2 layers57 × 55.2 mm
LogicAnalyzer
gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software
10 parts5.1kGPL-3.0
2 layers65 × 30 mm
Alex pi hat
not-sample-text/alex-pi-hat1A Raspberry Pi HAT designed as a handheld topography device, integrating multiple sensors and an OLED display for terrain mapping, elevation tracking, and environmental sensing.
- Size
- 65 × 30 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 36
- Pads
- 74
- Tracks, vias
- 0, 0
- Pours
- 1
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Dec 2025
- Updated
- 10 Mar 2026
Overview
Alex pi hat is an open-source printed circuit board by not-sample-text, from the not-sample-text/alex-pi-hat repository on GitHub. It is a 2-layer board of 65 × 30 mm with 10 parts on 36 nets.
Its parts include 5 ICs and 1 connector.
README
README.mdAlex Pi HAT
A Raspberry Pi HAT designed as a handheld topography device, integrating multiple sensors and an OLED display for terrain mapping, elevation tracking, and environmental sensing.
Features
- BME280 - Temperature, humidity, and barometric pressure sensor (for altitude estimation)
- MPU6050 - 6-axis accelerometer and gyroscope for orientation and tilt sensing
- VL53L0X - Time-of-Flight distance sensor (up to 2m range) for terrain profiling
- 0.96" OLED Display - 128x64 I2C monochrome display for real-time topographic data visualization
- User Button - Programmable tactile switch for data capture and mode selection
- 4x M2.5 Mounting Holes - Standard Pi HAT mechanical compatibility
Hardware Specifications
- Form Factor: Raspberry Pi HAT (standard 40-pin GPIO connector)
- Communication: I2C bus (shared by all sensors)
- Power: Powered directly from Raspberry Pi 3.3V/5V rails
Schematic & Layout
Applications
- Handheld terrain mapping and topographic surveying
- Elevation profiling and altitude tracking
- Trail mapping and outdoor navigation
- Geological surveying
- Cave exploration and mapping
- Construction site surveys
- Environmental field research
Design Files
This project was designed using KiCad 9.0. All design files are included:
- Schematic:
alex-pi-hat.kicad_sch - PCB Layout:
alex-pi-hat.kicad_pcb - Custom footprints and symbols in
Imports/
License
[Add your license here]
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole_2.7mm_M2.5 | Project-Footprints:MountingHole_2.7mm_M2.5 | MH1, MH2, MH3, MH4 |
| 1 | DM-OLED096-636 | Library:MODULE_DM-OLED096-636 | U7 |
| 1 | GPIO | Library:PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | SKQUAAA010 | Library:SKQUAAA010 | U5 |
| 1 | module_bme280 | Library:module_bme280 | U2 |
| 1 | module_mpu6050 | Library:module_mpu6050 | U3 |
| 1 | module_vl53L0x-v2 | Library:module_vl53l0x | U4 |
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Questions
How big is the Alex pi hat PCB?
It measures 65 × 30 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Alex pi hat use?
10 parts. 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 Alex pi hat KiCad files?
From the not-sample-text/alex-pi-hat repository on GitHub, at the commit this page was made from: the board is alex-pi-hat.kicad_pcb and its schematic alex-pi-hat.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Alex pi hat design in my own project?
Its repository states no licence, so its author keeps all rights: ask not-sample-text before reusing the design.