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YA usb ttl serial adapter

mastupristi·YA_usb_ttl_serial_adapter

YA usb ttl serial adapter PCB layout, top view — open source board by mastupristi
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About the YA usb ttl serial adapter PCB

YA usb ttl serial adapter is an open source PCB design by mastupristi, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 33.8 × 19 mm, with 24 components from 14 distinct parts.

Other key parts include the FT232RNL and TXU0202DCU. By type, the board carries 8 resistors, 6 capacitors, 4 diodes, 2 ICs, 2 connectors and 1 transistor.

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

From the project

Yet Another USB-TTL Adapter with Auto Voltage Sensing

This is a simple open hardware project for a USB-to-TTL serial adapter based on the FTDI FT232RNL chip. The main feature of this adapter is its automatic voltage level detection, supporting TTL I/O levels from 1.8V to 5V without requiring manual jumper selection.

There are many USB-to-TTL adapters available on the market, such as:

- AZDelivery FT232RL Adapter - DSD TECH SH-U09C2 Adapter

YA usb ttl serial adapter, from the project README
From the project README

Main components on the YA usb ttl serial adapter

FT232RNLTXU0202DCU

YA usb ttl serial adapter bill of materials (BOM)

24 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
FT232RNL
U1
1
TXU0202DCU
U2
1
MMBT3904
Q1
1
C132563
USB_B_Micro
J1
1
CONN_02X04_ODD_EVEN
Conn_02x04_Odd_Even
J2
4
NCD0805R1
D1, D2, D3, D4
1
GZ2012D601TF
FB1
5
100NF
100nF
C1, C3, C4, C5, C6
1
10UF
10uF
C2
1
1K5
1k5
R1
2
270
R2, R3
3
10K
10k
R4, R5, R6
1
470
R7
1
47K
47k
R8

YA usb ttl serial adapter design files

The KiCad project lives in the mastupristi/YA_usb_ttl_serial_adapter repository on GitHub; these links point at the commit this page was built from.

YA usb ttl serial adapter: common questions

How big is the YA usb ttl serial adapter PCB?

The YA usb ttl serial adapter measures 33.8 × 19 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the YA usb ttl serial adapter?

24 components, from 14 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 YA usb ttl serial adapter design files?

From the mastupristi/YA_usb_ttl_serial_adapter 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 YA usb ttl serial adapter design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which mastupristi chose for the repository.

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