4 layers17 × 22.1 mm
2 layers23.2 × 52.4 mm
PICOBALLOON
sjacksonhodum/aphidpico balloon transmitter board designed in kicad
- Size
- 23.2 × 52.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 53
- Pads
- 133
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 May 2026
- Updated
- 28 May 2026
Overview
PICOBALLOON is an open-source printed circuit board by sjacksonhodum, from the sjacksonhodum/aphid repository on GitHub. It is a 2-layer board of 23.2 × 52.4 mm with 27 parts on 53 nets.
It is built around the MAX-M10S, ASTX-H11-25.000MHZ-T and SI5351A-B-GT. Its parts include 10 capacitors, 6 resistors, 3 transistors, 2 ICs and 1 connector. It belongs with the RP2040 boards of this library.
Main components
3
MAX-M10S
LCC-18_10.1X9.7LCC-18_10.1X9.7 New Arrivals ROHSu-bloxUncategorised
ASTX-H11-25.000MHZ-T
SMD3225-4P-30℃~+75℃ 25MHz 3.3V 5.5mA HCMOS ±2.5ppm SMD3225-4P Temperature Compensated Crystal Oscillators (TCXO) ROHSAbraconTemperature 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
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 47uF | Capacitor_SMD:C_0805_2012Metric | C6, C7, C8, C9 |
| 3 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C2, C3, C4 |
| 3 | Conn_01x02_Socket | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | gps-antenna1, POWER1, WSPR-antenna1 |
| 2 | 10K | Resistor_SMD:R_0402_1005Metric | R2, R4 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C5 |
| 2 | 4.7k | Resistor_SMD:R_0402_1005Metric | R5, R6 |
| 2 | 510Ω | Resistor_SMD:R_0402_1005Metric | R1, R3 |
| 2 | Q_PMOS_GDS (DMP2305U) | footprints:SOT23_DMP2305U_DIO | Q1, Q2 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C16 |
| 1 | APX803-26SAG-7 | footprints:SOT-23_DIO | U2 |
| 1 | ASTX-H11-25.000MHZ-T | schemagic:SMD3225 | Q3 |
| 1 | Conn_02x05_Top_Bottom | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J1 |
| 1 | MAX-M10S | RF_GPS:ublox_MAX | U1 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_Common_Unspecified | A1 |
| 1 | Si5351A-B-GT | Package_SO:MSOP-10_3x3mm_P0.5mm | Y2 |
Questions
How big is the PICOBALLOON PCB?
It measures 23.2 × 52.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PICOBALLOON use?
27 parts, built around the MAX-M10S, ASTX-H11-25.000MHZ-T and SI5351A-B-GT. 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 PICOBALLOON KiCad files?
From the sjacksonhodum/aphid repository on GitHub, at the commit this page was made from: the board is PICOBALLOON.kicad_pcb and its schematic PICOBALLOON.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PICOBALLOON design in my own project?
Its repository states no licence, so its author keeps all rights: ask sjacksonhodum before reusing the design.
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