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ASR - offline voice recognition module AI - CI-03T - expansion module Unit - M5Stack U194
The M5Stack Unit ASR is an intelligent offline speech recognition module based on the CI-03T chip. It supports up to 300 voice commands , has a built-in microphone and speaker , and supports AEC for high performance. UART communication allows it to work seamlessly with M5Stack controllers, enabling the creation of advanced voice-controlled systems.
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Product description: ASR - AI offline voice recognition module - CI-03T - Unit expansion module - M5Stack U194
The ASR Unit from M5Stack is an advanced offline speech recognition module designed for intelligent applications in robotics, home automation, and IoT systems. Equipped with the CI-03T , it offers speech recognition, voice detection, and voice user identification. It supports up to 300 commands , of which 42 phrases are pre-loaded. AEC technology effectively eliminates interference and echo , increasing accuracy. Thanks to the built-in microphone and speaker , the module allows both command reception and feedback.
ASR - AI offline voice recognition module - CI-03T - Unit expansion module - M5Stack U194.
Botland is an official distributor of the M5Stack module family in Poland. We have extended this system of stackable functional devices with accessories from our range and numerous blog guides. All M5Stack products presented here are original.
The ASR unit has an intelligent offline voice module CI-03T .
Main features of the ASR Unit
- CI-03T module : intelligent offline speech recognition system
- Supports 300 commands : including 42 factory start phrases
- AEC : echo and noise cancellation for high recognition accuracy
- UART communication : fast and stable data transmission
- Built-in microphone and speaker : full voice support without additional components
- Flexible wake-up : via UART or keyword
- M5Stack Compatibility : Easy integration with Core, Atom and Stick series controllers
Pinouts and compatibility with M5Stack
The ASR unit uses a Grove connector with pins: GND, 5V, UART_RX, and UART_TX. It most commonly uses port C on M5Stack CoreS3 controllers, but it can also be connected to ports A and B after properly assigning pins in the software. The module works with the entire M5Stack ecosystem, including Core , Atom , and Stick .
The module uses UART serial communication .
Programming and integration
The ASR unit supports several popular development environments, making it easy to integrate with various projects. It can be programmed using the Arduino IDE as well as the UIFlow 1.0 and 2.0 block-based development environment. The module also supports the creation of custom firmware to support multilingual wake-up phrases. This gives the developer full control over defining custom commands and integrating voice into IoT systems, robotics, and smart devices.
Technical specifications of the module
- AI Module: CI-03T
- Voice commands: up to 300 (42 pre-installed)
- Wake-up method: UART or keyword
- Microphone: analog
- Speaker: 8 Ω / 1 W (feedback)
- Communication: UART (115200@8N1)
- Noise reduction: AEC (Acoustic Echo Cancellation)
- Supply voltage: 5 V
- Current consumption: from 47.7 mA (standby) to 250 mA (operation)
- Operating temperature range: 0°C to 40°C
- Dimensions: 48 x 24 x 16 mm
- Weight: 10.5 g
Contents of the set
- 1x M5Stack Unit ASR
- 1x Grove Cable (20cm)
The set includes a 20 cm Grove cable.
Useful links
| Name | Value |
|---|---|
| Width | 9 cm |
| Height | 13.5 cm |
| Depth | 2 cm |
| Weight | 0.016 kg |
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from €96.75
The full delivery terms are on the page Delivery and payment.
30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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GPSR data
Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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