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monaembroidery
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monaembroidery
Asked: September 28, 2023In:
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Hello everyone I’m fully new to this kind of hardware. Although I’ve coded a low using Arduino IDE for my home solar installation (simple code that checks the current home consumption to set the applicable inverter power). I understand that ESP32 ...Read more

Hello everyone

I’m fully new to this kind of hardware. Although I’ve coded a low using Arduino IDE for my home solar installation (simple code that checks the current home consumption to set the applicable inverter power).
I understand that ESP32 is the base for numerous devices. So for a new project, I’m looking for the lowest ESP32 device with the smallest possible energy consumption( will be battery- driven).

It actually only needs BLE to advertise (broadcast?) that it’s there- for as long as possible with a single battery — no need to transfer data, no wifi, no nothing.
So what device can you recommend to take a look at?

Thank you very much in advance!

Mona

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arduinobatterybroadcastconsumptiondeviceesp32
  1. ellasmith

    Hello, Seeed Xiao ESP32C3 is a good alternative. but to reduce power consumption, sleep mode is necessary. Thank You Ella Smith

    Hello,

    Seeed Xiao ESP32C3 is a good alternative. but to reduce power consumption, sleep mode is necessary.

    Thank You

    Ella Smith

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Erica Mills
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Erica Mills
Asked: September 22, 2023In:
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Hello, I couldn’t find anything in the CAN Bus example code or the API for setting a entering mailbox filter. RA Flexible Software Package Documentation Controller Area Network (r_can) kindly advise. Many thanks.

Hello,

I couldn’t find anything in the CAN Bus example code or the API for setting a entering mailbox filter.

RA Flexible Software Package Documentation Controller Area Network (r_can)

kindly advise.

Many thanks.

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discountly
  1. ashishgawade

    Hello, Thanks for reaching out to Volt Tech Community. The acceptance filter of CAN is implemented with 8 acceptance masks (one mask for every four mailboxes). Masks are independently enabled or disabled for each mailbox. This cannot be done with FSP APIs. You can either manually write the Mask RegiRead more

    Hello,

    Thanks for reaching out to Volt Tech Community.

    The acceptance filter of CAN is implemented with 8 acceptance masks (one mask for every four mailboxes). Masks are independently enabled or disabled for each mailbox. This cannot be done with FSP APIs. You can either manually write the Mask Registers (MKRk) (k = 0 to 7) or more easily set the group masks on the FSP configurator:

    The above settings will set the MKR registers automatically:

    Regards

    Ashish

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farmanali
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farmanali
Asked: September 21, 2023In:
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I’m presently in search of an LED driver for one of our products. Since the LEDs are applied for the stimulation of cells, it’s crucial that the output current of the driver is a real adjustable constant current and not ...Read more

I’m presently in search of an LED driver for one of our products.
Since the LEDs are applied for the stimulation of cells, it’s crucial that the output current of the driver is a real adjustable constant current and not just a high- frequency PWM signal even if the “flickering” is undetectable for the human eye.

Does Volt Tech offer products that give a dimmable constant current output (some noise is of course tolerated)?

Best wishes,

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farman ali
  1. sachinsharma

    Hi @Farmanali, Infineon has a pervasive and wide range of portfolios for LED drivers. We've best-in-class technologies that can be used in various LED lighting applications. Yes, We have a wide range of products in our portfolio that can support dimmable constant current output you can Please relateRead more

    Hi farmanali,

    Infineon has a pervasive and wide range of portfolios for LED drivers. We’ve best-in-class technologies that can be used in various LED lighting applications.

    Yes, We have a wide range of products in our portfolio that can support dimmable constant current output you can Please relate to the product webpage for further details.

    The various subcategories for LED drivers in our portfolio are as follows-

    1. DC LED Driver IC
    2. DC LED Driver IC
    3. LED Dimming Interface IC
    4. Linear LED Driver IC
    5. Ballast IC
    6. NFC- PWM configuration IC
    7. LITIX ™- Automotive LED Driver IC

    Best Regards,

    Sachin Sharma

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nidhi singh
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nidhi singh
Asked: September 15, 2023In:
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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

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 a possibility to change current through LEDs (not by PWM!)
  • Have the possibility to switch ON/ OFF LEDs rapidly. to ensure bitrate 200kb/ sec

Does such a product exist?

Thanks.

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driverledpwmseries
  1. Alex thomas

    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:
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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

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 and boots itself. So I did some research and found out that the RTS pin is connected to the ESP32-C3 EN pin so when I open the port by my. Net operation on my computer to the ESP32 kit through the COM port, MCU gets a reset signal and reboot.

To answer this problem I set properties as below;

 _serialPort.PortName = port; _serialPort.BaudRate = 115200; _serialPort.DtrEnable = true; _serialPort.RtsEnable = false; // Set the read/write timeouts _serialPort.ReadTimeout = 1000; _serialPort.WriteTimeout = 1000; try { _serialPort.Open(); message = _serialPort.ReadLine(); if (message == "HELLO\r") { // device connected  _serialPort.Close(); statusLabel.Text = "Cihaz bulundu"; return (port); } }
Even though I disable RTS, MCU still resets and boots itself. I tried all combinations for the DtrEnable and RtsEnable properties. But the result did not change.

Anybody can help me to answer this issue?

Thank you

Ella

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aithinkercomesp32gpio18gpio19mcuportserial
  1. Julian White

    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:
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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

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 best?
Should I set one to count to a higher figure, and also use the second one to reset the first?

Thank You

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mcumicrocontrollerpwmra4m1renesaswaveforms
  1. Julian White

    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:
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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

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 IC that can achieve such a function?

Thank You

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dimmersICledtriacxdpl8221
  1. Alex thomas

    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:
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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

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. The status LED is also not glowing. But PDO1 and PDO3 are working OK.

However, I get the PDO2 voltage output, If I change the PDO Number to 2 with the same voltage and current configurations as over. The status LED also glows. So, this isn’t the problem of Source Matching. I’m unable to find out the reason why this is passing and how can I make all the 3 PDOs work easily.

Is there anything that I’m missing in making all the 3 PDOs work together?

Thank You

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ledpdo1pdo2pdo3pdosstusb002stusb4500voltage
  1. ashishgawade

    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:
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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

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 do this is for an ultra-low latency application in which I simply want to send extremely simple information (a single yes/ no) and there’s just one transmitter and one receiver in the location where my product will be deployed.

Thank You

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antennabluetoothdecoderencoderesp32rfwifi
  1. vikas Nagpal

    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:
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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.

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.

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ra6e1testtw001voicevuia6e1pocz
  1. nidhi singh

    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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