An Arduino library for text-to-speech synthesis using PWM or DAC outputs with external amplifier.
TTS is an Arduino library that enables text-to-speech synthesis on microcontroller boards. It converts text strings into audible speech using PWM or DAC outputs paired with an external amplifier circuit. The library supports various Arduino-compatible platforms including ATmega-based boards, ARM processors, and ESP microcontrollers.
Arduino developers and electronics hobbyists who need to add speech output to their embedded projects without complex audio hardware.
It provides a lightweight, platform-agnostic solution for speech synthesis on resource-constrained microcontrollers, with extensive hardware compatibility and straightforward integration requiring only basic external components.
Arduino Text-to-Speech Library
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Supports a wide range of microcontrollers including ATmega328, ARM-based boards, and ESP chips, as detailed in the README's 'Supported Hardware' section.
Allows use of specific PWM or DAC pins per board, such as pins 3, 9, 10 for ATmega328 or DAC pins for ARM processors, offering adaptability for different projects.
Adapted from Webbotlib for resource-constrained environments, making it suitable for memory-limited microcontrollers without heavy overhead.
Requires only a basic amplifier circuit like the LM386, with a provided schematic and non-critical component choices, easing integration.
Necessitates building an external amplifier circuit, as shown in the LM386 diagram, adding complexity, cost, and potential points of failure.
Based on an older implementation, the TTS produces robotic and limited-quality speech, unsuitable for applications needing natural or clear audio.
The README is brief and relies on external blog articles and forums for detailed guidance, which can hinder quick adoption and troubleshooting.