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https://github.com/jiegec/HT42B534USB2UART
A simple USB to UART board designed with KiCad.
https://github.com/jiegec/HT42B534USB2UART
kicad open-source-hardware usb-uart
Last synced: 3 months ago
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A simple USB to UART board designed with KiCad.
- Host: GitHub
- URL: https://github.com/jiegec/HT42B534USB2UART
- Owner: jiegec
- License: other
- Created: 2020-12-28T03:54:43.000Z (about 4 years ago)
- Default Branch: master
- Last Pushed: 2023-05-04T06:29:06.000Z (over 1 year ago)
- Last Synced: 2024-10-26T22:48:49.880Z (3 months ago)
- Topics: kicad, open-source-hardware, usb-uart
- Homepage:
- Size: 328 KB
- Stars: 14
- Watchers: 3
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# HT42B534 USB 2 UART Board
A simple USB to UART board. Designed with KiCad. Manufactured and tested.
## How to use
1. Plug USB to your PC
2. Wire VIO to either V33O(3.3V) or VDD(5V)
3. Connect TX, RX & GND (optionally VIO) to other devices
The voltage of RX/TX should match VIO.
## Bill of Materials
```csv
Reference, Value, Footprint, Datasheet, Product
"U1","HT42B534_8SOP","Package_SO:SOP-8_3.9x4.9mm_P1.27mm","https://www.holtek.com/documents/10179/116711/HT42B534-xv110.pdf","https://item.szlcsc.com/504007.html"
"C1","0.1uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"J1","USB_A","Connector_USB:USB_A_CNCTech_1001-011-01101_Horizontal","~","https://item.szlcsc.com/98530.html"
"R2","33","Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder","~"
"R1","33","Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder","~"
"C6","47pF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C7","47pF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C3","1uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C2","0.1uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C4","10uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C5","0.1uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"R3","330","Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder","~"
"D1","LED","Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolder","~"
"J3","Conn_01x03","Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical","~"
"J2","Conn_01x04","Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal","~"
```
## USB Device Info
`lsusb` output:
```shell
$ lsusb
Bus 000 Device 001: ID 04d9:b534 Holtek Semiconductor, Inc. USB TO UART BRIDGE Serial: 0000
```
System Information:
```
USB TO UART BRIDGE:
Product ID: 0xb534
Vendor ID: 0x04d9 (Holtek Semiconductor, Inc.)
Version: 2.10
Serial Number: 0000
Speed: Up to 12 Mb/s
Manufacturer: HOLTEK
Location ID: 0x00142000 / 12
Current Available (mA): 500
Current Required (mA): 100
Extra Operating Current (mA): 0
```
## License
Copyright 2020-2021 Jiajie Chen
SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file except in compliance with the License, or, at your option, the Apache License version 2.0. You may obtain a copy of the License at
https://solderpad.org/licenses/SHL-2.1/
Unless required by applicable law or agreed to in writing, any work distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.