 % , 3.8 Ohms, 1000 nA, 58.6 mg, 3216, 1.6mm, Height Max = 1.8mm, 9000, 156 Weeks |
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| C6,C11,C22 | 1u |
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| C9 | 4.7u | T491, Tantalum, MnO2 Tantalum, Commercial Grade, 10 uF, 10%, 10 VDC, 125C, -55C, 85C, SMD, MnO2, Molded, 6 % , 3.8 Ohms, 1000 nA, 58.6 mg, 3216, 1.6mm, Height Max = 1.8mm, 9000, 156 Weeks |
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| C17,C24,C25 | 10n | Unpolarized capacitor |
|---|
| C20 | 100p |
|---|
| D1,D4,D6 | Red | Standard LEDs - SMD Red Clear 631nm |
|---|
| D2,D5 | Green | LED,SMD,0805,Green,6mcd,130deg Lite-On LTST-C170GKT, CHIPLED 0805 Series Green LED, 569 nm 2012 (0805), Rectangle Lens SMD package |
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| D3 | Blue | LED,SMD,0805,Blue,28mcd,130deg |
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| F1 | 0ZCH0110AF2E | 1210 SMT PPTC | 1.10 Ih | 16V |
|---|
| FB1 | FBMJ2125HM330-T |
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| J1 | USB_C_Receptacle | USB 2.0-only Type-C Receptacle connector |
|---|
| J2 | JST_2mm_LiPo | 2 Pin 2mm JST Battery Connector |
|---|
| J3 | GSD090012SEU | Memory Card Connectors SD CARD CONNECTOR 9 POS, SMT |
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| J4 | B4B-XH-AM | Connector header vertical 4pos 2.5mm |
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| J6 | Conn_01x05 | Generic connector, single row, 01x05, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| MK1 | CMC-5042PF-AC | Microphone |
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| R1,R2,R19,R23,R32-R34 | 10K | Resistor |
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| R3,R4 | 5k1 | Resistor |
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| R5,R26,R28 | 2K | Resistor |
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| R6 | 20K | Resistor |
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| R7-R9 | 470 | Resistor |
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| R10,R14,R18 | 330 | Resistor |
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| R11,R30 | 1K | Resistor |
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| R12 | 22K1 | Resistor |
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| R13 | 47K5 | Resistor |
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| R15,R16,R20,R22 | 50 | Resistor |
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| R17 | 35WR100KLFTR |
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| R24,R25 | 4K7 | Pull-up resistor |
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| R27,R29 | 1M | Resistor |
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| R31 | 22K | Resistor |
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| SW1,SW2 | 1101NE | SMD_6x3.5mm_h2.5mm |
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| TP1 | Test MOSI | test point |
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| TP2 | Test MISO | test point |
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| TP3 | Test CLK | test point |
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| TP4 | TEST CS_SD | test point |
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| TP5 | TEST CS | test point |
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