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volt.tech Latest Questions

monaembroidery
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monaembroidery
Asked: September 21, 2023In: Memories

Discover Exquisite Embroidery Creations at Mona Embroidery

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pakistani party wear dresses, where every thread weaves a tale of artistry and dedication. Their stitches create masterpieces on fabric, bringing timeless elegance and craftsmanship to life. Discover a world of creativity and tradition at Mona Embroidery.

embroidery designs dressluxury pretpakistani party wear dresses
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nidhi singh
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nidhi singh
Asked: September 15, 2023In: LEDs & Optoelectronics

How to Get High Speed LED Driver in Different Series?

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Hello, Not sure that the product I am looking for exists. It should behave like an LED driver but after looking through different LEDs I did not find a product that meets my needs.Can drive 1…. 15 LEDs connected in series Have ...Read more

driverledpwmseries
  • 1 Answer
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Answer
  1. Alex thomas
    Added an answer on September 19, 2023 at 11:10 am

    Hello, Right, existing LED drivers all have PWM engines. It depends on the LED, some have Vf = 1.8, and some have 3.5V. So, 15x3.5 = 52.5 V in direct mode. Also current, 20 mA or more? For low current low voltage OPA may be an option, or OPA buffered by transistor for high CV. Thank You

    Hello,

    Right, existing LED drivers all have PWM engines.

    It depends on the LED, some have Vf = 1.8, and some have 3.5V. So, 15×3.5 = 52.5 V in direct mode. Also current, 20 mA or more?

    For low current low voltage OPA may be an option, or OPA buffered by transistor for high CV.

    Thank You

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ellasmith
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ellasmith
Asked: September 13, 2023In: Wireless Connectivity

How to Reset MCU while opening serial port in ESP32?

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Hi, I’m working on a circuit based on AiThinker ESP32-C3-13/ 13U- Kit and communicating the ESP32 kit with my computer through GPIO18 and GPIO19. The problem is when I open the COM port on my. In the net operation, MCU resets ...Read more

aithinkercomesp32gpio18gpio19mcuportserial
  • 1 Answer
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Answer
  1. Julian White
    Added an answer on September 14, 2023 at 10:59 am

    Hello, You should set handshake after setting property RtsEnable = true. Use properties as below:- _serialPort.RtsEnable = true; _serialPort.Handshake = System.IO.Ports.Handshake.RequestToSend; _serialPort.RtsEnable = false; Thank You

    Hello,

    You should set handshake after setting property RtsEnable = true. Use properties as below:-

     _serialPort.RtsEnable = true;
    _serialPort.Handshake = System.IO.Ports.Handshake.RequestToSend;
    _serialPort.RtsEnable = false;
    
    Thank You
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vikas Nagpal
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vikas Nagpal
Asked: September 11, 2023In: Microcontroller

How to accompanied Three PWM waveforms to RA4M1?

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Hello, Three accompanied PWM waveforms Is there a recommended way of producing three accompanied PWM waveforms on an RA4M1? Two is easy with the two outputs from one counter, but how about three? Should I start two counters together, and hope for the ...Read more

mcumicrocontrollerpwmra4m1renesaswaveforms
  • 1 Answer
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Answer
  1. Julian White
    Added an answer on September 12, 2023 at 10:33 am

    Hello @Vikas, Thanks for posting your question online. Yes, one way to have multiple synchronized PWM waveforms is to start multiple counters at the same time, as you can see in the screenshot below Regards, Julian White

    Hello vikas Nagpal,

    Thanks for posting your question online.

    Yes, one way to have multiple synchronized PWM waveforms is to start multiple counters at the same time, as you can see in the screenshot below

    Regards,
    Julian White

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sachinsharma
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sachinsharma
Asked: September 1, 2023In: LEDs & Optoelectronics

How TRIAC Dimmers is Compatible with XDPL8221?

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Hello, I learned that XDPL8221 can achieve 120- 277V input, 0- 10V dimming, and CC or CV output. These functions are what I need. I also want it to support TRIAC dimmer, can it support TRIAC dimming? Or is there any other recommended ...Read more

dimmersICledtriacxdpl8221
  • 1 Answer
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Answer
  1. Alex thomas
    Added an answer on September 4, 2023 at 11:01 am

    Hi @sachinsharma, XDPL8221 has a PWM dimming interface which is implemented with the aid of CDM10V. The duty cycle sensed at the PWM pin will set the output current accordingly. Please have a look at the LED/SMPS Flyback Control IC IRS2982S which may fulfill your requirement. This driver is TRIAC diRead more

    Hi sachinsharma,

    XDPL8221 has a PWM dimming interface which is implemented with the aid of CDM10V. The duty cycle sensed at the PWM pin will set the output current accordingly.

    Please have a look at the LED/SMPS Flyback Control IC IRS2982S which may fulfill your requirement. This driver is TRIAC dimmable. Refer to the attached application note for more details.

    Regards,
    Alex Thomas

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nidhi singh
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nidhi singh
Asked: August 28, 2023In: Power Management

How to get output in PDO2 with 3 PDOs work together?

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Hi, I need help with the PDO2 output in STUSB4500. In spite of setting the PDO Number as 3 and configuring the PDO2 voltage and current values using the STSW- STUSB002 GUI, I can not get any voltage output at PDO2. ...Read more

ledpdo1pdo2pdo3pdosstusb002stusb4500voltage
  • 1 Answer
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Answer
  1. ashishgawade
    Added an answer on August 29, 2023 at 10:32 am

    Hello I assume that you're using our STEVAL_ISC005V1 board and what you call 'PDO1' is Vsnk from the schematic. However, Vsnk lights are on for all PDOs selections. Whereas PDO2 is ON if PDO2 is selected and PDO3 if PDO3 is selected. Our algorithm always tries to select the highest voltage. If the cRead more

    Hello

    I assume that you’re using our STEVAL_ISC005V1 board and what you call ‘PDO1’ is Vsnk from the schematic.

    However, Vsnk lights are on for all PDOs selections. Whereas PDO2 is ON if PDO2 is selected and PDO3 if PDO3 is selected.

    Our algorithm always tries to select the highest voltage. If the charger is so that PDO3 can be selected, then PDO3 Vsink will light on,

    However, also PDO2 Vsnk will light ON. If the charger is smaller.

    Best regards

    Ashish Gawade

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ellasmith
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ellasmith
Asked: August 24, 2023In: Wireless Connectivity

How to enter the low- level RF encoder/decoder on the ESP32- C3?

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Hello Can I get access to the low-level RF encoder/ decoder on the ESP32- C3? I would like to transfer and receive my own signals applying the 2.4 GHz antenna, outside of the Bluetooth/ wifi protocols. The reason I need to ...Read more

antennabluetoothdecoderencoderesp32rfwifi
  • 1 Answer
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Answer
  1. vikas Nagpal
    Added an answer on August 25, 2023 at 10:24 am

    Hello, Yes, the ESP32-C3 microcontroller provides access to the low-level RF encoder/decoder functionality for custom transmission and reception on the 2.4 GHz frequency. The ESP32-C3 is equipped with a Wi-Fi/Bluetooth subsystem, but it also supports other communication modes, such as RF communicatiRead more

    Hello,

    Yes, the ESP32-C3 microcontroller provides access to the low-level RF encoder/decoder functionality for custom transmission and reception on the 2.4 GHz frequency. The ESP32-C3 is equipped with a Wi-Fi/Bluetooth subsystem, but it also supports other communication modes, such as RF communication using the RF module.

    To use the RF module for your application, you would typically need to bypass the higher-level protocols like Wi-Fi and Bluetooth and directly control the RF interface. The ESP32-C3 provides a general-purpose radio (RF) peripheral that can be used for this purpose.

    Thank You

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Julian White
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Julian White
Asked: August 22, 2023In: Microcontroller

How to test voice with TW001- VUIA6E1POCZ?

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Dear, I am trying to test voice recognition with TW001- VUIA6E1POCZ. However, in the end, I am facing an error as follows. Could you let me know why it happened? And please, let me get the latest DSpotterSDK. The communication shows me the version as” Nov 1, 2021″.Thanks.

ra6e1testtw001voicevuia6e1pocz
  • 1 Answer
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Answer
  1. nidhi singh
    Added an answer on August 23, 2023 at 11:05 am

    Hi there, You can follow the below steps to reactivate the software license. (Note that you also can use the same procedure to reactivate your kit when this kind of issue happens again) Step 1 Use Segger J- Flash Lite to erase the chip. Step 2 Use Segger J- Flash Lite to program the corresponding s-Read more

    Hi there,

    You can follow the below steps to reactivate the software license. (Note that you also can use the same procedure to reactivate your kit when this kind of issue happens again)

    Step 1 Use Segger J- Flash Lite to erase the chip.

    Step 2 Use Segger J- Flash Lite to program the corresponding s- record image file. The ZIP file below contains the image file for RA6E1- VUI kit( TW001- VUIA6E1POCZ). zip

    Step 3 Extract the Zip file below to get the CyberonLicenseTool and execute it.

    Software License RecoveryTool.zip

    Step 4 In the tool pane, select the”CybServer_RenesasWWPromo_Recovery. bin”, which is also provided by the above Zip file, in the first configurable window.

    Step 5 Then, fill up the correct UART settings in the second configurable window. You can check out Device Director to get the correct COM port number, which should be assigned to JLink CDC UART Port.

    Step 6 Click the launch button. Then, you should get the communication as same as below.

    Step 7 Press the onboard S2 Reset button( should be a red color button). also, you should get the communication as same as below.
    *** When you find the communication of” License data OK”, the reactivation process is done successfully. ***

    Step 8 Before you close the tool, you can try speaking to the device using Wake- up command” Hey Siri”. Once the program reacts to your voice command, it means the license confirmation process is passed.

    Step 9 Close the license programming tool and reboot your device. After that, you can use Tera Term to test the device.

    NOTE For doing this process, there’s no extra hardware connection needed except the single USB connection between your computer and the onboard micro USB connector J6.

    Thanks,

    Nidhi

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Alex thomas
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Alex thomas
Asked: August 11, 2023In: LEDs & Optoelectronics

How to correct this error message in LED?

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Hello, I added some LED off/on/off/ on code and when I clicked Build, I get the following error message. Build process unable to cancel contents of code gen dir. Error Failed to delete.lcpsoc3 Access to the path.lcpsoc3‘ is denied. I believe that I ...Read more

errorlcpsoc3ledmessage
  • 1 Answer
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Answer
  1. ellasmith
    Added an answer on August 16, 2023 at 11:32 am

    Hello, Check your access rights to the path and the files. Sometimes when files are copied from extern the rights are set to read-only. Thank You Ella

    Hello,

    Check your access rights to the path and the files. Sometimes when files are copied from extern the rights are set to read-only.

    Thank You

    Ella

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sachinsharma
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sachinsharma
Asked: August 9, 2023In: Microcontroller

How to find the SRAM Backup in STM32H563?

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Hi, How to find the Backup SRAM located on STM32H563 (at which address)? I did not find it in the documentation. Thanks

backupsramstm32h563
  • 1 Answer
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Answer
  1. vikas Nagpal
    Added an answer on August 10, 2023 at 10:42 am

    Hello @sachinsharma Backup SRAM starts at address 0x4003_6400 to0x4003_73FF (Non-Secure) or to0x5003_73FF (Secure) I'll ask to add it to the Reference Manual. Best Regards, Vikas Nagpal

    Hello sachinsharma

    Backup SRAM starts at address 0x4003_6400 to0x4003_73FF (Non-Secure)
    or
    to0x5003_73FF (Secure)

    I’ll ask to add it to the Reference Manual.

    Best Regards,
    Vikas Nagpal

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  • Alex thomas
    Alex thomas added an answer Hello, Right, existing LED drivers all have PWM engines. It… September 19, 2023 at 11:10 am
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    Julian White added an answer Hello, You should set handshake after setting property RtsEnable =… September 14, 2023 at 10:59 am
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    Julian White added an answer Hello @Vikas, Thanks for posting your question online. Yes, one… September 12, 2023 at 10:33 am
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    Alex thomas added an answer Hi @sachinsharma, XDPL8221 has a PWM dimming interface which is… September 4, 2023 at 11:01 am
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    ashishgawade added an answer Hello I assume that you're using our STEVAL_ISC005V1 board and… August 29, 2023 at 10:32 am

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