2 layers32 × 53 mm
DirewolfTracker
Mineinjava/ffellowship
Frequency Fellowship: Examining Radio Wave Propagation from a High Altitude Balloon
25 parts1
2 layers32 × 76.1 mm
DPicoTracker
Mineinjava/ffellowship1Frequency Fellowship: Examining Radio Wave Propagation from a High Altitude Balloon
- Size
- 32 × 76.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 56
- Pads
- 220
- Tracks, vias
- 270, 51
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 May 2025
- Updated
- 21 Jun 2025
Overview
DPicoTracker is an open-source printed circuit board by Mineinjava, from the Mineinjava/ffellowship repository on GitHub. It is a 2-layer board of 32 × 76.1 mm with 49 parts on 56 nets, routed with 270 tracks and 51 vias.
It is built around the ATGM336H-5N31, BMP280 and TPS61221DCK, with the CJ431, MAX809STRG-TP and AO3401A among its other parts. Its parts include 15 capacitors, 9 resistors, 6 ICs, 5 inductors and 2 transistors. It belongs with the radio and wireless boards and the RP2040 boards of this library.
Main components
8
ATGM336H-5N31
SMD,10.1x9.7mm-148dBm -40℃~+85℃ 2.5m 2.7V~3.6V 25mA@3.3V 35s GPS、BDS UART、I2C SMD,10.1x9.7mm GNSS Modules ROHS杭州中科微GNSS Modules
BMP280
LGA-8(2x2.5)-40℃~+85℃ 0.12hpa 1.5pa/K 1.71V~3.6V 1hpa 300nA 30Kpa~1.1bar I2C、SPI Integrated ADC and digital interface、On-chip calibration and non-volatile storage、Standby mode、On-chip temperature output LGA-8(2x2.5) Pressure Sensors ROHSBoschPressure Sensors
TPS61221DCK
SC-70-6-40℃~+125℃@(TJ) 1 200mA 3.3V 5.5uA 700mV~5.5V Boost Boost Built-in Fixed Yes SC-70-6 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
CJ431
SOT-89-3-25℃~+85℃@(Ta) 100mA 1mA 2.5V~36V 50ppm/℃ Adjustable Parallel ±0.5% SOT-23 Voltage Reference ROHSJiangsu Changjing Electronics Technology (CJ)Voltage Reference
MAX809STRG-TP
SOT-23-40℃~+85℃ 1 1V~5.5V 2.93V 240ms 3uA Active Low Push-pull SOT-23 Supervisor and Reset ICs ROHSTECH PUBLICUncategorisedAO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
1XXB26000MAA
SMD2520-4P-40℃~+85℃ 1.5mA 1.8V~2.8V 26MHz ±1.5ppm SMD2520-4P Temperature Compensated Crystal Oscillators (TCXO) ROHSKDS DaishinkuTemperature Compensated Crystal Oscillators (TCXO)
SI5351A-B-GT
MSOP-10-40℃~+85℃ 1.71V~3.6V 200MHz 3 I2C MSOP-10 Clock Generators, PLLs, Frequency Synthesizers ROHSSilicon LabsClock Generators, PLLs, Frequency Synthesizers
README
direwolfTracker/README.mdDirewolf-powered Tracker
This tracker uses direwolf to communicate with an external radio like a HT.
BOM:
| Id | Designator | Footprint | Quantity | Designation | Supplier and ref |
|---|---|---|---|---|---|
| 1 | C2, C1, C3 | C_1206_3216Metric | 3 | 10µF | C13585 |
| 3 | Q1 | Q_SOT-23 | 1 | MMBT2222A | C82460 |
| 4 | C20, C19, C21 | C_1206_3216Metric | 3 | 100nF | C82460 |
| 7 | U1 | Texas_R-PDSO-G6 | 1 | TPS61222DCK | C116461 |
| 9 | R1 | R_1206_3216Metric | 1 | 10kΩ | C132649 |
| 10 | R3 | R_1206_3216Metric | 1 | 2.7kΩ | C2930416 |
| 12 | IC1 | ATGM336H5N31 | 1 | ATGM336H-5N31 | C2940946 |
| 13 | R2 | R_1206_3216Metric | 1 | 100kΩ | C2930416 |
| 14 | U2 | DIP-8_W7.62mm | 1 | ICM7555xP | C22461592 |
| 15 | R4 | R_1206_3216Metric | 1 | 1MΩ | C108083 |
| 16 | L1 | L_1206_3216Metric | 1 | 4.7µH | C13585 |
Additionally:
- 1 Raspberry Pi Zero
- 1 GPS Antenna
- 1 micro usb sound card
- 1 TRRS 3.5mm cable
- 1 TRS 3.5mm cable
- 1 TRS 2.5mm cable
- 1 external radio
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100nF | Capacitor_SMD:C_1206_3216Metric | C1, C8, C9, C10, C17, C18, C19 |
| 6 | 10kΩ | Resistor_SMD:R_1206_3216Metric | R8, R9, R11, R12, R14, R15 |
| 2 | 180pF | Capacitor_SMD:C_1206_3216Metric | C11, C13 |
| 2 | 18pF | Capacitor_SMD:C_1206_3216Metric | C14, C16 |
| 2 | 560nH | Inductor_SMD:L_1206_3216Metric | L2, L3 |
| 2 | 56nH | Inductor_SMD:L_1206_3216Metric | L4, L5 |
| 2 | AO3401A | PCM_JLCPCB:Q_SOT-23 | Q1, Q2 |
| 2 | CJ431 | PCM_JLCPCB:SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR | U3, U4 |
| 1 | 100kΩ | Capacitor_SMD:C_1206_3216Metric | R6 |
| 1 | 10kΩ | Capacitor_SMD:C_1206_3216Metric | R7 |
| 1 | 10µF | Capacitor_SMD:C_1206_3216Metric | C5 |
| 1 | 1nF | Capacitor_SMD:C_1206_3216Metric | C7 |
| 1 | 200kΩ | Diode_SMD:D_1206_3216Metric | R5 |
| 1 | 300pF | Capacitor_SMD:C_1206_3216Metric | C12 |
| 1 | 30pF | Capacitor_SMD:C_1206_3216Metric | C15 |
| 1 | 4.7µH | Inductor_SMD:L_1206_3216Metric | L1 |
| 1 | ATGM336H-5N31 | ATGM336H-5N31:ATGM336H5N31 | IC1 |
| 1 | BMP280 | Package_LGA:Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering | U8 |
| 1 | C132296 | Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm | Y2 |
| 1 | Conn_01x02_Pin | Connector_PinSocket_2.00mm:PinSocket_1x02_P2.00mm_Vertical | J1 |
| 1 | Conn_01x05_Pin | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J2 |
| 1 | GPS_ANT | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | AE3 |
| 1 | HF 14MHz ANT | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | AE1 |
| 1 | MAX809STRG | footprints1:SOT-23_ONS | U7 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_Common_Unspecified | A1 |
| 1 | Si5351A-B-GT | Package_SO:MSOP-10_3x3mm_P0.5mm | Y1 |
| 1 | TPS61221DCK | Package_TO_SOT_SMD:Texas_R-PDSO-G6 | U5 |
| 1 | VHF 144MHz ANT | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | AE2 |
The 45 most common of 49 parts.
Questions
How big is the DPicoTracker PCB?
It measures 32 × 76.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DPicoTracker use?
49 parts, built around the ATGM336H-5N31, BMP280, TPS61221DCK and CJ431. 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.
Where can I download the DPicoTracker KiCad files?
From the Mineinjava/ffellowship repository on GitHub, at the commit this page was made from: the board is dPicoTracker/dPicoTracker.kicad_pcb and its schematic Bare_PICO_PCBA_UNUSED/dPicoTracker.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DPicoTracker design in my own project?
Its repository states no licence, so its author keeps all rights: ask Mineinjava before reusing the design.
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