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HenraL
This is an attempt at creating a box that aims to allow you to broacast your location to someone close like the other deivces (air tag, tile, etc) but as it is not a brand and uses the internet instead of ble and an proprietary device grid (airtag) it should not be very obvious.
| Reference | Value | Description |
|---|---|---|
| Q1 | Si2305CDS | SOT-23 P-MOSFET enchancement mode transistor, 8V, 5.8A, 1.7W, Alternate KiCAD Library |
| U1 | SIM7670G-LNGV | |
| U2 | LIS2DE12 | 3-Axis Accelerometer, 2/4/8/16g range, I2C/SPI interface |
| U3 | ME6211C33M5 | 500mA low dropout linear regulator, shutdown pin, 6.5V max input voltage, 3.3V fixed positive output, SOT-23-5 |
| U4 | TPS61022 | 8A Boost Converter, 0.5-5.5 V input, 2.2-5.5V output, Texas RWU0007A VQFN-7 |
| U5 | ESP32-C3 |
| RF Module, ESP32 SoC, RISC-V, WiFi 802.11b/n/g, Bluetooth LE 5, QFN32 |
| U6 | DW01A | Overcharge, overcurrent and overdischarge protection IC for single cell lithium-ion/polymer battery |
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| U7 | 8205A | Mosfet Array 20V 5A 830mW (Ta) Surface Mount SOT-23-6 |
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| U8 | TP4056-42-ESOP8 | 1A Standalone Linear Li-ion/LiPo single-cell battery charger, 4.2V ±1% charge voltage, VCC = 4.0..8.0V, SOIC-8 (SOP-8) |
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| BT1 | Battery_Cell | Single-cell battery |
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| C1 | 1.2pF | capacitor, non-polarized/bipolar |
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| C2,C4 | 10uF | Unpolarized capacitor |
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| C3 | 1uF_0603_25V | 1uF, Min. 25V, 0603, Ceramic/MLCC |
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| C5,C8-C12 | 100nF_Ceramic | 100nF Ceramic Capacitor |
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| C6,C7 | 22uF_0603_16V | 22uF, 16V,10%,X5R or X7R,0603 |
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| C13-C16 | 22pF | Unpolarized capacitor |
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| D1 | WS2812B | RGB LED with integrated controller |
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| E1 | 2450AT18A0100001E | 2.4GHz Chip RF Antenna 2.4GHz ~ 2.5GHz 0.5dBi Solder Surface Mount |
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| J1 | JAE_SIM_Card_SF72S006 | Nano-SIM Card (4FF) connector with Detect Switch |
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| J2 | Conn_USB_C_Socket_PowerOnly | USB 2.0-only Type-C Receptacle connector |
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| J3 | PINHD_1x6_Male | Pin Header male with pin space 2.54mm. Pin Count -6 |
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| L1 | 4.7nH | coil/winding/inductor/choke/reactor |
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| L2 | 1.0uH | Inductor |
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| LED1 | LED_1.8mm_SMD_Red | Red LED, 1.8mm SMD subminiature gull wing, Alternate KiCad Library |
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| LED2 | LED_1.8mm_SMD_Green | Green LED, 1.8mm SMD subminiature gull wing, Alternate KiCad Library |
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| LS1 | PKLCS1212E4001-R1 | Buzzers Transducer, Externally Driven Piezo 1.5 V - 4kHz 84dB @ 1.5V, 10cm Surface Mount Solder Pads |
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| R1,R2 | 5.1k | Resistor |
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| R3 | RC0603FR-0747KL | 47 kOhms ±1% 0.1W, 1/10W Chip Resistor 0603 (1608 Metric) Moisture Resistant Thick Film |
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| R4 | RC0603FR-07330KL | 330 kOhms ±1% 0.1W, 1/10W Chip Resistor 0603 (1608 Metric) Moisture Resistant Thick Film |
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| R5,R7 | 10k_0402 | 10k, 1%, 1/16W, 0603 |
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| R6 | 4.7k_0603 | 4k7, 1%, 1/10W, 0603 |
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| R8,R9 | 470k_0603 | 470K, 1%, 1/10W, 0603 |
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| R10,R11,R14,R15 | 1k_0603 | 1K, 1%, 1/10W, 0603 |
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| R12 | 2.4k_0603 | 2K4, 1%, 1/10W, 0603 |
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| R13 | 10k_0603 | 10K, 1%, 1/10W, 0603 |
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| SW1-SW3 | Switch_Tactile_CnK | Push button switch, C&K PTS636 SM25F SMTR LFS, Tactile Switch SPST-NO Top Actuated Surface Mount |
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| SW4 | SPDT_Slide_SMD_6.7x2.6mm | Switch, single pole double throw |
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| TP1-TP6 | 1.25mm | Test Point |
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| TP7 | TestPoint | Temperature sensor |
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| TP8 | 3.3V | test point |
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| TP9 | U0TXD | test point |
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| TP10 | CHIP_EN | test point |
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| TP11 | GND | test point |
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| TP12 | U0RXD | test point |
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| TP13 | GPIO9 | test point |
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| Y1 | CTS3-32.768-12.5-20-R | Crystal,3.2mm x 1.5mm,32.768KHz,12.5pF,-40-85C |
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| Y2 | C3E40000121010X | C3E Series 40 MHz ▒10 ppm 12 pF -40 to +85 ░C SMT Microprocessor Crystal Unit |
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