
Arduino uno
Chicken-Fried/Cave-Uno
Modernized Arduino Uno R3 compatible board powered by Microchip ATmega328PB. Features driverless USB-C, 1.5A sync buck, ideal-diode OR-ing, dual I2C/SPI/UART, and LiDAR topographic artwork.
Bluetooth Tracker inspired by the Tile Mate Bluetooth Tracker, built around the Nordic nRF51822 Bluetooth transceiver.
Bluetooth tracker is an open-source printed circuit board by adwjli, from the adwjli/bluetooth-tracker repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 35 × 35 mm with 25 parts on 17 nets, routed with 146 tracks and 52 vias.
It is built around the BAL-NRF01D3, NX2520SA-16MHZ-STD-CSW-5 and PKMCS0909E4000-R1. Its parts include 12 capacitors, 3 resistors, 1 IC, 1 transistor and 1 connector. It belongs with the radio and wireless boards and the nRF52 and nRF5x boards of this library.
A Bluetooth Tracker inspired by the Tile Mate Bluetooth Tracker, built around the Nordic nRF51822 Bluetooth transceiver. The device can be programmed to pair with any Android or iOS mobile device via a mobile app.
The design of the trace antenna was provided by Texas Instrument in Application Note AN043. It is an Inverted F Antenna (IFA) with a matched 50 Ohm characteristic impedance at 2.4GHz. The device is capable of up to 4dBm of transmit power.
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| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 100nF | Capacitor_SMD:C_0402_1005Metric | C7, C8, C15 |
| 2 | 15pF | Capacitor_SMD:C_0402_1005Metric | C2, C4 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R3 |
| 2 | 1nF | Capacitor_SMD:C_0402_1005Metric | C5, C6 |
| 2 | 22pF | Capacitor_SMD:C_0402_1005Metric | C1, C3 |
| 1 | 1.0pF | Capacitor_SMD:C_0402_1005Metric | C13 |
| 1 | 1.5pF | Capacitor_SMD:C_0402_1005Metric | C14 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 3.3nH | Inductor_SMD:L_0402_1005Metric | L3 |
| 1 | 47nF | Capacitor_SMD:C_0402_1005Metric | C10 |
| 1 | ANTENNA-IFA-2.4GHZ | global-library:ANTENNA-IFA-2.4GHZ-2 | AE1 |
| 1 | BAL-NRF01D3 | global-library:FCBGA-5N | GN1 |
| 1 | CONN4PROG | global-library:CONN4PROG | J1 |
| 1 | CR2032_CLIP2 | global-library:CR2032_CLIP2 | BAT1 |
| 1 | ECS-_327-12_5-34B-TR | global-library:SMD-2_3.2x1.5mmG | XTAL1 |
| 1 | FDV301N_G | global-library:SOT-23-3_G | Q1 |
| 1 | NRF51822-QFAA-T_G | global-library:QFN-48-1EP_6x6mmG | U1 |
| 1 | NX2520SA-16MHZ-STD-CSW-5 | global-library:SOIC254P1016X440-4N | XTAL2 |
| 1 | PKMCS0909E4000-R1 | global-library:Piezo_9x9mm_PKLCS1212E40A1-R1 | BZ1 |
It measures 35 × 35 mm and has 4 copper layers, 0.8 mm thick.
25 parts, built around the BAL-NRF01D3, NX2520SA-16MHZ-STD-CSW-5 and PKMCS0909E4000-R1. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the adwjli/bluetooth-tracker repository on GitHub, at the commit this page was made from: the board is bluetooth-tracker.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Chicken-Fried/Cave-Uno
Modernized Arduino Uno R3 compatible board powered by Microchip ATmega328PB. Features driverless USB-C, 1.5A sync buck, ideal-diode OR-ing, dual I2C/SPI/UART, and LiDAR topographic artwork.



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