www.cutedigi.com     Call Us:  303-834-7832    Email Us:  sales at cutedigi.com

Quick Find:    
Use keywords to find the product you are looking for.
.NET Micro Frameworks
3D printer
Arduino Kits
Arduino Shields
Breakout Board
Development Tools
Lighting LED
Powerline Communication
Project Case
Raspberry Pi
Security and Spy Camera
Featured more
Arduino UNO USB Board  R3
Arduino UNO USB Board R3
Specials more
LinkSprite JPEG Color Camera Serial UART Interface (TTL level)
LinkSprite JPEG Color Camera Serial UART Interface (TTL level)
 $44.00  $39.00 
Linker Kit for Raspberry Pi / pcDuino
Linker Kit for Raspberry Pi / pcDuino
 $29.00  $24.90 
WiFi  RedBack 1.0 -- Arduino  yellowjacket Compatible
WiFi RedBack 1.0 -- Arduino yellowjacket Compatible
 $75.00  $64.99 
IOIO for Android
IOIO for Android
 $44.90  $25.99 
CuHead Pro WiFi/Ethernet Shield with AirPlay/DLNA Audio
CuHead Pro WiFi/Ethernet Shield with AirPlay/DLNA Audio
 $55.90  $51.00 
ATWIN Quad-band GPRS/GSM Shield for Arduino
ATWIN Quad-band GPRS/GSM Shield for Arduino
 $49.00  $45.00 
  Top » Catalog » Arduino Shields » ARDUINO_RS232_SHILED_D30

RS232 Shield for Arduino


Stock Available: Yes

Click to Purchase at our new storefront !


RS232 Shield for Arduino




RS232 is a standard communication port for industry equipment. Unfortunately, modern computers don’t have it anymore. Arduino only has a USB port and a TTL UART interface. In order to talk to an industry equipment, we can add a RS232 port to Arduino using this handy RS232 shield.





  • Schematics
  • Does it work with Arduino Leonard? Yes. But please move the switch on Leonard to 5V. 


More Info

UPC:  610074725992




by Tom Fangrow Date Added: Friday 04 May, 2012
I bought this to read RS232 output from a piece of lab equipment. I was disappointed there were no instructions, but then realized you don't need any. It's simply the same as the USB port on the Arduino. serialRead and serialWrite go to both ports. Ok except my lab equipment did not like that and kept re-setting itself. During program debugging I had to remove and replace the shield several times because you can't upload with the shield attached to the Arduino. Other than that, the product works great. Couldn't there be a dip switch to disable the board while uploading?..

Rating: 4 of 5 Stars [4 of 5 Stars]
by Todd Fendt Date Added: Friday 02 November, 2012
I needed to use an arduino with a RS232 device and didn't want to create my own. Works great. I also bent the two pins for TX and RX out of the way and instead used two jumper wires to connect to a software port and utilize softwareserial so I can still program and debug while connected to the RS232 device. Thanks!..

Rating: 5 of 5 Stars [5 of 5 Stars]
by MSE Slacker Date Added: Friday 02 March, 2012
I'm happy to see this shield made available for the Arduino platform. With a DB-9, level-shifted RS-232 port, the Arduino can communicate with a wide variety of laboratory test equipment and industrial automation hardware. There are two free channels on the MAX232 chip on this board. For those with a steady soldering hand, a "blue wire" modification can bring out level-shifted CTS and RTS signals to pins of your choice on the headers, for use with devices requiring hardware flow control. Note: The Arduino Uno cannot be programmed via its USB interface with the RS-232 shield in place. (The logic-level Rx output from the MAX232 chip interferes.) So, you'll probably need a USB-Serial adapter for subsequent programming...

Rating: 3 of 5 Stars [3 of 5 Stars]

Extra Info

Current Reviews: 3Read Reviews
Write a review on this product!

Extra Info
This product was added to our catalog on .
Notify me of updates to RS232 Shield for Arduino
Tell someone you know about this product.

 Add to Wish List 
 $11.90  Quantity:        
Customers who bought this product also purchased
Shopping Cart more
0 items
New Articles (0)
All Articles (82)
Arduino (30)
DMX512 (1)
FPPA (3)
GPS (6)
Industry News (5)
Linux Port Tutorial TQ2440 (24)
MCU Zone (4)
Multitouch Display (2)
PCB/SMT Assembly Service (2)
Sensors (1)
Smart Home (4)
Affiliate Program
Affiliate Program FAQ
Affiliate Log In
Cards Accepted
Cards We Accept