HOME COMMUNITY FORUM WIKI BLOG LEARN
Forum >Replies by Zane
userhead Zane
Replies （6）
  • Topic: DFR0550 Disable Screensaver
    You Reply:

    Hi！What version of Raspberry Pi are you using? Raspberry Pi 4B? I need to know your detailed settings here. Can you provide more detailed information? How do you set the screen to be disabled? We want to reproduce your problem in order to solve it.

  • Topic: Firebeetle 2 expansion shield UART Pin Usage Query
    You Reply:

    Are you using Firebeetlt ESP32-S3? Soft serial ports can be set, and all GPIO ports except for 0 and 1 can be mapped.

     

    3. Serial Port

    Mapping is required for initializing ESP32 S3 serial port. Available ports: Serial, Serial1, Serial2

    Serial1.begin(baud, config, rxPin, txPin);
    Description: Serial1 initialization
    Parameters:baud: baud rateconfig: data bit and stop bit settingrxPin: RX pintxPin: TX pin
  • Topic: Possible to connect more tan one 4-20mA module via I2C (DFR0972)?
    You Reply:

    If you want to use three DFR0972 at the same time, we recommend purchasing one DFR0759 (I2C HUB) to implement your idea.        DFR0759:重力：I2C HUB Arduino - DFRobot --- Gravity: I2C HUB Arduino - DFRobot                                                                                                                                                         

  • Topic: DFR0971_2_Channel_I2C_0_10V_DAC_Modul
    You Reply:

    There is no need to calculate the output voltage value because the formula for converting I2C output to voltage has already been encapsulated in the library. 0-5V corresponds to 0-5000, 0-10V for 0-10000. For example, to make it output 3.5V within the range of 10V, revise the data in the function setDACOutVoltage(data, channel); to 3500. The product wiki has been modified, please go to the wikipage for details.

  • Topic: Can't get receive messages from CAN shield with car OBD
    You Reply:

    Sorry to reply you for so long. 

     

    We have found the reason for your problem. After the Arduino ide version is updated, the write function is no longer supported to write data in the serial port. 

     

    The following modifications are required:

     

    After modification, you can normally receive the data sent by CAN in the serial port. And we will update the Wiki in time.

     

    Thank you for your support to our company.

  • Topic: CAN-Bus shield example initializing without shield connected
    You Reply:

    Sorry to reply you for so long. 

     

    We have found the reason for your problem. After the Arduino ide version is updated, the write function is no longer supported to write data in the serial port. 

     

    The following modifications are required:

    After modification, you can normally receive the data sent by CAN in the serial port. And we will update the Wiki in time.

    Thank you for your support to our company.