
Overview
Speech Recognition Engine is an extensive software library that allows anyone to quickly and easily interact with devices and machines by talking. It was developed by Cyberon, the worldwide leader in speech recognition, with ease of use and compatibility in mind for instant integration into new applications or existing solutions.
Speech Recognition Engine is compatible with multiple Arduino boards and with the Arduino IDE and requires no additional hardware, software or internet connectivity.
Its AI/ML engine understands commands defined through text input in 40+ languages – regardless of the speaker’s actual voice, tone or accent. This means multiple wake-up words and sequences can be quickly configured, and there is no need to retrain for different users.
Ready to test it?
Get started with a free trial license here.
Do you already have a voucher? Register it here.
Key benefits include:
- Powerful library with integrated AI/ML engine for phoneme-based modeling
- Recognition of multiple wake-up words and sequences of commands
- No vocal training required, commands configurable through text input
- Support for 40+ languages, independent from accent variations
- One configuration for multiple speakers, without retraining
- Recognition on the edge, no need of additional HW/SW or connectivity
- Suitable for noisy environments
- Expand existing projects with speech recognition capabilities
- Compatible with multiple Arduino Nano and Portenta products
- Compatible with Arduino IDE and Arduino CLI
Industrial-grade speech recognition
Speech Recognition Engine was developed in partnership with Cyberon, a leading embedded speech solution provider, to be part of Arduino Pro’s growing ecosystem of advanced professional solutions.
Forget the training period
Your next smart device can immediately understand every major language in the world, regardless of the speaker’s tone or accent. How? Speech Recognition Engine uses text input to define voice commands, translating them into instant results.
Infinite applications
Speech Recognition Engine is ideal for industrial and building automation applications such as hands-free control of machinery, equipment and devices of all kinds, but also for any situation where multiple people may need to interact with objects using their voice: information kiosks, vending machines and lockers, smart beds in hospitals, emergency call systems and more.
Hear, hear!
Speech Recognition Engine helps machines and devices understand multiple users without requiring specific training for individual voices. Also, it’s able to listen to the person speaking to it while filtering background noise, making it suitable for busy or crowded environments.
Need industrial-grade speech recognition? We hear you!
Refund Policy
Price is not refundable.
Arduino Speech Recognition License is permanently valid on the associated product but, due to the automated way that orders are processed and fulfilled, once the Voucher order is processed and the Voucher code is issued and provided, this cannot be canceled. Exceptions are handled on a case-by-case basis and only granted when emergency or extenuating circumstances exist.
Tech specs
NUMBER OF | RECOG. TIMES | DELAY IN TRIGGER MODE** | HARDWARE BINDING*** | |||
PLANS | DATASET* | TRIGGERS | COMMANDS | |||
Free Trial | 1 | 1 | 20 max | 50 | 20s | Yes |
Cyberon License | 1 | 1 | 20 max | Unlimited | No | Yes |
Voucher Type Selection
Core Type | ARM® Cortex® M4/M7 | ARM® Cortex® M0 |
Compatible Product | Nano 33 BLE Sense Rev2 | Nano RP2040 Connect |
Portenta H7 | ||
Nicla Vision |
*The dataset cannot be changed after deploying it on the board
**Delay between entering the Trigger Mode and the recognition of the Wake-up Word
***The license is bound to the serial number of a single Arduino board
Learn more
Get Inspired

I have prepare home Automoation project using Arduino nano esp32

Home file servers can be very useful for people who work across multiple devices and want easy access to their documents. And there are a lot of DIY build guides out there. But most of them are full-fledged NAS (network-attached storage) devices and they tend to rely on single-board computers. Those take a long time to boot and consume quite a lot of power. This lightweight file server by Zombieschannel is different, because it runs entirely on an Arduino. An ESP32 is a microcontroller with built-in connectivity (Wi-Fi and Bluetooth). Like all MCUs, it can “boot” and start running its firmware almost instantly. And while it runs, it will consume much less power than a conventional PC or a single-board computer. Zombieschannel’s project proves that the Arduino Nano ESP32 is suitable for a file server — if your expectations are modest. The hardware for this project consists of a Nano ESP32, an SD card reader module, and a small monochrome OLED screen. The SD card provides file storage and the OLED shows status information. Most of the work went into writing the firmware, which Zombieschannel did with assistance from ChatGPT. That has the Arduino hosting a basic web interface that local users can access to upload or download files. Zombieschannel also created a command line interface that provides more comprehensive access via a serial connection. This does have limitations and the transfer speeds are quite slow by modern standards. But the file server seems useful for small files, like text documents. Zombieschannel plans to design an enclosure for the device and it should tuck unobtrusively into a corner, where it can run without drawing much power.
FAQs
How may I test the Arduino Speech Recognition Engine?
In order to test the Arduino Speech Recognition Engine, you have the possibility to:
- Start a free trial here with the limitations reported in the Tech Specs.
- Purchase the right voucher for your board here.
How can I activate my voucher?
You will get your voucher by email. Once received, you need to register it at this link to start developing your own custom voice recognition model. Check this documentation to learn more.
Which are the main differences between the Free trial and the Cyberon License activatable with the Voucher?
Check the reported Tech Specs to compare the two licenses. If you would like to unlock all the limitations, feel free to contact us.
How can I change the model I have already deployed on my board?
Deployed models are not customizable, but you can always purchase an additional voucher to generate a new model for the same hardware.