Installing Tomcat on macOS 10.14 Mojave

The Servlet 4.0 specification is out and Tomcat 9.0.x does support it. Time to dive into Tomcat 9. [updated on Sep.2.2018] Prerequisite: Java Since OS X 10.7 Java is not (pre-)installed anymore, let’s fix that first. As I’m writing this, Java 1.8.0_181 is the latest version for Java 8, available for download here: http://www.oracle.com/technetwork/java/index.html The JDK installer […]

Micro Python on ESP32 (HUZZAH32)

Adafruit’s HUZZAH32 Feather board is built with the official WROOM32 module: Two CPU cores that can be individually controlled, and the CPU clock frequency is adjustable from 80 MHz to 240 MHz 448 kB of ROM for booting and core functions. 520 kB of on-chip SRAM for data and instructions. 8 kB of SRAM in RTC, […]

Emotion Lamp

The idea behind the Vocal-Emotion Lamp is rather simple: to use a small affordable computer that can continually recognize emotion from the human voice and then visualize the result of the analysis, effortlessly and enjoyably. The implementation of this idea uses the small and inexpensive Raspberry Pi computer, extended with a far-field microphone expansion board. The software that performs […]