All Questions
295
questions
0
votes
2
answers
50
views
CH32V003 MCU max USART baud rate
I will work with the CH32V003A4M6 microcontroller and must configure its USART for serial communication.
My application needs to go up to 460800 baud rate.
Does someone know if this is possible, or ...
0
votes
1
answer
54
views
STLink v3 serial doesn't work
I'm trying without any success to get STLINK-V3MINIE serial to work. It shows up as a serial port on the laptop:
...
- 273
0
votes
2
answers
62
views
Do FT232 come pre-programmed out of the package?
I'm working on a board which requires USB serial communication. For this I want to use an FT232RNL, however I'd like to know if I need to program it before I install it on the board. Also, do I need ...
- 31
0
votes
2
answers
120
views
Is it normal to get garbage output through UART when resetting the microcontroller?
I have written functioning code for Serial Communication through UART, and when stepping through the code it transmits characters just fine. I have done this using microlib, so I can use printf (I ...
- 1
0
votes
0
answers
70
views
Decoding unknown serial data from treadmill console board
I have been working on a treadmill project whereby my aim is to manually control the treadmill with an Srduino without using the remote.
Info about the treadmill - The treadmill is just a normal ...
0
votes
0
answers
38
views
Fingerprint sensor module communication (FPM383 R503)
I'm working on a fingerprint sensor that is known as FPM383. It is much like the well known R503 sensor. Their datasheet and serial communication manual are almost identical.
I was trying to control ...
- 291
0
votes
2
answers
105
views
Why does RS-232 Communication fail between these 3 ESP32's?
What's the Goal?
Trying to get two esp32's to communicate over their UART lines using RS-232.
My initial inspiration and idea for the connections was based on
https://esp32io.com/tutorials/esp32-rs232
...
- 117
0
votes
0
answers
31
views
Gibberish data with custom Atmega 2560 UARTs
So I have an issue with the UART configuration of my customized uC based on the ATmega2560.
To establish serial communication, I'm using the FT232RL chip and the Arduino IDE.
I don't have any issues ...
- 3
4
votes
3
answers
591
views
Custom Arduino MEGA crashes ONLY on a specific command when plugging UART-USB converter before main power. Phantom power leaking through UARTs pins
Disclaimer
Based on multiple attempts to find the cause of the problem, I have determined that I might be facing a hardware issue rather than a programmatic failure, hence why I am posting this here ...
- 863
0
votes
3
answers
44
views
Use digital sensor with USB to serial TTL converter?
I have a sensor (HC2A-S3A), which provides analog and digital output signals. The digital interface is UART (19200 baud, protocol RoASCII). Can I use a USB to Serial TTL Converter (chipset: FTDI ...
- 101
0
votes
2
answers
221
views
STM32 Help receiving serial data sent from python's pyserial
I need some help communicating between python's pyserial and an STM32f030R8 microcontroller. This is for a 2 DOF robot which has a python base GUI. The GUI will send, via serial communication, the ...
- 23
0
votes
1
answer
49
views
Reducing EMI caused by unterminated serial TX line
I have a PCB with a serial TX UART used for programming & logs.
Most of the time nothing is connected & the ~50mm TX trace is unconnected - basically an antenna.
Are there any best practices ...
- 113
0
votes
1
answer
353
views
ESP32-CAM flash via UART
I'm looking for help to upload from Arduino IDE into an ESP32-CAM module, without an FTDI programmer or shield.
Context
I've got a couple of ESP32-CAM modules with an associated ESP32-CAM-MB shield ...
- 3
0
votes
2
answers
110
views
Connect to embedded device through serial, possible and how?
I have a device with embedded linux. I need to access the CLI of this device, and found a RS232 port in the motherboard. Can I access CLI with putty, using this RS232 port?
- 11
1
vote
1
answer
83
views
Microchip Studio, porting attiny85 usi uart code to attiny84 not working
Thanks in advance for anyone who can help me with this. So I got a copy of some code that works pretty well just using the USI as a UART for the attiny85. At the default 8 MHz internal oscillator, ...
- 87