Questions tagged [serialport]
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10 questions
0 votes
1 answer
73 views
Omnidirectional Barcode Scanner Not Sending Data to Arduino Mega Pro (Embed) via MAX232 – Works in Tera Term
I am trying to connect an old omnidirectional barcode scanner to an Arduino Mega 2560 Pro (Embed) to retrieve scanned barcodes. The scanner communicates via RS232 (DB9 serial), so I am using a MAX232 ...
- 103
0 votes
3 answers
346 views
What is Multiprocessor Communication in 8051, and how to use it?
In 8051, one of the bit, SM2 or the D5 or SCON.5, is about "Used for Multiprocessor Communication." I am not clear about it. I watched quite many tutorials or explanations about 8051 on ...
- 291
0 votes
0 answers
58 views
Is it possible the PC can connect these two microcontrollers' serial ports?
As shown in the drawing below, MCU1 is connected to the PC via port COM7 and MCU2 is connected to the PC via port COM6: Is it possible that MCU1 and MCU2 can communicate without writing a special ...
- 4,727
0 votes
1 answer
156 views
A question about serial communication between two PC [closed]
I have PC1 and PC2. PC2 runs the PC2-software. And I need the remote PC1 to send some bytes to PC2 to control the PC2-software via a USB cable. I tried to connect two PCs via a USB cable but I noticed ...
- 2,704
13 votes
4 answers
4k views
How were standard serial port baud rates chosen?
How were standard serial port baud rates chosen? 1200, 9600, 115200, aren't the numbers we'd expect (powers of 2 or 10), but don't seem random either. Wikipedia states Many of these standard modem ...
- 1,379
0 votes
1 answer
1k views
How to set up RS232 UART in Proteus?
I am having difficulties sending the correct message to the hyper terminal from ATmega32 micro controller. For some reason, the MAX232 chip is giving undesirable voltage levels. I want it to give ±15 ...
- 197
0 votes
1 answer
162 views
Unable to clear faults on Monoblock via RS232 command: Need help decoding serial messages with Arduino
I recently purchased an XRB160PN192 Monoblock with a known fault of high voltage (HV) for a low price to use in my graduation project. After reading the user manual, I found that the HV error, along ...
- 21
1 vote
0 answers
69 views
Does anyone know the serial communication protocol for infopia's finetest autocoding premium?
I obtained a finetest auto-coding premium glucometer and I would like to use it to transmit measured data over the Internet to a remote destination as a project. To do that I am connecting to its ...
- 11
0 votes
1 answer
70 views
AT COMMAND's GC433-TC016 No Response
My question consurns AT Commands using a Serial Port Wireless Device. ( SILICONRA - microchip ) GC433-TC016. I can transmit and receive Serial Port transmissions to Remote units. ( GC433-TC016) I ...
- 586
0 votes
1 answer
106 views
LAN9514 Remote-RS485 [closed]
i am looking at a way of providing "Remote-RS485" to a common PC-system. Currently my plan is: Connect one of these LAN9514 via Ethernet to the Host -> USB/UART converter per downstream-&...
- 3,757