We’ve just reported about the preview release of Google Assistant SDK that works on the Raspberry Pi 3, and other boards with a microphone, speakers, and access to Internet. The Raspberry Pi foundation and Google have now made it even easier, as they launched AIY Projects Voice Kit with a Google Voice HAT, a speaker, a stereo microphone Voice HAT board, a button, a few cables, and a cardboard case. You’ll just need to add your own Raspberry Pi 3, follow the instructions to assemble kits, load and setup the software. Once this is all done, you’ll be able to press the top button, asking anything you want to Google Voice, including the weather. Price? Sort of free, as it comes with MagPi 57 magazine, where you’ll also find detailed instructions for the kit. Google AIY Projects got its name from a mix between (DIY) and artificial intelligence (AI), and […]
Google Assistant SDK Turns Your Raspberry Pi 3 into Google Home
Google Home allows you to select music, control your home automation system and more with voice commands, but now you can do the same with a Raspberry Pi 3 as Google released a developer preview (alpha v1) of the Google Assistant API that works on Raspberry Pi 3, and other development boards running Debian or Ubuntu. Functionalities are limited right now, with RPC API and Python sample code, but it only works with English language, and features such as timers & alarm, playing music, news, or podcasts, and precise location are not supported. Location is determined using your IP address only, and if you’re using some third party services / products such as Uber or Hue, you’ll need an actual Google Home device for initial setup. Google has provided instructions to use Google Assistant SDK with Raspberry Pi 3 board. First you’ll need a USB microphone ($5.99 on Amazon), and […]
Karl’s Home Automation Project – Part 4: MQTT Bridge Updated to Use YS-IRTM IR Receiver & Transmitter with NodeMCU
In a previous article, I wrote about an MQTT bridge by 1technophile. I added a DHT temperature and humidity sensor as well as a light sensor. Previously it included a software decoder to decode the IR signal. I never did test the IR transmitter on the gateway, as I didn’t have the parts. But thanks to IC Station, who sent me over a small YS-IRTM hardware based decoder and NodeMCU that I am writing about today. I have replaced the software based version with the YS-IRTM module in the latest update. I found this project challenging. I admit I am a little weak in my programming skills. It was difficult to find documentation but I found a forum talking about this device and basics of how it works. When an IR code is recognized it sends 3 hex codes via serial connection on the transmit pin. To transmit, it expects […]
ESPurna-H is a Compact Open Source Hardware Board with ESP8266 WiSoC, a 10A Relay, HLW8012 Power Monitoring Chip
ESPurna is an open source firmware for ESP8266 based wireless switch as such Sonoff POW, which I’ve been personally using to monitor my office’s power consumption. The developer, Xose Pérez (aka tinkerman), has now developed his own hardware with ESPurna-H board, as existing wireless switches with power monitoring functions would not fit into a gang box. ESPurna-H board specifications: WiFi Module – ESP12 with Espressif ESP8266 WiSoC Relay – Songle SRD-05VDC-SL-C 10A relay with NO and NC connection Power Monitoring – HLW8012 chip as found in Sonoff POW Expansion – 2x 5-pin header with the programming GPIOs, and two connections for external button and LEDs Misc – Reset button Power Supply Input – 100 ~ 240V AC Output – 5V up to 600 mA via Hi-Link HLK-PM01 Safety – Optical isolation between the logic circuit and the relay circuit Dimensions – 50x50x20mm Xose designed the board with Eagle 8.0 and released […]
Cambrionix PowerPad 15S is a 15-Port USB Hub with 2.1A Output, Control API, Serial Console, Power Consumption Monitoring
Many development boards are powered over USB, usually via a micro USB ports, and if you have one board, you’d just use a 5V USB adapter with the right amperage, and it will work fine as long as you have a low resistance USB cable (AWG20 cables recommended for higher loads). But when you start to running multiple boards using power strips with USB adapter start to take space, so USB hubs are much more convenient. However, you need to find one that delivers enough power, is reliable, and possible allows per port power control. The guys at LAVA (Linaro Automated Validation Architecture) are using a lot of boards to validate software developed by Linaro and their members, with the boards having to run 24/7, and they had various misfortunes with USB hubs, but as Dave Pigott reports they’ve now found that USB hub of their dream with a 15-port […]
Karl’s Home Automation Project – Part 3: Adding Light Detection to a Motion Sensor
This is the 3rd part of my Home Automation light project. In the first part, I wrote about basic setup with basic Sonoff Wifi MQTT switches and setting them up. In the second one, we added some 433 MHz motion sensors and a 433 MHz to MQTT bridge. And finally in part 3, we are going to modify the 433 MHz motion sensors to only work when it is dark in the room. Motion Sensor The motion sensor I linked in part 2 is run by a common chip called a BISS0001. We are interested in pin 9. If voltage is below .2v it will not trigger a motion. This solves the problem discussed in part 2, when we have a gloomy day or if blinds are closed etc. By adding an GL5537 LDR (Light Dependent Resistor) shown as R3 in the diagram above, you will achieve the desired effect. […]
Xiaomi 6-in-1 WiFi & Zigbee Smart Home Kit Works with Domoticz Home Automation Software
Xiaomi “Mijia” 6-in-1 smart home (security) kit is an home automation set with a WiFi & Zigbee multi-functional gateway with RGB light and speaker, a wireless switch, a window/door sensor, a human body sensor, temperature & humidity sensor, and a smart socket. The key features of each item are as follows: Multifunctional Gateway Remote Control WiFI and Bluetooth connectivity Built-in speaker Light sensor and 18x RGB LED for notifications potentially trigerred by connected sensors: body sensor, door sensor, IP camera… Online radio support Window / Door Sensor Set Light and rings the gateway when opened or closed Away from home mode: can trigger IP camera recording Power – CR2032 cell battery that should last for 2 years Smart Wireless Switch Programmable one key switch to turn off all lights/applicance, turn on one light at night, etc… Human Body Sensor Motion sensor allowing you to control other devices through the gateway Power […]
Dell Edge Gateway 3000 Series Are Powered by Intel Bay Trail-I SoCs for Automation, Transportation, and Digital Signage
Dell has recently introduced Edge Gateway 3000 series with three models powered by Intel Bay Trail-I processor, running Ubuntu Core 16 or Windows 10 IoT, with each model targeting respectively general-purpose automation, transportation & logistics, and digital signage and retail. The specifications for the three models can be found in the table below. Dell Edge Gateway 3001 Model for General-Purpose Automation Dell Edge Gateway 3002 Model for Transportation & Logistics Dell Edge Gateway 3003 Model for Media & Retail Kiosks SoC Intel Atom E3805 dual core processor @ 1.33 GHz (3W TDP) Intel Atom E3815 single core processor @ 1.46 GHz with GPU @ 400 MHz (5W TDP) System Memory 2 GB DDR3L-1066 Storage 8 or 32 GB eMMC flash Industrial-grade Micro-SD card: 8GB / 16GB / 32 GB / 64 GB Connectivity 1 x 10/100 Fast Ethernet (RJ-45) with PoE (15.4W) WiFi 802.11 b/g/n Bluetooth 4.0 LE Optional ZigBee […]