I am working on a master slave architecture based on RS485 protocol in 9-bit mode (with backbone configuration). The master is 80c196kd and the...

I am working on a master slave architecture based on RS485 protocol in 9-bit mode (with backbone configuration). The master is 80c196kd and the slaves are all 8051 microcontrollers. The slaves are in fact sensors and actuators. Now the problem in working with 9-bit mode is that the debgging becomes tough, normaly i use MATLAB for observing the data (when in 8-bit mode). Matlab does not support...

Most of my electronics gadgets must be configured by the user. There many UI (User Interface) avaiable and each has pros and cons: - voice...

Most of my electronics gadgets must be configured by the user. There many UI (User Interface) avaiable and each has pros and cons: - voice assisted guide with a keypad - display and keypad - touch display - serial channel (RS232/RS485/USB/Ethernet) connected to a PC - ... Many time I choose to provide a simple RS232/USB port on my gadget, to keep its cost low. When the user wants to co...

A company I'm working with is developing an application the needs to connect power and data (standard 110V/60Hz and RS485 type data) on a flat...

A company I'm working with is developing an application the needs to connect power and data (standard 110V/60Hz and RS485 type data) on a flat exterior concrete pad. We have connectors that we think will do the job (IP68 with power and data) but we are looking for a connection box that can be cast in place in the concrete for the pad side of the connection. It has to be flush with the con...

I have just been presented with a little job. I need to make a converter between modbus protocol and a proprietry one. They are thinking of...

I have just been presented with a little job. I need to make a converter between modbus protocol and a proprietry one. They are thinking of using the xnut [1] unit. I would have to write the code to make this convert the proprietry protocol to modbus over RS485. Their protocol is significantly different to modbus. Xnut runs linux. The xnut library does not support modbus (I think)....

I need to develop a custom board with WiFi connectivity and a UART(RS485). The UART will be connected to a proprietary device with a...

I need to develop a custom board with WiFi connectivity and a UART(RS485). The UART will be connected to a proprietary device with a proprietary protocol, no problem on this. The board should connect to a MQTT server through WiFi. I don't know if I will choose a "transparent" WiFi module, implementing all TCP/IP stack and MQTT protocol on the host controller, or choose a "full-featur...

Hi, I wanted to replace existing RS485 communication method to Ethernet base communication on my embedded device. Requirement is 1. To...

Hi, I wanted to replace existing RS485 communication method to Ethernet base communication on my embedded device. Requirement is 1. To communicate with our own similar devices. 2. Communicate with 3rd party devices on same standard protocol. 3. Want to use same Ethernet port for TCP/IP web connection. Which are the protocols normally used for inter embedded device communication on ...

I need a very low-cost (50USD for quantity) touch panel running Android OS. I'll use only the LCD, the touch panel and a serial interface...

I need a very low-cost (50USD for quantity) touch panel running Android OS. I'll use only the LCD, the touch panel and a serial interface (RS485). A USB device port (to make a connection with a PC) and/or USB host port (for connecting USB pen drives) would be nice. The size of LCD could be from 5 to 7". I don't need SD, Ethernet, WiFi, CAN, RTC, battery, Bluetooth and other nice th...