# Latest

**URL:** https://discourse.syntiant.com/latest.md

[Latest](https://discourse.syntiant.com/latest.md) · [Categories](https://discourse.syntiant.com/categories.md) · [Tags](https://discourse.syntiant.com/tags.md)

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## [Welcome to the Syntiant Forum! We are glad you are here](https://discourse.syntiant.com/t/welcome-to-the-syntiant-forum-we-are-glad-you-are-here/7)

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**Author:** [@system](https://discourse.syntiant.com/u/system)\
**Replies:** 1\
**Last updated:** [December 8, 2021, 1:34am UTC](https://discourse.syntiant.com/t/welcome-to-the-syntiant-forum-we-are-glad-you-are-here/7 "2021-12-08T01:34:02Z")

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Greetings! :slightly\_smiling\_face: This forum was created for technology pioneers, AI junkies, TinyML hobbyists, Syntiant product users, and global engineers architecting their way to a better world. Within these AI-po…

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## [Arduino Nicla voice with locally trained model](https://discourse.syntiant.com/t/arduino-nicla-voice-with-locally-trained-model/129)

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**Author:** [@EdeVJ](https://discourse.syntiant.com/u/EdeVJ)\
**Replies:** 1\
**Last updated:** [May 15, 2026, 3:15pm UTC](https://discourse.syntiant.com/t/arduino-nicla-voice-with-locally-trained-model/129 "2026-05-15T15:15:07Z")

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I am trying to deploy a custom locally trained audio classification model to the Arduino Nicla Voice. I have already exported models through PyTorch, ONNX, TensorFlow, and TFLite, and I also tried Edge Impulse BYOM. How…

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## [How to measure the power consumption on the TinyML](https://discourse.syntiant.com/t/how-to-measure-the-power-consumption-on-the-tinyml/128)

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**Author:** [@Kimi](https://discourse.syntiant.com/u/Kimi)\
**Replies:** 4\
**Last updated:** [May 19, 2025, 4:14am UTC](https://discourse.syntiant.com/t/how-to-measure-the-power-consumption-on-the-tinyml/128 "2025-05-19T04:14:55Z")

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Hi, We try to measure the power consumption, please tell us how to do with TinyML board

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## [Nicla Voice TFLite Model output storage](https://discourse.syntiant.com/t/nicla-voice-tflite-model-output-storage/126)

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**Author:** [@adorzh](https://discourse.syntiant.com/u/adorzh)\
**Replies:** 2\
**Last updated:** [May 12, 2025, 6:55pm UTC](https://discourse.syntiant.com/t/nicla-voice-tflite-model-output-storage/126 "2025-05-12T18:55:27Z")

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Hello, I am using Nicla Voice board and I want to deploy my own TensorFlow model on it. My model does some voice filtering and outputs filtered speech signal. I want to store this filtered speech recording and download …

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## [TinyML board bootloader restore](https://discourse.syntiant.com/t/tinyml-board-bootloader-restore/123)

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**Author:** [@Kroun1](https://discourse.syntiant.com/u/Kroun1)\
**Replies:** 1\
**Last updated:** [July 3, 2024, 5:45pm UTC](https://discourse.syntiant.com/t/tinyml-board-bootloader-restore/123 "2024-07-03T17:45:46Z")

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Hi, Is there any way to restore the bootloader on a TinyML board? I tried some alternative methods of flashing the FW, but unfortunately, this caused the COM port to become unavailable after connecting the TinyML board …

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## [Continuous Sound Identification using Nicla Voice](https://discourse.syntiant.com/t/continuous-sound-identification-using-nicla-voice/122)

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**Author:** [@drmpf](https://discourse.syntiant.com/u/drmpf)\
**Replies:** 2\
**Last updated:** [June 17, 2024, 7:13am UTC](https://discourse.syntiant.com/t/continuous-sound-identification-using-nicla-voice/122 "2024-06-17T07:13:23Z")

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I am using nicla Voice for rain detection with a model build by EdgeImpulse There are two classes Rain and znoise i.e. not rain I would like to classifier output to show Rain / znoise but with continual rain I only…

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## [NDP.onMatch() does not work with the accelerometer sensor (Arduino Nicla Voice)](https://discourse.syntiant.com/t/ndp-onmatch-does-not-work-with-the-accelerometer-sensor-arduino-nicla-voice/120)

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**Author:** [@pgudino](https://discourse.syntiant.com/u/pgudino)\
**Replies:** 6\
**Last updated:** [June 5, 2024, 5:44pm UTC](https://discourse.syntiant.com/t/ndp-onmatch-does-not-work-with-the-accelerometer-sensor-arduino-nicla-voice/120 "2024-06-05T17:44:46Z")

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Hello, I have made a model that allows detecting falls using the accelerometer values ​​as data and uses the Syntiant processing block. The model was made in edge impulse. I made a sketch in Arduino Ide to be able to…

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## [Modify Synpkg Firmware](https://discourse.syntiant.com/t/modify-synpkg-firmware/118)

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**Author:** [@dan.sha](https://discourse.syntiant.com/u/dan.sha)\
**Replies:** 1\
**Last updated:** [April 29, 2024, 6:00pm UTC](https://discourse.syntiant.com/t/modify-synpkg-firmware/118 "2024-04-29T18:00:42Z")

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Hey everyone, I created a ML model and uploaded it to my Nicla Voice. I want to trigger an event based on the detection of some sound patterns, but that means I need somehow to modify the Firmware I got from Edge Impul…

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## [Orange LED blinking and not able to flash](https://discourse.syntiant.com/t/orange-led-blinking-and-not-able-to-flash/86)

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**Author:** [@yokonav](https://discourse.syntiant.com/u/yokonav)\
**Replies:** 2\
**Last updated:** [April 23, 2024, 5:37pm UTC](https://discourse.syntiant.com/t/orange-led-blinking-and-not-able-to-flash/86 "2024-04-23T17:37:19Z")

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Hi, I am using the TinyML board which I received yesterday from Digikey. When I plugged in a micro USB cable the onboard Orange LED starts blinking at 1 second frequency. I am not able to flash any firmware using the Ar…

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## [NDP101 on TinyML board freezes](https://discourse.syntiant.com/t/ndp101-on-tinyml-board-freezes/111)

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**Author:** [@Kroun1](https://discourse.syntiant.com/u/Kroun1)\
**Replies:** 1\
**Last updated:** [April 23, 2024, 5:30pm UTC](https://discourse.syntiant.com/t/ndp101-on-tinyml-board-freezes/111 "2024-04-23T17:30:32Z")

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I have implemented a low-power mode operation based on some examples from GitHub. It appears to work well, but I’ve noticed that the TinyML board sometimes freezes and fails to wake up when exposed to sounds that typical…

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## [Preemphasis coefficient in Edge Impulse Studio](https://discourse.syntiant.com/t/preemphasis-coefficient-in-edge-impulse-studio/110)

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**Author:** [@Kroun1](https://discourse.syntiant.com/u/Kroun1)\
**Replies:** 1\
**Last updated:** [April 23, 2024, 5:15pm UTC](https://discourse.syntiant.com/t/preemphasis-coefficient-in-edge-impulse-studio/110 "2024-04-23T17:15:33Z")

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Hi, In the Edge Impulse Studio, there is a possibility to change the preemphasis coefficient, which has a default value of 0.96875. I understood that this has an impact on the spectrogram (generated features). In some …

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## [Real time speech to intent on syntiant ndp 120 help](https://discourse.syntiant.com/t/real-time-speech-to-intent-on-syntiant-ndp-120-help/113)

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**Author:** [@tabrez\_A](https://discourse.syntiant.com/u/tabrez_A)\
**Replies:** 2\
**Last updated:** [April 19, 2024, 5:59am UTC](https://discourse.syntiant.com/t/real-time-speech-to-intent-on-syntiant-ndp-120-help/113 "2024-04-19T05:59:10Z")

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Hi, Im trying to replicate this project on syntiant ndp 120 board (GitHub - AIWintermuteAI/Speech-to-Intent-Micro: An open-source, easily accessible package for training and deploying Speech-to-Intent models on microcont…

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## [Quality of audio pick-up with NDP120](https://discourse.syntiant.com/t/quality-of-audio-pick-up-with-ndp120/89)

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**Author:** [@Mon2](https://discourse.syntiant.com/u/Mon2)\
**Replies:** 10\
**Last updated:** [December 6, 2023, 6:27pm UTC](https://discourse.syntiant.com/t/quality-of-audio-pick-up-with-ndp120/89 "2023-12-06T18:27:00Z")

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Hello. We are testing the Nicla Voice to validate if the NDP120 is suitable for our designs. After some struggle (4 days) have the Impulse Edge RC demo working. Our fixes have been posted on their user forum. The demo w…

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## [How to increase windows size in sound classification](https://discourse.syntiant.com/t/how-to-increase-windows-size-in-sound-classification/74)

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**Author:** [@john\_doe](https://discourse.syntiant.com/u/john_doe)\
**Replies:** 1\
**Last updated:** [December 6, 2023, 5:10pm UTC](https://discourse.syntiant.com/t/how-to-increase-windows-size-in-sound-classification/74 "2023-12-06T17:10:25Z")

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Hi, I am using the TinyML board and trying to classify various sounds based on their source. I am using edge impulse and the recommended window size in 986ms. Is there a way to increase this windows size?

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## [Convert pre-trained model to synpkg for NDP120](https://discourse.syntiant.com/t/convert-pre-trained-model-to-synpkg-for-ndp120/100)

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**Author:** [@hasan](https://discourse.syntiant.com/u/hasan)\
**Replies:** 1\
**Last updated:** [December 6, 2023, 4:51pm UTC](https://discourse.syntiant.com/t/convert-pre-trained-model-to-synpkg-for-ndp120/100 "2023-12-06T16:51:08Z")

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Using Tensor Flow Lite, I have prepared a custom pre-trained model (model.tflite). How can I run it on NDP120 by preparing a corresponding synpkg? I am using Arduino Nicla Voice board. I have checked Edge Impulse, it al…

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## [Using External Sensors with Syntiant TinyML](https://discourse.syntiant.com/t/using-external-sensors-with-syntiant-tinyml/108)

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**Author:** [@neetsy](https://discourse.syntiant.com/u/neetsy)\
**Replies:** 0\
**Last updated:** [December 6, 2023, 11:42am UTC](https://discourse.syntiant.com/t/using-external-sensors-with-syntiant-tinyml/108 "2023-12-06T11:42:25Z")

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Hi, I recently posted this same inquiry to Edge Impulse(linked here), but wanted to post here as well to get more ideas. I was wondering if anyone has experience using the Syntiant TinyML with external sensor data. I’m …

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## [What is traditional marketing?](https://discourse.syntiant.com/t/what-is-traditional-marketing/106)

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**Author:** [@akash1254](https://discourse.syntiant.com/u/akash1254)\
**Replies:** 0\
**Last updated:** [November 20, 2023, 10:20am UTC](https://discourse.syntiant.com/t/what-is-traditional-marketing/106 "2023-11-20T10:20:55Z")

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In the ever-evolving landscape of marketing, where digital strategies and online platforms dominate conversations, it’s crucial not to overlook the significance of traditional marketing methods. Traditional marketing, of…

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## [How to build a successful business?](https://discourse.syntiant.com/t/how-to-build-a-successful-business/105)

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**Author:** [@akash1254](https://discourse.syntiant.com/u/akash1254)\
**Replies:** 0\
**Last updated:** [November 19, 2023, 8:57am UTC](https://discourse.syntiant.com/t/how-to-build-a-successful-business/105 "2023-11-19T08:57:23Z")

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Building a successful business is a multifaceted journey that requires a combination of strategic planning, dedication, and adaptability. Whether you’re an aspiring entrepreneur or a seasoned business owner looking to en…

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## [What is the rule of six sales?](https://discourse.syntiant.com/t/what-is-the-rule-of-six-sales/103)

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**Author:** [@mstjoti11](https://discourse.syntiant.com/u/mstjoti11)\
**Replies:** 0\
**Last updated:** [November 18, 2023, 7:47am UTC](https://discourse.syntiant.com/t/what-is-the-rule-of-six-sales/103 "2023-11-18T07:47:23Z")

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The “Rule of Six” in sales is a principle proposed by Brian Tracy, a sales trainer and motivational speaker, that suggests customers typically have no more than six objections to purchasing a product or service. This rul…

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## [Inference hangs when using an motion sensor project](https://discourse.syntiant.com/t/inference-hangs-when-using-an-motion-sensor-project/98)

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**Author:** [@john\_doe](https://discourse.syntiant.com/u/john_doe)\
**Replies:** 3\
**Last updated:** [October 20, 2023, 5:22am UTC](https://discourse.syntiant.com/t/inference-hangs-when-using-an-motion-sensor-project/98 "2023-10-20T05:22:48Z")

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Hello, I am working on a project which uses the motion sensor of the Syntiant TinyML board with edge-impulse. When I start the inference on the board (edge-impulse-run-impulse), the board doesn’t do anything and hangs af…

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## [Tinyml board usb devices](https://discourse.syntiant.com/t/tinyml-board-usb-devices/96)

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**Author:** [@merlin](https://discourse.syntiant.com/u/merlin)\
**Replies:** 3\
**Last updated:** [September 26, 2023, 2:35am UTC](https://discourse.syntiant.com/t/tinyml-board-usb-devices/96 "2023-09-26T02:35:35Z")

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I bought the TinyML board and am having trouble seeing the Audio and Serial USB interfaces. I plug the board in and expect to see the devices show up in Device Manager. They don’t I am using Windows 11 vs 10 . Is this …

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## [TinyML board microphone low pass filter](https://discourse.syntiant.com/t/tinyml-board-microphone-low-pass-filter/92)

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**Author:** [@Kroun1](https://discourse.syntiant.com/u/Kroun1)\
**Replies:** 1\
**Last updated:** [August 17, 2023, 3:43am UTC](https://discourse.syntiant.com/t/tinyml-board-microphone-low-pass-filter/92 "2023-08-17T03:43:20Z")

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Hello, Is there any way to implement a high pass (or other type of filter) for the microphone on the TinyML board? It would be very useful for example to filter out noise caused by wind in outdoor conditions. I suppose …

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## [Max microphone sampling rate](https://discourse.syntiant.com/t/max-microphone-sampling-rate/83)

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**Author:** [@Robert](https://discourse.syntiant.com/u/Robert)\
**Replies:** 0\
**Last updated:** [February 28, 2023, 1:51pm UTC](https://discourse.syntiant.com/t/max-microphone-sampling-rate/83 "2023-02-28T13:51:22Z")

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Hello i’m looking before purchasing this board I want to do wildlife detection. From the example i see the sampling rate from the microphone is fixed to 16kHz. Is it possible to change it? and to increase it? It see…

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## [TinyML Board 3D printable case](https://discourse.syntiant.com/t/tinyml-board-3d-printable-case/70)

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**Author:** [@john\_doe](https://discourse.syntiant.com/u/john_doe)\
**Replies:** 3\
**Last updated:** [November 12, 2022, 11:12am UTC](https://discourse.syntiant.com/t/tinyml-board-3d-printable-case/70 "2022-11-12T11:12:30Z")

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Hi, In one of the demo videos of the tinyML board, I noticed a case on the board. Is the CAD or STL file available to download?

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## [Firmware synchronous tinyml project compilation error](https://discourse.syntiant.com/t/firmware-synchronous-tinyml-project-compilation-error/55)

<div class="topic-metadata">

**Author:** [@NameHard](https://discourse.syntiant.com/u/NameHard)\
**Replies:** 6\
**Last updated:** [October 14, 2022, 1:43am UTC](https://discourse.syntiant.com/t/firmware-synchronous-tinyml-project-compilation-error/55 "2022-10-14T01:43:10Z")

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For the firmware-syntiant-tinyml project, I executed the update\_libraries\_windows file according to the instructions of README file, and then compiled it. However, the project compilation failed. Errors are reported as …

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## [Post Processing Parameters](https://discourse.syntiant.com/t/post-processing-parameters/67)

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**Author:** [@Safavi40](https://discourse.syntiant.com/u/Safavi40)\
**Replies:** 6\
**Last updated:** [October 3, 2022, 3:35pm UTC](https://discourse.syntiant.com/t/post-processing-parameters/67 "2022-10-03T15:35:14Z")

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Hi all, Does anyone know how to have access to softmax values at the output of NDP101 on the tinyML board to adjust post paramters? Thanks, Saeid

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## [I2C example code for Syntiant TinyML board?](https://discourse.syntiant.com/t/i2c-example-code-for-syntiant-tinyml-board/68)

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**Author:** [@jlutz](https://discourse.syntiant.com/u/jlutz)\
**Replies:** 3\
**Last updated:** [September 22, 2022, 2:38am UTC](https://discourse.syntiant.com/t/i2c-example-code-for-syntiant-tinyml-board/68 "2022-09-22T02:38:25Z")

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@AviAIML or @AtulAIML , do you have sample code to read I2C from a device? I saw in the documentation that there is an I2C bus on the TinyML board. Thanks!

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## [Writing firmware from scratch using Arduino IDE](https://discourse.syntiant.com/t/writing-firmware-from-scratch-using-arduino-ide/66)

<div class="topic-metadata">

**Author:** [@AviAIML](https://discourse.syntiant.com/u/AviAIML)\
**Replies:** 0\
**Last updated:** [August 22, 2022, 6:21pm UTC](https://discourse.syntiant.com/t/writing-firmware-from-scratch-using-arduino-ide/66 "2022-08-22T18:21:42Z")

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There are two ways one can develop firmware Using starting repo from the Edge Impulse GitHub - edgeimpulse/firmware-syntiant-tinyml: Edge Impulse firmware for Syntiant TinyML board The above code is comprehensives b…

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## [Programmable 5V supply at pin # 2](https://discourse.syntiant.com/t/programmable-5v-supply-at-pin-2/65)

<div class="topic-metadata">

**Author:** [@AviAIML](https://discourse.syntiant.com/u/AviAIML)\
**Replies:** 0\
**Last updated:** [August 11, 2022, 11:22pm UTC](https://discourse.syntiant.com/t/programmable-5v-supply-at-pin-2/65 "2022-08-11T23:22:57Z")

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5V supply can be programmed to supply 5V for small loads (\<200mA). Following repo shows the code. The supply can be programmed as function of classifier detection.

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## [Output .wav files to amp/8Ohm speaker?](https://discourse.syntiant.com/t/output-wav-files-to-amp-8ohm-speaker/59)

<div class="topic-metadata">

**Author:** [@jlutz](https://discourse.syntiant.com/u/jlutz)\
**Replies:** 5\
**Last updated:** [August 11, 2022, 12:54pm UTC](https://discourse.syntiant.com/t/output-wav-files-to-amp-8ohm-speaker/59 "2022-08-11T12:54:25Z")

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Hello, I was thinking of a use case of performing an audio classification model on the TinyML board, and then depending on that inference, playing an audio file (from the SD card) on an 8 Ohm speaker. Is this possible o…

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