Sony Spresense Extension Board Shipping:2-4 Weeks * [MIDI Tutorial](https://learn

* [MIDI Tutorial](https://learn

Each port is labeled with clear silkscreens

If you have a non-current-limiting driver such as the motor shield/hat/feather we found 5V DC power worked well to power the stepper controller

* [VLSI website](http://www

Sony Spresense Extension Board Shipping:2-4 Weeks * [MIDI Tutorial](https://learnSpresense is a compact development board based on Sony's power efficient multicore microcontroller CXD5602. It allows developers to create IoT applications in a very short time and is supported by the Arduino IDE as well as the more advanced NuttX based SDK. The Spresense Extension Board has the following connectors in addition to Arduino Uno compatible pin sockets: 3. 5mm headphone jack MicroSD card ( not included , but we carry 'em in the store )