4 layers150 × 95 mm
Skysweep32 rev c
bobberdolle1/SkySweep32
Open-source passive multi-band RF monitoring system | 855–925 MHz, 2.4 GHz, 5.8 GHz | Rev C first prototype
103 parts33GPL-3.0
2 layers72.5 × 95 mm
Sondehound
jonhnet/sonde-search2a couple dorks trying to break into the easiest hobby ever
- Size
- 72.5 × 95 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 51
- Pads
- 144
- Tracks, vias
- 204, 20
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 23 Jan 2023
- Updated
- 4 Nov 2026
Overview
Sondehound is an open-source printed circuit board by jonhnet, from the jonhnet/sonde-search repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 72.5 × 95 mm with 39 parts on 51 nets, routed with 204 tracks and 20 vias.
It is built around the MT3608, BQ24074RGTR and SMAJ5.0A. Its parts include 11 resistors, 6 connectors, 5 capacitors, 5 diodes and 2 ICs.
Main components
3
MT3608
SOT-23-6-40℃~+85℃ 1 1.2MHz 100uA、1.6mA 2A 2V~24V Adjustable Boost Boost Built-in No SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC Converters
BQ24074RGTR
QFN-16-EP(3x3)-40℃~+125℃ 1 1.5A 4.2V 4.35V~10.2V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
SMAJ5.0A
DO-214AC(SMA)-65℃~+150℃ 400W@10/1000us 43.5A 5V 7V 800uA 9.2V TVS Unidirectional DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSMDDESD And Surge Protection (TVS/ESD)
README
README.mdsonde-search
a couple dorks trying to break into the easiest hobby ever
Conda environment
The conda environment is pinned in environment.yml (versions only, no build hashes — portable across platforms).
Create a fresh env:
mamba env create -n sondesearch -f environment.ymlSync an existing env to match (adds new deps, removes removed ones):
mamba env update -n sondesearch -f environment.yml --pruneAfter changing deps locally, regenerate the lock and commit it:
conda env export --no-builds | sed '/^prefix:/d' > environment.ymlTests
From the repo root:
pytestEach subproject (aprs-backhaul/, analyzers/paneltest/, website/backend/) can also be tested independently from its own directory.
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Bat Clip | Battery:BatteryClip_Keystone_54_D16-19mm | J2, J3, J5, J6 |
| 4 | MountingHole_2.7mm_M2.5 | MountingHole:MountingHole_2.7mm_M2.5 | MH1, MH2, MH3, MH4 |
| 3 | 4.7uF 16V | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3 |
| 3 | 680 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R14, R15, R16 |
| 3 | Green LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D12, D13, D14 |
| 2 | 22uF 16V | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C4, C5 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 2 | tbd | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 110k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8 |
| 1 | 15k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 1 | 4.7uH | Inductor_SMD:L_Chilisin_BMRB00050518-B | L1 |
| 1 | 47k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | >2A | Diode_SMD:D_SMA_Handsoldering | D2 |
| 1 | BQ24074RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U1 |
| 1 | GPIO | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J4 |
| 1 | MT3608 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | SMAJ5.0A | Diode_SMD:D_SMA | D1 |
| 1 | SW_SPDT | Lectrobox:SS12D10G6 | SW1 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_GCT_USB4125-xx-x_6P_TopMnt_Horizontal | J1 |
The 35 most common of 39 parts.
Questions
How big is the Sondehound PCB?
It measures 72.5 × 95 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sondehound use?
39 parts, built around the MT3608, BQ24074RGTR and SMAJ5.0A. 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 Sondehound KiCad files?
From the jonhnet/sonde-search repository on GitHub, at the commit this page was made from: the board is hardware/sondehound-carrier/Rev A/sondehound.kicad_pcb and its schematic hardware/sondehound-carrier/Rev A/sondehound.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sondehound design in my own project?
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).
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