The Boardoza NSP2340T16L Development Board is a high-performance voice recognition and capacitive touch controller module powered by the Nuvoton NSP2340T16L Voice IC. It is designed for voice-assisted and touch-interactive applications, integrating up to 13 capacitive touch pads and a PWM speaker driver for direct audio output.
Equipped with hardware I²C and firmware two-wire interfaces, it communicates seamlessly with host MCUs and supports In-System Programming (ISP) for firmware and voice data updates.
| Front Side | Back Side |
|---|---|
![]() |
![]() |
- Integrated Voice IC: Nuvoton NSP2340T16L for voice assistance and playback applications.
- Capacitive Touch Input: Supports up to 13 capacitive touch pads for interactive control.
- I²C Communication: Hardware and firmware-based two-wire interface for easy MCU integration.
- Direct PWM Audio Output: Drive speakers directly via built-in PWM output stage.
- ISP Support: Update firmware and audio data over I²C with high-speed programming capability.
- Wide Voltage Range: Operates on both 3.3V and 5V, compatible with most microcontrollers.
- Compact Design: Ideal for embedded voice control and sound feedback applications.
Model: Nuvoton NSP2340T16L
Input Voltage: 3.3V – 5.5V
Voltage Input Type: 4-pin Molex 2.50mm header
Interface: I²C / Two-Wire Serial Interface
Functions: Voice playback IC with capacitive touch sensing
Touch Channels: 13-channel capacitive touch inputs
Memory: Embedded Flash (for voice and firmware storage)
PWM Output: PWM output for direct speaker drive
ISP Capability: Supported (via I²C)
Operating Temperature: -40°C ~ +85°C
Board Dimensions: 40mm x 100mm
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Power Supply |
| 2 | SCL | I²C Serial Clock Pin |
| 3 | SDA | I²C Serial Data Pin |
| 4 | GND | Ground |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Power Supply Voltage Level |
| 2 | SELECT | Power source selection input |
| 3 | 3.3V | 3.3V regulated voltage |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | BP02 (I/O) | General input/output pin |
| 2 | INT (O) | Interrupt output to Host MCU |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | PWM+ | PWM positive output for speaker |
| 2 | PWM- | PWM negative output for speaker |
Nuvoton NSP2340T16L Datasheet.pdf
- V1.0.0 - Initial Release
- For any questions or technical assistance, please contact [email protected]
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.



