Rp24-usb tester
About the Rp24-usb tester PCB
Rp24-usb tester is an open source PCB design by mikesmitty, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 50 × 25 mm, with 36 components from 16 distinct parts.
Other key parts include the MT2492. By type, the board carries 14 diodes, 8 resistors, 5 transistors, 4 connectors, 3 capacitors and 1 IC.
It belongs with the audio designs in this gallery.
From the project
DIY DCC decoder for model railroad locomotives in an E24 form factor, powered by an RP2350 (Raspberry Pi Pico 2)
Inspired by the rp2040-decoder project by gab-k: https://github.com/gab-k/RP2040-Decoder
Main components on the Rp24-usb tester
Rp24-usb tester bill of materials (BOM)
36 components, 16 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MT2492 | SOT-23-6 | U1 |
| 5 | SS8050 | SOT-23 | Q1, Q2, Q3, Q4, Q5 |
| 1 | POWER | PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | 505070-2422 | CONN-SMD_24P-P0.35_5050702422 | J4 |
| 1 | AUX | PinHeader_1x05_P2.54mm_Vertical | J6 |
| 1 | USB_C_RECEPTACLE_USB2.0_16P USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | P1 |
| 13 | C2290 WHITE_LED | LED_0603_1608Metric | D1, D2, D3, D4, D5, D6, D7, D8 +5 |
| 1 | SS34 | D_SMA | D13 |
| 1 | 22UH 22uH | IND-SMD_L4.6-W4.2_SMMS0420 | L1 |
| 2 | 22UF 22uF | C_0805_2012Metric | C1, C3 |
| 1 | 22NF 22nF | C_0402_1005Metric | C2 |
| 2 | 5.1K | R_0402_1005Metric | R1, R2 |
| 1 | 110K | R_0603_1608Metric | R3 |
| 1 | 15K | R_0603_1608Metric | R4 |
| 1 | 100R | R_0402_1005Metric | R5 |
| 3 | 220R | R_Array_Concave_4x0402 | RN1, RN2, RN3 |
Rp24-usb tester design files
The KiCad project lives in the mikesmitty/rp24-dcc-decoder repository on GitHub; these links point at the commit this page was built from.
Rp24-usb tester: common questions
How big is the Rp24-usb tester PCB?
The Rp24-usb tester measures 50 × 25 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Rp24-usb tester?
36 components, from 16 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Rp24-usb tester design files?
From the mikesmitty/rp24-dcc-decoder repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Rp24-usb tester design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which mikesmitty chose for the repository.
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