2 layers41.8 × 36.4 mm
Hexpansion L80
TechCabin/EMFBadge-Hexpansions-GPS
A GPS Hexpansion module and basic software implementation for the Tildagon badge.
22 parts12
2 layers33 × 74.9 mm
Popsicle
peon374/PopskillPopSkill combines high-performance Software Defined Radio (SDR), Wi-Fi analysis, Bluetooth discovery, and RF research tools into a single handheld platform.
- Size
- 33 × 74.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 107
- Pads
- 228
- Tracks, vias
- 9, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 31 Mar 2024
- Updated
- 8 Jun 2026
Overview
Popsicle is an open-source printed circuit board by peon374, from the peon374/Popskill repository on GitHub. It is a 2-layer board of 33 × 74.9 mm with 21 parts on 107 nets, routed with 9 tracks and 0 vias.
It is built around the ESP32-S3-WROOM-1-N16R2, L80RE-M37 and TJA1051T. Its parts include 11 capacitors, 5 ICs, 3 connectors, 1 resistor and 1 crystal. It belongs with the radio and wireless boards and the ESP32 boards of this library.
Main components
3
ESP32-S3-WROOM-1-N16R2
SMD,25.5x18mm-103.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 On-board PCB Antenna UART、SDIO、SPI、I2C、GPIO、PWM、ADC、I2S、JTAG、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
L80RE-M37
SMD-12P-165dBm -40℃~+85℃ 3V~4.3V SMD-12P GNSS Modules ROHSQuectelGNSS Modules
TJA1051T
SOIC-8-40℃~+150℃ 2.5mA 4.5V~5.5V 5Mbps 70mA CAN Transceiver SOIC-8 CAN Transceivers ROHSNXP SemiconductorsCAN Transceivers
README
README.md[!WARNING] Alpha Hardware & Software
PopSkill is currently in early alpha development and should be considered experimental. Features, hardware support, user interfaces, APIs, file formats, and workflows may change without notice between releases. Stability, performance, and compatibility are not yet guaranteed.
This project is intended for testing, evaluation, and community feedback. Do not rely on PopSkill for mission-critical, safety-critical, or production environments.
PopSkill
Portable Wireless Intelligence
PopSkill combines high-performance Software Defined Radio (SDR), Wi-Fi analysis, Bluetooth discovery, and RF research tools into a single handheld platform. It is designed for engineers, researchers, security professionals, and wireless enthusiasts who need a portable way to investigate, analyse, and understand the wireless world around them.
Inspired by the portability of modern handheld wireless tools and powered by professional-grade radio hardware, PopSkill brings together multiple wireless technologies in a single device.
Why PopSkill?
Most wireless tools focus on one technology at a time. PopSkill combines SDR, Wi-Fi, Bluetooth, and Sub-GHz analysis into a unified platform that can be taken anywhere.
Whether you are diagnosing a Wi-Fi issue, investigating RF interference, researching wireless protocols, analysing Bluetooth devices, or exploring the radio spectrum, PopSkill provides a single device designed for field work.
Project Status
PopSkill is an active development, the current revision of the hardware has successfully been used for NFC and LoRA analysis at 430MHz and 850-950MHz. We will be actively working on hardware and firmware and expect to have a beta release in October.
Community feedback, bug reports, feature suggestions, and contributions are welcome.
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3, C4, C5, C6, C7, C8, C9, C10, C11 |
| 2 | 22pF | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 1 | 1K | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 8Mhz | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | Conn_01x08 | bots:maglock-8pin | J1 |
| 1 | ESP32-S3-WROOM-1-N16R2 | bots:XCVR_ESP32-S3-WROOM-1-N16R2 | U4 |
| 1 | L80RE-M37 | bots:XCVR_L80RE-M37 | U3 |
| 1 | MCP2515-xSO | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U1 |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Molex_104031-0811 | J3 |
| 1 | PN5321A3HN_C1xx | Package_DFN_QFN:HVQFN-40-1EP_6x6mm_P0.5mm_EP4.1x4.1mm | U5 |
| 1 | TJA1051T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J2 |
Questions
How big is the Popsicle PCB?
It measures 33 × 74.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Popsicle use?
21 parts, built around the ESP32-S3-WROOM-1-N16R2, L80RE-M37 and TJA1051T. 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 Popsicle KiCad files?
From the peon374/Popskill repository on GitHub, at the commit this page was made from: the board is schematic/popsicle.kicad_pcb and its schematic schematic/popsicle.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Popsicle design in my own project?
Its repository states no licence, so its author keeps all rights: ask peon374 before reusing the design.
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