Rd
About the Rd PCB
Rd is an open source PCB design by JBlitzar, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 18.5 × 32 mm, with 13 components from 9 distinct parts.
Other key parts include the GL823K-HCY04. By type, the board carries 6 resistors, 3 capacitors, 1 IC and 1 LED.
From the project
microSD reader
microSD card reader. it exposes microSD cards as a block device that you can read and write to!
Features: - dead-simple schematic thanks to the GL823K chip - green status LED for activity - 4mm keychain hole - supports USB 2.0 HS and microSD HS. 30+ MB/s speeds confirmed!
I made this project because I needed a project scoped to be able to speedrun in 36 hours wall-clock and very little actual working time. It grants me utility-- this way I can read and write to microSD cards super easily in a small form factor, using a dongle I created!! I think microSD cards are uniquely very versatile.…
Main components on the Rd
Rd bill of materials (BOM)
13 components, 9 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | GL823K-HCY04 GENESYS(创惟) | SSOP-16_L4.9-W3.9-P0.64-LS6.0-BL | U1 |
| 1 | TF-01A 韩国韩荣 | TF-SMD_TF-01A | Card1 |
| 1 | U-USBAR04P-M003 U-USBAR04P-M001 Ckmtw(灿科盟) | USB-SMD_KH-USB-AM-4P-CB | USB1 |
| 1 | KT-0805G 0805G KENTO | LED0805-R-RD | LED1 |
| 1 | CL05B104KO5NNNC 100nF SAMSUNG(三星) | C0402 | C1 |
| 1 | CL05A106MQ5NUNC 10uF SAMSUNG(三星) | C0402 | C3 |
| 1 | CL21A476MQYNNNE 47uF SAMSUNG(三星) | C0805 | C4 |
| 1 | 0402WGF4701TCE 4.7k UNI-ROYAL(厚声) | R0402 | R1 |
| 5 | 0402WGF1002TCE 10k UNI-ROYAL | R0402 | R7, R8, R9, R10, R11 |
Rd design files
The KiCad project lives in the JBlitzar/rd repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB/rd/rd.kicad_pcb
- SchematicPCB/rd/rd.kicad_sch
- BOMPCB/rd/production/rd_1_bom.csv
Rd: common questions
How big is the Rd PCB?
The Rd measures 18.5 × 32 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Rd?
13 components, from 9 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 Rd design files?
From the JBlitzar/rd 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 Rd design in my own project?
Yes, under the terms of its GPL-3.0 license, which JBlitzar chose for the repository.