Your shopping cart is empty or products are not available any more.
0 reviews / Write a review
CP2104 USB-to-serial adapter carrier, bottom view with dimensions.
This USB-to-serial adapter is a breakout board for the Silicon Labs CP2104 USB-to-UART bridge, and it is a great solution for connecting microcontroller projects and other logic-level serial devices to a personal computer. The tiny unit measures only 0.6″ × 0.95″ including its Micro-USB connector. It offers several options for accessing the data, control, and GPIO pins on the CP2104, all of which are made available on a 0.1″ spacing.
This board uses 3.45 V signal levels by default, but the signal pins can tolerate higher voltages, allowing the adapter to be used with 5 V systems that see 3.45 V as a logic high. The green LED on the SUSPEND line indicates an active USB connection when lit.
The adapter looks like a standard virtual serial port (COM port) to the computer’s operating system, which means it can be used with any software designed to work with a serial port (even a legacy RS-232 port). The CP2104 is a full-speed USB 2.0 device and allows baud rates of up to 2 Mbps. Drivers are available from Silicon Labs for Windows XP, Windows Vista, Windows 7, Windows 8, Linux, and Mac OS X.
This product requires a USB A to Micro-B cable (not included) to connect to a computer.
For a similar adapter with a USB Mini-B connector, please see the Pololu USB-to-Serial Adapter.
Dimensions: 0.6″ × 0.95″ including connector
USB standard: USB 2.0 (full speed)
Connector: USB Micro-B
Logic voltage level: 3.45 V (5 V tolerant)
Supported baud rates: 300 bps to 2 Mbps
Supply current: 25 mA
Pin Type Function
VDD Power 3.45 V voltage regulator output
VBUS Power USB bus voltage (5 V)
GND Power Ground
RST In Device reset
TX Out Asynchronous serial data transmit (idle high)
RX In Asynchronous serial data receive
CTS In “Clear to send” control input
(often used with RTS)
RTS Out “Ready to send” control output
(often used with CTS)
DSR In "Data set ready" control input (active low)
(often used with DTR)
DTR Out "Data terminal ready" control output (active low)
(often used with DSR)
DCD In "Data carrier detect" control input (active low)
RI In "Ring indicator" control input (active low)
SUSPEND Out Driven high when in USB suspend state
SUSPEND Out Driven low when in USB suspend state
(connected to green LED)
GPIO.0 I/O User-configurable inputs or outputs
All of the adapter’s pins are available in two rows spaced 0.5″ apart along the sides of the board. This allows any pin to be accessed easily while the adapter is plugged into a solderless breadboard, as shown in the left picture below.
Alternatively, a 1×6 header can be soldered to the end of the board, as shown in the right picture below. This gives access to six signals (RTS, RX, TX, VBUS, CTS, and GND) that are commonly found on FTDI cables and other similar USB-to-serial adapters. As a result, this CP2104 adapter board can be used as a drop-in replacement for an FTDI cable in many applications, such as programming Arduino-compatible boards.
CP2104 USB-to-serial adapter carrier in a breadboard with included 0.1″ male headers installed.
CP2104 USB-to-serial adapter carrier with included 6-pin 0.1″ right-angle female header installed.
The carrier board ships with a 1×25 straight male header strip, a 1×6 right-angle male header strip, and a 1×6 right-angle female header as shown below. You can also solder wires directly to the pads for the smallest installation.
Using a different VIO
This carrier board connects the VIO pin of the CP2104 to VDD by default, setting its logic voltage level to the 3.45 V provided by the IC’s built-in voltage regulator. If you want to use a lower logic voltage, you can disconnect VIO from VDD by cutting the thin trace between the two pads of the surface-mount jumper shown to the right. You can then solder a thin wire to the exposed via labeled “VIO” and connect it to a separate voltage supply (as low as 1.8 V).
This schematic is also available as a downloadable PDF (188k pdf).
You do not need to be familiar with details of the CP2104 to use this board as a basic USB-to-serial adapter, but the CP2104 also has specialized features including four general-purpose I/O (GPIO) pins and the ability to be customized via its one-time programmable ROM. For advanced users interested in these features, we recommend careful reading of the CP2104 datasheet (224k pdf). Additional resources, including application notes referenced by the datasheet, can also be found on the CP21xx product page of the Silicon Labs website.
Solderless breadboards are commonly used for prototyping because they allow you to quickly build tem..
Breakaway header is like the duct tape of electronics. Its great for connecting things together, sol..
This convenient 1.3mm DC to 2.1mm DC adapter cable lets you plug one of our solar panels into our op..
This 12-inch (30-cm) cable has 26 AWG wires and a 3-pin female JST PH-style connector that mates wit..
Three rows in a right angle header!? Yes! These chunks of 0.1" header has yet-another-row - handy fo..
The Arduino Mini USB Adapter is a breakout board for the FT232RL chip from FTDI (drivers are include..
Bare Conductive Paint is a multipurpose electrically conductive material perfect for all of your DIY..
Just about all electronics use TTL serial for debugging, bootloading, programming, serial output, et..
These premium jumper wires are great for making quick and easy prototyping connections. The pack inc..
Pins: 1 x 40
Spacing: 0.100 in
Pin type: str..
This 3-wire harness can be used to add a toggle switch between any two devices that can be connected..
Connect this to that without soldering using these handy mini alligator clip test leads. 5" overall ..
Connect this to that without soldering using these handy mini alligator clip test leads. 15" cables ..
This servo extension cable has female JR connectors on both ends, so it can be used to make connecti..
This servo extension cable has three 22-AWG wires joining a male Futaba J connector and a female JR ..
The cable is easiest way ever to connect to your microcontroller/Raspberry Pi/WiFi router serial con..
This RF adapter cable is super handy for anyone doing RF work. Often
times, small electronics save..
This simple cable has so many uses! Plug the 9 volt battery clip onto a standard 9V battery and conn..
Specifications: 400 Tie point..
Description: This is a simple 3.5mm TRS stereo audio jack with a screw-on plastic shroud. These..
Description: If you need to knock up a quick prototype there’s nothing like having a pile of ju..
These premium jumper wires are stranded 26 AWG wires with male terminations on both ends, for u..
The jumpers in this bundles are of 3 different sizes. In this bundle there are: &nb..
Pretty Standard copper-strip board for prototyping and general circuit soldering. 30 Lines with 48 h..
These 2x3 crimp connectors can be snapped onto 6-wire ribbon cable to make your own cable assemblies..
These 2x5 crimp connectors can be snapped onto 10-wire ribbon cable to make your own cable assemblie..
Simple shrouded 6-pin connector. Good for preventing cable connection mishaps. Use for programming, ..
Simple shrouded 10-pin connector. Good for preventing cable connection mishaps. Use for programming,..
Ribbon cable is really helpful in situations where you need to make a lot of connections without a b..
The E1115 PS/2 Keyboard to ASCII Converter is a single chip solution dedicated to producing a single..
Enter your Email and you will be notified once item will be again available.
We ship to the GCC and MENA regions.
Reliable and fast shipping to your door, quality assured.
Find us on Instagram
Just type @idea_link