SpeakerRecognitionLock

Personal project to develop a lock that opens when a specific speaker says "Open Sesame"

• Utilizes STM32L4R5ZI (Arm Cortex-M4) interfacing with microphone, external buttons/LEDs, Bluetooth development board, and ESP8266 WiFi chip
• Audio data relayed over to ESP8266 over WiFi to local server to train model and check inputs

Requirements

• CMake v3.15.3 or greater
• STM32CubeProgrammer
  • Used for flashing STM32
• Various python packages
  • To install: python -m pip install -r requirements.txt

Help

STM32

• To build STM32 code: python workspace/nucleo144/build.py --clean
• To flash STM32 code: python workspace/nucleo144/flash.py --clean
  • May need to update filepath to STM32_Programmer_CLI in flash.py
  • Will automatically flash latest built files

Feather ESP8266

• To load NodeMCU firmware (files located in feather/firmware/) on board: Use NodeMCU PyFlasher 4.0
• To load Lua files on board: nodemcu-tool upload --port=

Host Setup

• To launch Python server: python server.py
• To launch MQTT broker: /usr/local/sbin/mosquitto -c
• To launch local MQTT client: mosquitto_sub -h -p -t -d
  • -d flag used to enable debug messages