The goal of this post is to create an Alexa skill [1] that controls three LEDs (red, yellow, and green) connected to Raspberry Pi’s GPIO pins. The skill will enable to turn ON/OFF each LED by specifying the color of light and the ON/OFF status via voice command. Prerequisites (parentheses indicate my environment) Raspberry Pi… Continue reading “Controlling LEDs on Raspberry Pi using Voice with Amazon Echo”
This post shows how to update ALSA [1] on Raspberry Pi running Raspbian Stretch. As of writing this post (Dec. 9th 2018) the latest ALSA version is 1.1.7. Setup (parentheses indicate my environment) Raspberry Pi (Raspberry Pi 3 B+) running Raspbian Stretch (Nov. 2018) Speaker connected to Raspberry Pi’s 3.5 mm audio jack … Continue reading “Updating ALSA on Raspbian Stretch”
Controlling LED on Raspberry Pi is pretty easy. This post shows how to turn ON/OFF LEDs using Raspberry Pi’s GPIO pins with Python. Setup (parentheses indicate my environment) Raspberry Pi board (Raspberry Pi3 B+) running Raspbian OS (Stretch with Desktop Nov. 2018 ver) LEDs (Pi Traffic Light) Micro USB cable for power supply Steps… Continue reading “Controlling LEDs with Raspberry Pi GPIO Pins”
This post shows steps to setup Bluetooth Out-Of-Band (OOB) pairing using NFC [1] on Raspberry Pi using nfcpy [2]. The goal is to pair a phone and Raspberry Pi by just touching each other. Prerequisites (parentheses indicate my environment) Raspberry Pi board (Raspberry Pi 3 B+) running Raspbian Stretch (June 2018) NFC USB adapter (Identiv SCL3711) NFC… Continue reading “Setting Up Bluetooth OOB Pairing with NFC on Raspberry Pi”
This post shows steps to setup Wi-Fi Simple Configuration with NFC adapter on Raspberry Pi using nfcpy[1]. The goal is to enable “tap-to-connect” a NFC enabled phone with a Wi-Fi access point [2]. Prerequisites (parentheses indicate my environment) Raspberry Pi board (Raspberry Pi 3 B+) running Raspbian Stretch (June 2018) NFC USB adapter (Identiv SCL3711) NFC enabled… Continue reading “Setting Up Wi-Fi Simple Configuration with NFC on Raspberry Pi”
