serial communications

  1. M

    Trouble Receiving RS485 Data on EK-TM4C1294: MAX485 Communication Issue

    Hi, I am trying to read the RS485 Absolute encoder from EK-TM4C129. I am using the MAX485 module to convert RS485 to ttl, which is half duplex, where DE is Active high, and RE is active low. I have written the code to enable the Transmitter and receiver, where needed. we must transmit the data...
  2. cyberpks

    Longest Wired communication possible between devices in Ring topology

    Hi, I come from a Software background so my knowledge of Network communication is limited. I have been asked by someone to help create a wired network of devices connected in a ring topology. The devices connected will be addressable switching devices (relay switches) that will be used to...
  3. I

    Siglent SDL 1030X DC Electronic Load Serial Programming Tutorials and References

    Greetings, As the title implies, I was wondering if anyone has any good references or tutorials for doing more advanced operations with the SDL DC Electronic Load Device. I've been using the EasySDL program for some simpler functions, like setting a CC for time values on some power supplies...
  4. G

    SIM7600, ESP32 WROVER-E,LILYGO TTGO,ESP IDF, UART - SIM7600 JUST ECHOING WHAT I SENT IT

    I decided I would try my hand at programming an ESP32 using CLion instead of the Arduino IDE, so this project is running in the ESP IDF (toolchain?) and C language. I couldn't find the file for setting the settings, so all pins and settings are default - it would fill out the whole post if I...
  5. -live wire-

    Help talking to uart bus servos in 6 axis robotic arm

    So I am designing and building a 6 axis robotic arm and I really need help finding the right library and communication method to talk to the bus servos I have installed. This is the product page and this is the google drive with the documentation that the manufacturer provided. I also put an...
  6. D

    5v ALDL 8192 Baud to esp32

    I've been working on a diagnostics program for my old diesel, I need the TX/RX pins of my esp32 to connect to the 1 wire ALDL port. I believe I've found a suitable way using the following circuit Im aware this does not include level shifting from 5v to 3v3 which I believe I just need a suitable...
  7. -live wire-

    Please help with Serial Bus Servos!

    Hi everyone, I'm confused how to connect and control these motors https://www.hiwonder.hk/products/hiwonder-lx-225-serial-bus-servo-25kg-high-torque-data-feedback Where do I find the pinout and where can I find some sample arduino code for controlling them? I think it said something about...
  8. Bruno Malbusca

    ESP-WROOM-02 is not responding to AT commands as expected

    I using the ESP-WROOM-02 (esp8266 core) as WIFI module and the samd21g18 as main processing unit. To test, I´m using the ESP-WROOM-02 DEV board kitc and an Arduino nano IOT which has also a samd21g18 MCU. I flashed the ESP-WROOM-02 via the ESP flash download tool with the [AT Firmware...
  9. Prince1819

    Problems in the communication between the Adafruit Feather (nRF52 Bluefruit LE - nRF52832) and the ESP8266-01

    Hi, My team and I were trying to connect an Adafruit Feather (nRF52 Bluefruit LE - nRF52832) to an ESP8266-01 through serial connection. The process is the following: 1. A bunch of sensors send data to the Adafruit Feather. 2. The Feather sends all the data via serial communication to the...
  10. Z

    How to interface CMOS image sensors with 32-bit Microcontrollers?

    I've been learning to program 32-bit ARM cortex-M controllers with an STM32 Nucleo (L476rg Nucleo). I've been playing with interfacing and controlling stepper motors so far. My next step is to move on to machine/computer vision and incorporate image sensing however upon some searching (hopefully...
  11. T

    why in this article baud rate is considered as bit period or bit rate?

    I have read this article where I want to save a small question that made questionned my understanding: 1-first question: in this article baude rate/bit period, how can he takes the bit period as the baud rate. in my understanding, bit rate=(1/bit period) = baude rate* number of bits in 1 baud...
  12. M

    Connecting two ethernet MACs without PHYs

    Hi, I am designing a board that utilizes an NXP LS1046a processor and multiple Kintex Ultrascale FPGAs. The plan is to connect the processors up to the three FPGAs via the 1Gbe links. Since they are all on the same board, the plan was to try and connect them up without using any PHY devices...
  13. ajitnayak

    RS485 communication issue

    I have Setup like this for my application. I have Transformer which gives out 12V 1A & 5V 500mA output.I have used isolated ADM2483 design where power galvanized isolated. Primary side 5v &gnd taken from 7805 regulator where 12v input comes from transformer. same ground used by MCU/ADM2483 side...
  14. ajitnayak

    RS485 Communication issue,

    Dear all I have used PIC18F45k40 device for RS485 communication. I have 2 ckts one is isolated and another non isolated RS485 design. I have schematic & placement for reference. I have connected multiple slave device independently isolated and non isolated product , its working well. There is...
  15. A

    Dying for a 1 wire switch IC similar to Maxim DS2413

    Well , I was looking for a slave addressable ic for 1 wire protocol which can control a single GPIO. The RS2413 is the most right IC I could find suiting my needs (however I need only 1 gpio). But in my country, I'm having difficulty finding this IC, also, if there is a little cost effective...
  16. SaMirakle

    Need Help Decoding Automotive CAN Bus Extended Frame Bits

    Hi everyone, I don't know why but I'm having a tough time decoding CAN Bus data frames, even after looking at many sources showing bit field diagrams of how the data is supposed to be structured. Background on project/goal My main goal is to connect directly to an electronic turbo actuator...
  17. M

    ESP32 SerialBT sending data rate is not stable

    Hi all, I'm using ESP32 model: ESP8266 with a built in BT module. I'm trying to open a BT connection between the board and an phone app with sending data rate of ~1-3kHz. I'm using Aruino IDE as a code environment and implementing the connection using #include "BluetoothSerial.h" library...
  18. System/360

    RS-232 Isn't the TXD on Mark until the start bit?

    My first post, please pardon me if this is not in the right group. I have a USB-serial adapter using the FTDI FT232R chip. Specifically it is this item I bought on taobao.com. It is connected to a Windows 10 laptop. I connected the TXD pin to a simple oscilloscope. When I send some data from...
Top