2 layers103 × 30.5 mm
2 layers26.3 × 42.5 mm
Usbjig
Otus9051/uart-usb-jig4KiCad Files for a Samsung USB to UART JIG (619k Ohm Resistor)
- Size
- 26.3 × 42.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 28
- Pads
- 73
- Tracks, vias
- 81, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 28 Jun 2024
- Updated
- 28 Jun 2024
Overview
Usbjig is an open-source printed circuit board by Otus9051, from the Otus9051/uart-usb-jig repository on GitHub. It is a 2-layer board of 26.3 × 42.5 mm with 9 parts on 28 nets, routed with 81 tracks and 0 vias.
Its parts include 4 capacitors, 2 resistors, 2 connectors and 1 IC.
README
README.mdMicroUSB to TTL to USB converter
Should work with almost any Samsung device
-
Connectors:
- Micro USB B Male
- USB A 2.0 Female
-
Utitlizes CP2102N as the Serial to USB convertor
-
ID pin of Micro USB B Male is connected to 619K Ohm Resistor
-
619K Ohm Resistance triggers Samsung MUIC to switch to USB UART mode
-
LCSC Part Numbers included in Bill of Materials
-
Pulls 5V from USB A, Micro USB B gets 3.3V from CP2102 VDD (refer documentation)
P.S.: This is my first try at making a PCB, please let me know any issues if you come across any
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0.1uF | Capacitor_SMD:CP_Elec_4x5.4 | C2, C4 |
| 1 | 1.0 uF | Capacitor_SMD:C_0201_0603Metric | C1 |
| 1 | 4.7k | Resistor_SMD:R_0201_0603Metric | R2 |
| 1 | 4.7uF | Capacitor_SMD:CP_Elec_4x5.4 | C3 |
| 1 | 619K | Resistor_SMD:R_0201_0603Metric | R1 |
| 1 | CP2102N-Axx-xQFN28 | Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U1 |
| 1 | USB_A | Connector_USB:USB_A_Molex_67643_Horizontal | J2 |
| 1 | ZX80-B-5SA_30_ | ZX80-B-5SA_30_:ZX80B5SA30 | J1 |
Questions
How big is the Usbjig PCB?
It measures 26.3 × 42.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usbjig use?
9 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 Usbjig KiCad files?
From the Otus9051/uart-usb-jig repository on GitHub, at the commit this page was made from: the board is usbjig.kicad_pcb and its schematic usbjig.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usbjig design in my own project?
Its repository states no licence, so its author keeps all rights: ask Otus9051 before reusing the design.
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