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Convertor

Chockalingam-M·PCB-Designing·USB-to-UART Convertor/Convertor.kicad_pcb

Convertor PCB layout, top view — open source board by Chockalingam-M

About the Convertor PCB

Convertor is an open source PCB design by Chockalingam-M, published on GitHub. It is a 2-layer board measuring 37.9 × 14.8 mm, with 27 components from 15 distinct parts.

Other key parts include the CH340K and AP2112K-3.3. By type, the board carries 8 resistors, 7 diodes, 6 capacitors, 2 ICs, 2 transistors and 2 connectors.

It belongs with the usb & debug tools designs in this gallery.

From the project

Overview This project is a USB to UART bridge designed using the CH340K USB to Serial chip. It allows for easy communication between a computer and a microcontroller through a Type-C USB connector. Ideal for programming or debugging microcontrollers like ESP32, STM32, etc.

Overview This project is a USB to UART bridge designed using the CH340K USB to Serial chip. It allows for easy communication between a computer and a microcontroller through a Type-C USB connector. Ideal for programming or debugging microcontrollers like ESP32, STM32, etc.

This USB to UART PCB was designed by carefully following Ampnics’ video and analyzing each functional block. While the current routing can be optimized further, The design serves its purpose effectively. Future revisions will focus on refining the layout, improving signal integrity, and enhancing grounding practices.

Main components on the Convertor

CH340KAP2112K-3.3

Convertor bill of materials (BOM)

27 components, 15 distinct parts.

QtyPartRefs
1
CH340K
U1
1
AP2112K-3.3
U2
2
SS8050
Q1, Q2
1
USB_C_Receptacle_USB2.0_16P
J1
1
Conn_02x04_Top_Bottom
J2
3
LESD5D5.0CT1G
D1, D2, D5
3
LED
D3, D6, D7
1
D_Schottky
D4
2
100n
C1, C2
3
10u
C3, C4, C5
1
0.1u
C6
2
5.1k
R1, R2
3
220
R3, R4, R5
2
10k
R6, R7
1
100k
R8

Convertor design files

The KiCad project lives in the Chockalingam-M/PCB-Designing repository on GitHub; these links point at the commit this page was built from.

Convertor: common questions

How big is the Convertor PCB?

The Convertor measures 37.9 × 14.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Convertor?

27 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Convertor design files?

From the Chockalingam-M/PCB-Designing repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Convertor design in my own project?

The repository has no license, so all rights stay with Chockalingam-M. Use it as a reference, and ask the author before reusing the design.

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