Microsoft Excel 2017 for Mac Full Download a cleaned up version of its predecessors. Its significantly neater interface and appearance make it relatively. The Arduino IDE has a feature that can be a great help in debugging sketches or controlling Arduino from your computers keyboard. The Serial Monitor is a. I have to work with a device that uses RS485 protocol to talk to a PC. Install Net Snmp Perl Module there. So there are two things I need to get done 1. Use an RS485 connector to connect the device to. Learning about serial communication concept and history. Simple to understand examples and experiment for UART, RS232, Ethernet, Wifi, USB, SPI, I2C. Hundreds of reviews of software and hardware tools used by embedded engineers. Battle of the RS232 serial port terminals Docklight vs. Bray Performance test Duration 1359. ElectronicsBase. com 1,032 views. C399' alt='Docklight 2 0 Serial' title='Docklight 2 0 Serial' />Thread C with RS4. Serial Port Communication. Docklight 2 0 Serial' title='Docklight 2 0 Serial' />No more missed important software updates UpdateStar 11 lets you stay up to date and secure with the software on your computer. A better alternative to Hyperterminal I see many posts with people using Hyperterminal when trying to debug serial communications with a PIC. I found out a long time. I mentioned in my previous post. I mentioned 2 wire and 4 wire RS4. RS4. 22. RS4. 22 and RS4. If you look at an RS2. Transmit. Data TX and another for Receive. Data RX. The signal levels can be between 1. So, the minimum number of wires that RS2. They are TX, RX and GNDThe problem with RS2. RS4. 22 does not use a GND at all. The TX is actually 2 wires. TX and TX and the RX is also 2 wires RX and RX. RS4. 22 also allows full hardware flow control in which case theres also RTS and RTS and CTS and CTS and as you can imagine the whole thing can require quite a few wire although as a minimum to just carry the RX and TX youd need 4 wires. The signal levels are between 3 and 3 volts. These two wires are twisted around each other twisted pair so that any interference affects both wires equally so if there was a sudden voltage swing theyd both spike up or down together and the difference between the two wires differential signal remains constant and therefore reliable. Consequentially RS4. Much further than RS2. Using those 4 wires. TX TX RX and RX you can connect more than one device to the same wires in a kind of network. Any message sent by one device would be received by all other devices. Picture the message display system in an airport where they all simply display the same data which is being broadcast from a master device. Obviously if any of those slave devices needed to send a message back to the master then the master wouldnt know which device was talking also the master wouldnt have any way to send a message to just one specific display. So, if you added an ID of some description to the start of each message you can say which device the message is for. As soon as you do this you have a protocol and suddenly were talking about RS4. The protocol would require a packet of data that contains a device ID. The master device sends a poll command to a specific device. All devices on the network will hear that poll command allowing you to broadcast something such as updating all the displays in an airport with the lastest cancellation information. But by using the ID only the relevant device will reply and the master and slave can talk to each other while other devices ignore the conversation. So yes, you could connect more than one device to the wire as long as the protocol specifies a device ID. If the protocol does not contain a device ID then youd have no way of talking directly to one device or know which device was talking to you. RS2. 32 is quite strict about which pins are used for the various signals. But there is no such standard for RS4. RS4. 85 Lots of hardware just uses screw terminals. Some will use the same kind of connection as an RS2. So far Ive described 4 wire RS4. There is also a thing called 2 wire RS4. This is where TX and RX share the same wire. As does TX and RX so you only need two wires. The master enables its transmitter, sends the poll command and immediately switches off its transmitter allowing the slave device to reply down the same wire. This quick power onoff is what we refer to as Turn Round Time. Its not complicated but for the uninitiated the turn round timing can be quite difficult to do the first time you make your own 2 wire 4. Using 4 wire 4. 85 is much easier. If your computer has 4 wire 4. I wont go there unless you need to. Do you Unfortunately I cant give you much help regarding your specific application because, as I said, RS4. RS2. 32 but I hope ive given you something to work with.