Electronics-Lab.com Blog

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 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]

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]

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]

Scanalogic-2 PRO is a 4 channel Logic Analyzer and Digital Signal Generator priced at 59€. At this cost it’s easy for a hobbyist to get one and make digital circuits debugging a breeze. It’s designed to capture, decode and analyze serial protocols like SPI, I2C, UART, 1-WIRE and CAN in a few clicks. Data is captured on PC using the free and efficient ScanaStudio software.

Features:

Dilshan developed a precision event logger based on the PIC16F73 and some binary ripple counters from the CMOS logic family. The project uses a 2Mhz reference clock, and is capable of measuring events from 0.02 to 6.8 seconds long. [via]

The counter gets activate and deactivate in positive edge of the input signal. Thanks to the wider operating voltage of the CMOS ICs this counter may be able to handle +5V to +15V of input signal. At the end of the counter session system release total tick count to the RS232 interface and it can receive through any serial terminal software. When applying the inputs it is recommended to maintain minimum of 100ms of interval between each session.

Precision event logger measures 0.02 to 6.8 seconds - [Link]

Open source application for charting data sent via RS-232 port in real time.

SerialChart – Analyse and chart serial data from RS-232 COM ports - [Link]

electronicsblog.net writes:

Today I will show how to make digital bridge between Arduino and PC: control analog – digital converter and send measured data to PC. Windows application will be created using Visual C++ 2008 Express.

Voltmeter demo software is very simple, and here is a lot room for improvement, but I just wanted to show basics how to control com port and execute data exchange between PC and Arduino.

Digital voltmeter – Arduino and PC (Visual C++) – [Link]

Johan von Konow writes:

A small FT232 USB to serial adapter built to fit directly in the USB port

Features:

• Integrated USB header
• Standard FTDI cable pinout
• Single sided PCB (easy to manufacture)
• Rx,Tx led’s
• Miniature size

Miniature USB to serial PCB - [Link]

Chris @ PyroElectro.com writes:

A few months ago I explored building a single microcontroller RS232 interface end point using a PIC. It worked well, especially since the PIC already had a hardware shift register module that was RS232 compatible. This brought up the question in my mind of what it takes to build your own hardware module for an RS232 interface.

In this article we explore the flexibilty and capability of FPGAs and specifically CPLDs for creating an RS232 serial interface. Our main goal will be to send ASCII codes from a PC to our CPLD Dev Board and display them on a 7 segment LED for verification.

FPGA RS232 Interface - [Link]