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b1u3-22
A handy light that helps astronomers during night-sky observations
| Reference | Value | Description |
|---|---|---|
| IC1 | MAX77972 | Battery Management 3A USB Type-C Precision Charger for 1-Ce |
| U1 | TPD4E05U06DQA | 4-Channel ESD Protection for Super-Speed USB 3.0 Interface, USON-10 |
| U2 | ESP32-S3FN8 | Microcontroller, Wi-Fi 802.11b/g/n, Bluetooth, 32bit |
| U3 | NX3DV221GM_115 | High-bandwidth switch designed for the switching of high-speed USB 2.0 signals in handset and consumer applications |
| U4 | NCP186AMX330TAG | 3P3 CMOS LDO regulators featuring 1 A output current |
| U5-U7 | AP3031 | DC/DC boost converter with 1.4A switching current limit |
| U8 | LSM6DSOTR | The LSM6DSO is a system-in-package featuring a high-performance 3-axis digital accelerometer and 3-axis digital gyroscope |
| U9 | LIS3MDL | Ultra-low-power, 3-axis digital output magnetometer, LGA-12 |
| AE1 | PCB Antenna | Antenna with extra pin for shielding |
| BT1,BT2 | Li-Ion cell | Single-cell battery |
| C1,C2,C6,C7 | 2u2 | Unpolarized capacitor, small symbol |
| C3,C24 | 22u | Unpolarized capacitor, small symbol |
| C4,C13,C14,C17-C20,C23,C25,C26 | 0u1 | Unpolarized capacitor, small symbol |
| C5,C8,C9,C16 | 10u | Unpolarized capacitor, small symbol |
| C10 | 2p6 | Unpolarized capacitor, small symbol |
| C11 | 2p | Unpolarized capacitor, small symbol |
| C12,C21,C43,C45 | 10n | Unpolarized capacitor, small symbol |
| C15,C22,C36,C37,C40,C41 | 1u | Unpolarized capacitor, small symbol |
| C27,C28 | 12p | Unpolarized capacitor, small symbol |
| C29-C34,L1,L5-L7 | 0u47 | Inductor,Unpolarized capacitor, small symbol |
| C35,C38,C39,C42,C44 | 100n | Unpolarized capacitor, small symbol |
| D1 | SMF22CA | Bidirectional transient-voltage-suppression diode, small symbol |
| D2,D13,D24 | SD103AWSG | Schottky diode |
| D35 | LED_Small | Light emitting diode, small symbol |
| F1 | MF-USML700/6-2 | Fuse, small symbol |
| J1 | USB-C Receptacle | USB 2.0-only 16P Type-C Receptacle connector |
| J2 | OLED | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J3 | JTAG | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J4 | UART | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J5 | Lights connector | Generic connector, single row, 01x06, script generated (kicad-library-utils/schlib/autogen/connector/) |
| JP1 | JMP_DATAMUX_DIS | Jumper, 2-pole, small symbol, bridged |
| L2 | 3n3 | Inductor, small symbol |
| L4 | 2n | Inductor, small symbol |
| R1,R2 | 4k42 1% | Resistor, small symbol |
| R3,R4,R9-R11,R13,R15,R17-R26,TH1 | 10k | Resistor, small symbol,Temperature dependent resistor, negative temperature coefficient |
| R5,R7,R8 | 0R | Resistor, small symbol |
| R6 | 499R | Resistor, small symbol |
| R12,R14,R16 | 3R3 1% | Resistor, small symbol |
| R27 | 2k | Resistor, small symbol |
| SW1 | RESET | Push button switch, generic, two pins |
| SW2 | RotaryEncoder_Switch | Rotary encoder, dual channel, incremental quadrate outputs, with switch |
| TP1 | TP_CHG_IN | test point (alternative probe-style design) |
| TP2 | TP_CHG_STAT | test point (alternative probe-style design) |
| Y2 | 40MHz | Four pin crystal, GND on pins 2 and 4 |