Pulse echo azimuthal scanner
Jerome-Graves·pulse-echo-azimuthal-scanner·hardware/pcb/Pulse-Echo Azimuthal Scanner.kicad_pcb
About the Pulse echo azimuthal scanner PCB
Pulse echo azimuthal scanner is an open source RP2040/RP2350 PCB design by Jerome-Graves, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 65 mm, with 14 components from 13 distinct parts.
Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the HX711. By type, the board carries 7 connectors, 4 ICs, 2 resistors and 1 capacitor.
It belongs with the test & measurement, robotics & motion and science & space designs in this gallery.
From the project
Single-transducer ultrasonic scanner measuring crystal orientation fabric of ice core disks: hardware, firmware, control software and machine manual
A single-transducer ultrasonic scanner that measures the crystal orientation fabric (COF) of an ice core disk. The machine rotates a 100 mm ice disk through a full turn while a spring-free vertical carriage repeatedly seats an ultrasonic probe against the rim under a controlled contact force. At each azimuth the probe fires a pulse across the diameter and records the back-wall echoes. Because sound travels faster along the crystal c-axis than across it, the velocity varies with azimuth, and the pattern v(theta) = v0 + A cos 2(theta - phi) reveals the predominant crystal orientation without…

Main components on the Pulse echo azimuthal scanner
Pulse echo azimuthal scanner bill of materials (BOM)
14 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Pico | RPi_Pico_SMD_TH | U102 |
| 1 | HX711 | HX711_Module | U103 |
| 2 | ~ | Adafuit_TCM2209 | U201, U401 |
| 1 | 12V input | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J101 |
| 1 | Encoder 1 | PinSocket_1x03_P2.54mm_Vertical | J102 |
| 1 | Encoder 2 | PinSocket_1x03_P2.54mm_Vertical | J103 |
| 1 | TMC_PWR_0 | PinHeader_1x02_P2.54mm_Vertical | J108 |
| 1 | TMC_PWR_1 | PinHeader_1x02_P2.54mm_Vertical | J109 |
| 1 | DS18B20 | PinSocket_1x03_P2.54mm_Vertical | J111 |
| 1 | Load Cell | PinSocket_1x04_P2.54mm_Vertical | J113 |
| 1 | 220uF | CP_Radial_D10.0mm_P5.00mm | C101 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R101 |
| 1 | 4.7k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R102 |
Pulse echo azimuthal scanner design files
The KiCad project lives in the Jerome-Graves/pulse-echo-azimuthal-scanner repository on GitHub; these links point at the commit this page was built from.
Pulse echo azimuthal scanner: common questions
What microcontroller does the Pulse echo azimuthal scanner use?
The Pulse echo azimuthal scanner is built around the Pico, from the RP2040/RP2350 family.
How big is the Pulse echo azimuthal scanner PCB?
The Pulse echo azimuthal scanner measures 100 × 65 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pulse echo azimuthal scanner?
14 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the Pulse echo azimuthal scanner design files?
From the Jerome-Graves/pulse-echo-azimuthal-scanner repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Pulse echo azimuthal scanner design in my own project?
Yes, under the terms of its MIT license, which Jerome-Graves chose for the repository.
Can I test firmware for the Pulse echo azimuthal scanner without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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