CP2102 USB UART Board (mini)
Waveshare · CP2102 USB UART Board (mini)
CP2102 USB UART Board (mini)CP2102 USB to UART Module, USB mini connector
Pinout
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VCC | 1 | power | target/reference supply | 3.3V/5V |
| GND | 2 | ground | ground | |
| TXD | 3 | uart tx | UART transmit | |
| RXD | 4 | uart rx | UART receive | |
| RTS | 5 | uart control | UART ready-to-send if broken out | |
| CTS | 6 | uart control | UART clear-to-send if broken out |
USB and serial
8 other optionsSeparate passive USB leads, connector adapters, breakout boards, USB-UART bridges and USB-C development boards before treating one as a replacement for another.
Raspberry Pi Micro USB to USB-C Adapter - Black visual previewRaspberry Pi Micro USB to USB-C Adapter - Black
Passive Micro USB to USB-C adapter intended to let an older Micro-B power supply feed a Raspberry Pi 4 USB-C input. Not a data cable or serial bridge.
$1.75
SparkFun Qwiic Pro Micro - USB-C visual previewSparkFun Qwiic Pro Micro - USB-C
ATmega32U4 Pro Micro development board with USB-C, Qwiic connector and castellated pads. A board, not a cable or adapter.
$23.95
SparkFun USB Micro-B Plug Breakout visual previewSparkFun USB Micro-B Plug Breakout
USB Micro-B plug breakout for access to connector pins. It does not convert USB to UART by itself.
$5.75
USB cable - USB A to Micro-B visual previewUSB cable - USB A to Micro-B
USB A to Micro-B cable listed for USB 1.1 or 2.0 connections to boards such as Metro, Feather, Raspberry Pi or other microcontroller/dev boards.
$2.95
Micro USB Cable visual previewMicro USB Cable
Micro USB 2.0 to USB-A cable listed for data sync and file transfer as well as connecting devices to computers.
$2.90
Type-C&Micro 2-in-1 USB Cable visual previewType-C&Micro 2-in-1 USB Cable
One-metre 2-in-1 cable with Type-C and Micro USB interfaces, listed with data-transmission support. Check the exact connector end you need.
$3.50
FT232 USB UART Board (mini), USB To TTL (UART) Communication Module visual previewFT232 USB UART Board (mini), USB To TTL (UART) Communication Module
FT232 USB-UART mini communication module. Same broad serial-bridge role as CP2102 boards, but exact chip, driver and pinout still matter.
$4.99
SparkFun FT231X Breakout Kit visual previewSparkFun FT231X Breakout Kit
$17.50
Explore other component groups
SparkFun Qwiic Pro Micro BoogieBoard visual preview
9V to Barrel Jack Adapter visual preview
SparkFun 16x2 SerLCD - RGB Backlight (Qwiic) visual preview
MicroUSB Plug to 5.5/2.1mm DC Barrel Jack Adapter | Kiwi Electronics visual previewConnectors
Sort passive connector adapters from Qwiic boards, LCD modules and microSD card adapters before assuming anything with the right plug will substitute safely.
Connectors & cables · Connectors · 6 parts
RGB backlight positive LCD 16x2 visual previewSparkFun 16x2 SerLCD - RGB Backlight (Qwiic) visual preview
I2C 20x4 Arduino LCD Display Module visual preview
Gravity: I2C 16x2 Arduino LCD with RGB Backlight Display V2.0 visual previewDisplays
Character LCDs, SPI TFTs, e-paper modules and larger capacitive-touch TFT panels solve different display jobs. Treat display class, interface, controller, resolution, touch, refresh behaviour, storage, voltage and mounting as separate swap checks.
Displays · TFT & LCD displays · 25 parts
MQ-2 Gas Sensor visual preview
MQ-3 Gas Sensor visual preview
MQ-135 Gas Sensor visual preview
Grove - Air quality sensor visual previewAir quality
Choose between MQ gas sensors, VOC/eCO2 indoor-air sensors, true CO2 modules and particulate sensors without treating every air-quality breakout as the same detector.
Sensors · Gas & air-quality sensors · 28 parts
Adafruit 4-channel I2C-safe Bi-directional Logic Level Converter visual preview
8-channel Bi-directional Logic Level Converter visual preview
74LVC245 - Breadboard Friendly 8-bit Logic Level Shifter visual preview
74AHCT125 - Quad Level-Shifter (3V to 5V) visual previewLevel shifters
Pick level shifters by bus behavior: I2C/open-drain, auto-direction push-pull, direction-controlled buffers, or 3 V to 5 V logic. They are not universal adapters.
Components · Logic Level Converters · 21 parts