Kaiwa vox



– Japanese AquesTalk pico text-to-speech speech synthesizer
– Speaks any Japanese from romaji text format with a robot voice
– Speech, pitch and accent can be changed for nice voice effects
– mikroBUS™ board format
– run on 3.3V or 5V
– Onboard amplifier that can drive an 8-Ohm speaker at up to 1.4 Watts
– Trimpot to adjust volume.
– 3.5 jack or 2 pins connectors output


This vox board is designed to be used in the forthcoming Polaxis new Kaiwa Eurorack Module.
It can also be used in robots, toys or any other speaking devices you may think of.
Thanks to the popular mikroBUS™, this board can be instantly connected with multiple different platforms like the Arduino or the Clicker2.
The onboard amplifier is quite powerful and is just waiting for the speaker to be plugged in !

Breadboard Connection

Code example


This board is developed under the creative common license: CC-BY-SA
The schematic and the code are available here

User Manual



Here is what this demo code sounds like :


mikroBUS™ standard designed by MikroElektonika