The μUSB-PA5-II is a USB-to-Serial converter module that is simple, cost-effective, very small and easy to use. It has a mini-B type USB connector to connect to your PC and is based on the SiLabs CP2104 USB-to-Serial Bridge IC. It provides you with multi-baudrate serial data and access to flow-control signals in a convenient 10-pin 0.1" pitch Dual-In-Line package (though-hole pads).
The picture shows the older version with an FTDI chip.
Its main five-pin 0.1" pitch female header is designed to connect to most 4D Systems modules. It can be used for programming PmmC firmware files and 4DGL user code downloads into the GOLDELOX, PICASO and DIABLO processors embedded in those display modules we carry from 4D Systems. Note: This converter physically can not plug into old uLCD-28PT or uLCD-32PT modules (only the new PTU models), or the uOLED-32028-P1T. Use the 4D Programming Cable if you have any of those older displays.
With the DIP pinout as well (if you install pins), microUSB makes an easy USB-Serial interface, so you can create USB-to-RS232 converters, USB-to-RS422/RS485 converters, upgrade legacy RS232 devices, make PDA and cellphone USB interface cables, barcode readers, POS terminals, etc.
Whatever the application, make sure the TX and RX lines from the μUSB are crossed over to the attached peripheral, i.e., the TX from the μUSB connects to the RX of the target and the RX from the μUSB connects to the TX of the target. Note: The TX and RX signal levels are between 0V and 3.3V, but are 5V tolerant.
USB-to-Serial Bridge Features
- Based on the CP2104 USB-to-Serial Bridge IC from Silicon Labs
- Mini-B USB connector
- USB 2.0 compliant Full Speed 12Mbps maximum; Suspend supported
- Hardware or Xon/Xoff handshaking supported; 300bps to 2Mbps
- UART supports 5, 6, 7, or 8 data bits; 1, 1.5 or 2 stop bits; odd, even, mark, space, or no parity
- Power-on reset circuit
- Virtual COM port drivers allow operation with existing COM port PC applications
- Supports Windows 2000 and above, Mac OSX v4 and above, Linux 2.6 kernel and above, and Android 4.2
- USB powered
- Temperature range: −40 to +85 degrees C
- Additional flow control and features available via through-hole pads
- Dimensions: 33.7 × 17.3 mm approx., including female header
- Traffic/Operation LED indicates board status
Determining COM Port Used in Windows
- Go to Control Panel and double-click on the System icon to open the System Properties window.
- Click on the Hardware tab, then the Device Manager button.
- Go down the list and expand the Ports (COM & LPT) devices.
- There you will see the COM port that has been allocated for the µUSB-PA5-II.
- Take note of the COM port number (e.g. COM4) as you will need this when configuring the COM port for applications that need to communicate with the µUSB-PA5-II, such as the 4D-Workshop IDE.
USB-to-Serial Bridge Resources
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