Tag Archives: RS232

RS232 to RS485 Module

C020

This project provides a simple and easy solution to connect your computer to a RS485 Network in either Receiver or Transmitter mode.

This circuit has been designed around popular MAX232 and MAX485 interface IC.

RS232 to RS485 Module – [Link]

RS232 – MAX232 Interface Module

RS232_Module_PIC

This project provides you a simple and easy solution to connect / convert your Microcontroller input/output to be connected to the serial port of the Computer.

This projects build around popular MAX232 level shifter IC to do the Level Shifting (Voltage) between 5 V and 12 V DC.

An Onboard 9 pin female “D” connects this PCB to the Serial Port cable (not supplied with the Kit). Connector J1 connects to the Host for power supply and serial In/Out signals.

A – Provides data from the Computer to the Host (RXD)
B – Provides data to be sent to the Computer from the Host (TXD)

RS232 – MAX232 Interface Module – [Link]

Bluetooth OBD-II Adapter

obd

Nabil Tewolde build a bluetooth OBD-II adapter. He writes:

The board is basically the reference schematic for the STN1110, which converts many OBD-II physical layers into RS232. The bottom of the board has a bluetooth module from Deal Extreme. The plan is to connect a smartphone or tablet to the device and log data.

Bluetooth OBD-II Adapter – [Link]

Customer solution: Trouble-free RS232, RS422, RS485 to USB conversion

obr1320_1

Integrated circuit FT232R is becoming legendary and we bring you another example of FTDI USB chips usage.  

In praxis we often face a requirement to communicate with devices, which have serial ports RS232, RS422 and RS485. As many devices – mainly notebooks, already usually don´t have these ports, it is necessary to use a converter to convert serial port to USB.

Company ComErgon, s.r.o. is long-term dedicated to development and production of such converters. ComErgon has in its offer models for  RS232, RS422 a RS485 interfaces. USB to RS422 and RS485 converters are produced with a 1kV galvanic isolation, as lines on the RS422 and RS485 side can be lead  even on long distances and an eventual overvoltage could be able to damage end devices. Version RS232-USB is available with galvanic isolation but also without isolation.

More detailed information and technical specification of these converters can be found at website of company ComErgon.
Company ComErgon focuses on development and production of converters for RS232, RS422, RS485, RS422/RS485 repeaters, serial to Ethernet interface modules, GPRS, Fiber Optic, 433MHz, current loop and other.

Customer solution: Trouble-free  RS232, RS422, RS485 to USB conversion – [Link]

WizFi630 – the immediately available WiFi

obr1159_1

Compact embedded module WizFi630 enables to connect any serial RS232 device to a TCP/IP network. 

However it´s not all. By supporting  3 Ethernet ports, it offers a wide variability to connect another devices to a Wi-Fi network, in various operation modes.

Novelty from company Wiznet  WizFi630 module provides, besides the RS232/ Wi-Fi interface, even many other functions, which place it to a category of routers. Via 2 UART and 3 Ethernet ports it is possible connect several devices in various modes of operation: AP (Access point), Client , AP client and Gateway. These modes are best illustrated in attached picturs. For a development support, we offer you a novelty –  WizFi630EVB evaluation board with complete accessories.

WizFi630 – the immediately available WiFi – [Link]

New 7" eDIPTFT70 display – when the size matters

New intelligent display eDIPTFT70 from Electronic Assembly provides all what its smaller relatives and something in addition – the size.

With the 7” size and an 800 x 480 pixels resolution, it can display a relatively considerable amount of information. Similarly like other member of family eDIP (eDIPTFT32 a eDIPTFT43), even eDIPTFT70 eliminates the need of demanding and time-consuming programming at pixels level.

All the control of the display is done on commands level, thus to display text, graphics and many other symbols is exceptionally easy and simple. Control by commands substantially accelerates development and shortens the time to market. At an application development it is possible to use predefined functions, symbols and geometric functions, bargraphs, frames, buttons and many other. In general eDIPTFT70 offers almost the same functions like other eDIPTFT family members, including almost immediate start within a few 1/10 of second.

Single +5V supply, analogue touch panel with a variable raster and software-dimmable backlight brightness contribute to the versatility of usage. In many of applications also 80 various short jingles for audio feedback can be useful. Even eDIPTFT70 contains 3 communication interfaces – RS232, I2C and SPI, that´s why it can be connected to virtually any device. Further information will provide you the eDIPTFT70 datasheet.

New 7″ eDIPTFT70 display – when the size matters – [Link]

WizFi630 – WiFi on all ways, including AP, Client and Gateway

Compact embedded module WizFi630 enables to connect any serial RS232 device to a TCP/IP network. However it´s not all. By supporting 3 Ethernet ports, it offers a wide variability to connect another devices to a Wi-Fi network, in various operation modes.

Novelty from company Wiznet – WizFi630 module provides, besides the RS232/ Wi-Fi interface, even many other functions, which place it to a category of routers. Via 2 UART and 3 Ethernet ports it is possible connect several devices in various modes of operation: AP (Access point), Client , AP client and Gateway. These modes are best illustrated in attached picturs. For a development support, we offer you a novelty – WizFi630EVB evaluation board with complete accessories for a promo price in a limited amount – with almost 50% discount.

  • high-performance Wi-Fi module with the RS232 interface
  • 90 Mbps effective rate
  • IEEE 802.11 b/g/n
  • 2 UART and 3 Ethernet ports
  • usable as a Wi-Fi router, AP, AP-client, Client, AD-HOC
  • 64/128 bit WPA/WPA2-PSK TKIP, AES
  • easy configuration via a built-in web server, serial commands or a Windows utility
  • CE, FCC, KCC certificates

WizFi630 – WiFi on all ways, including AP, Client and Gateway – [Link]

Stronglink modules will provide you a highly secure RFID

Mifare and DESfire RFID modules from company Stronglink enable to use advanced RFID technologies while maintaining a very affordable price.

MIFARE ultralight, MIFARE 1k, MIFARE 4k and MIFARE DESfire are known technologies of RFID enabling to use various application, store various data and other functions. From this reason, they´re largely used in admission systems, loyalty programs, goods tracking and many other segments. From the security point of view, mainly the DESfire system with the DES/AES encryption excels. New 13,56 MHz Stronglink modules in our portfolio – SL025M, SL030, SL031, SL032, SL040 and SL040A enable to use these technologies and they are relatively easily applicable because of more reasons. Firstly, they are available in more versions with UART, I2C, RS232 as well as USB interface, they are certified (CE and RoHS) and the producer provides an above-standard development support.

Usage of modules is also simplified by their low power consumption and a relatively very low-profile construction with the height of only few mm. An important factor – the price, also says in favor of Stronglink modules, because they´re available for relatively very competitive prices. For the development support, there are also available source code examples for various microcontroller families. Further information will provide you the SL025M, SL030, SL031, SL032, SL040 and SL040A user manuals and AN100721, AN101203 and AN110221 application notes.

Stronglink modules will provide you a highly secure RFID – [Link]