2 layers25.3 × 30.5 mm
Usb serial v0
curtacircuitos/projetos
Done: Esquemático baseado no NodeMCU; Footprints definidos com base na BOM disponibilizada; Corrigir erros de pin assignment de alguns footprints (e.g.
17 parts1
2 layers25.3 × 36 mm
Usb serial
curtacircuitos/projetos1Done: Esquemático baseado no NodeMCU; Footprints definidos com base na BOM disponibilizada; Corrigir erros de pin assignment de alguns footprints (e.g.
- Size
- 25.3 × 36 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 25
- Pads
- 76
- Tracks, vias
- 116, 0
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 8 Mar 2016
- Updated
- 24 Mar 2016
Overview
Usb serial is an open-source printed circuit board by curtacircuitos, from the curtacircuitos/projetos repository on GitHub. It is a 2-layer board of 25.3 × 36 mm with 21 parts on 25 nets, routed with 116 tracks and 0 vias.
It is built around the CH340G and S8050. Its parts include 5 capacitors, 4 resistors, 3 connectors, 2 transistors and 1 IC. It belongs with the interfaces and adapters boards of this library.
Main components
2README
usb_serial/README.mdBreakout USB-serial
Status do projeto
Done:
- Esquemático baseado no NodeMCU;
- Footprints definidos com base na BOM disponibilizada;
- Corrigir erros de pin assignment de alguns footprints (e.g. SOT-23 dos transistores) --> Como fazer no KiCad?
- Edit footprint, clicar nos pads e alterar os números. Salvar em uma nova lib, importá-la no sch e reassign
- Layout v0
- Layout da placa com furos para montagem e silkscreen.
To do:
- Importante: confirmar footprints a serem usados (componentes comerciais mais viáveis).
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 100nF | Capacitors_SMD:C_0402 | C2, C4 |
| 2 | 12k | Resistors_SMD:R_0402 | R3, R4 |
| 2 | 22pF | Capacitors_SMD:C_0402 | C1, C3 |
| 2 | 470 | Resistors_SMD:R_0402 | R1, R2 |
| 2 | CONN_01X07 | Pin_Headers:Pin_Header_Straight_1x07 | P2, P3 |
| 2 | S8050 | SOT-23_S8050:SOT-23_S8050 | Q1, Q2 |
| 1 | 10uF | Capacitors_Tantalum_SMD:TantalC_SizeB_EIA-3528_HandSoldering | C5 |
| 1 | CH340G | CH340G:SOP-16 | U1 |
| 1 | CRYSTAL_SMD | Crystals:Crystal_SMD_2520_4Pads | X1 |
| 1 | D_Schottky_x2_ACom_AKK | TO_SOT_Packages_SMD:SOT-23 | D1 |
| 1 | USB_OTG | Connect:USB_Micro-B_10103594-0001LF | P1 |
The 17 most common of 21 parts.
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Questions
How big is the Usb serial PCB?
It measures 25.3 × 36 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usb serial use?
21 parts, built around the CH340G and S8050. 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 Usb serial KiCad files?
From the curtacircuitos/projetos repository on GitHub, at the commit this page was made from: the board is usb_serial/usb_serial.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb serial design in my own project?
Its repository states no licence, so its author keeps all rights: ask curtacircuitos before reusing the design.