Sonoff S31 Smart Socket Review – Power Consumption Monitoring with eWelink Android App

Today we are looking at the Sonoff S31. It is another device in the Sonoff line by ITEAD Studio. Similar to the Sonoff POW, you can see power usage but on the S31 you can keep historical data up to 100 days. This time around I am using it with the standard firmware, and will not be flashing the popular MQTT Tasmota firmware. Specifications per ITEAD website: Max. Current: 16A Voltage Input: 90~264V AC, 50/60HZ Wireless Standard: 2.4GHz, 802.11 b/g/n Receive Sensitivity: 802.11b: <-84dBm(11Mbps); 802.11g: <-68dBm(54Mbps) Output Power: 802.11b:16±2dBm; 802.11g:13±2dBm Security Mechanism: WEP/WPA-PSK/WPA2-PSK Encryption: AES/TKIP Working Temp: -20 °C ~ 75 °C Working Humidity: 10%-80% Product Dimensions: 75.7×39.7x32mm Gang: 1 Weight: 135g Certification: FCC (Download) Sonoff S31 Unboxing & Teardown Taking the S31 apart is rather easy but I did not take it fully apart for fear of breaking it. Just pop the power button off the left side. Then 2 plastic pieces slide off to reveal screws. eWeLink I …

Gumstix Chatterbox is a Customizable, AVS-Ready Development Platform based on Toradex Colibri i.MX7 SoM

There are several official Amazon Voice Service (AVS) development kits, and we’ve already covered a few of them with the likes of Allwinner 3-Mic Far Field AVS Development Kit or Intel Speech Enabling Developer Kit, but you can also design your own board conformant to Amazon’s Alexa Voice Service functional design guide. That’s exactly what Gumstix has done with Chatterbox carrier board for Toradex Colibri i.MX7 system-on-module powered by NXP i.MX7 Arm Cortex A7 processor. Designed in Geppeto, the board includes a 2.5-Watt speaker driver, an on-board microphone, and Line IN and headphone jacks, as well as WiFi, Bluetooth and Ethernet for connectivity.   Gumstix Chatterbox specifications: Colibri iMX7 SO-DIMM socket Storage – microSD card slot Audio – On-board microphone; 2.5W speaker driver; Line-in & headphone jacks Connectivity – Gigabit Ethernet, 802.11 b/g/n WiFi & Bluetooth 4.1 LE (TI WiLink8 WL1831) with u.FL antenna connector USB – 1x micro USB port, 1x USB host port Debugging – 1x micro USB …

Amlogic A113X1 6-Mic Far-Field Devkit is Designed for Amazon Alexa

Allwinner unveiled their SoC-Only 3-Mic Far-Field Development Kit for Amazon AVS last week, but they are now joined by another low cost silicon vendor as Amlogic has just launched their own A113X1 far-field dev kit officially support for Amazon Alexa Voice Service (AVS). The development kit is powered by Amlogic A113X SoC designed for such applications with “an audio pipeline that supports high fidelity audio with soft DSP algorithms for both frontend and backend processing”.   Amlogic A113X1 far-field devkit specifications: Mainboard SoC – Amlogic A113X quad core Cortex A53 processor System Memory – 512MB DDR3 Storage – 512 MB NAND flash Connectivity – SDIO WiFi/BT (AP6356S) Audio SPDIF_IN jack LINE_IN/LINE_OUT jacks 2x Audio headers (MIC_Connector & SPK_Connector) USB – 1x micro USB 2.0 OTG port Expansion – SPI header Misc – 6x ADC Keys, IR_IN/IR_OUT, UART Interface (RS232), LEDs Power Supply – 12V/2A Microphone board 6x digital microphones in a circular array Texas Instruments PCA9557PWR IO expander Speaker board …

$129 Allwinner R18 based 3-Mic Far Field Amazon AVS Development Kit in the Works

Allwinner-SoC-Only-3-Mic-Far-Field-Dev-Kit-for-Amazon-AVS

Several companies are already offering development kits for Amazon AVS (Alexa Voice Service), but as we’ve seen in the past, those are rather expensive with far-field kits such starting at $349 with kits such as Synaptics AudioSmart 4-Mic Development Kit, or Intel Speech Enabling Developer Kit, and hands-free kits being barely cheaper at $299 and up. But there will soon be a cheaper solution, as Allwinner and SinoVoIP (aka Banana Pi) are working on “SoC-Only 3-Mic Far-Field Dev Kit for Amazon AVS” that includes 3 microphones, and works without special DSP, relying instead on Allwinner R18 processor’s audio codec and capabilities. Allwinner SoC-Only 3-Mic Far-Field Dev Kit for Amazon AVS (aka R18-AVS-EVK) specifications: SoC – Allwinner R18 quad-core Cortex-A53 processor @ 1.15GHz with Mali400MP2 GPU System Memory – 1GB DDR3 Storage – 8GB eMMC flash Video Output – HDMI Audio – 6x Microphones, 2x AEC, AUX and headphone output; GMEMS voice recognition algorithm Connectivity – Dual band WiFi, Bluetooth 4.0 USB …

$17 Sonoff S31 Wireless Smart Socket Includes Energy Monitoring Function

ITEAD Studio has just launched another Sonoff Smart Home product with Sonoff S31 WiFi smart socket with energy monitoring. Just like Sonoff switches, light bulbs, and their other products, the device can be controlled using eWelink app for Android or iOS, and supports integration with Amazon Alexa, and Google Assistant. It should be noted that the company only provide a US plug version for now, and so far, there’s no Wiki link, so while it’s likely based on ESP8266 or ESP8285 like their other Sonoff devices, it may not be designed to be easily hackable, although I suspect the electronics may be similar to Sonoff POW switch (TBC). Sonoff S31 hardware specifications listed by ITEAD: Voltage Input – 90~264V AC, 50/60HZ Max. Current – 16A Max. Power – 4200W (Note package above reads max load: 220V/10A) Gang – 1x US type with ground Connectivity – 802.11 b/g/n WiFi with support for WEP/WPA-PSK/WPA2-PSK Misc – Power button, LEDs Dimensions – 75.7×39.7x32mm …

Intel Speech Enabling Developer Kit Works with Alexa Voice Service, Raspberry Pi 3 Board

We’ve known Intel has been working on Quark S1000 “Sue Creek” processor for voice recognition for several months. S1000 SoC is based on two Tensilica LX6 with HiFi3 DSP, some speech recognition accelerators, and up to 8x microphones interfaces which allows it to perform speech recognition locally. The solution can also be hooked to an application processor via SPI, I2S and USB (optional) when cloud based voice recognition is needed. Intel has recently introduced their Speech Enabling Developer Kit working with Amazon Alexa Voice Service (AVS) featuring a “dual DSP with inference engine” – which must be Quark S1000 – and an 8-mic array. The kit also includes a 40-pin cable to connect to the Raspberry Pi 3 board. Intel only provided basic specifications for the kit: Intel’s dual DSP with inference engine Intel 8-mic circular array High-performance algorithms for acoustic echo cancellation, noise reduction, beamforming and custom wake word engine tuned to “Alexa” 6x Washers 3x 6mm screws 3x …

Amazon Introduces Echo 2, Echo Plus, Echo Connect, and Echo Spot Alexa Devices

Beside their “all-new” Amazon Fire TV 2017, Amazon has made a bunch of other announcements mostly related to their Alexa services with four new or updated Echo devices:  the “all-new” Echo, the Echo Plus, Echo Connect, and the Echo Spot. 2017 Amazon Echo (aka Echo 2) The new second generation of the Alexa based Echo has a new smaller design, improved sound with Dolby processing, and a lower price at just under $100. Some of the key features include: Speakers – 2.5″ woofer and 0.6″ tweeter Connectivity Dual band 802.11 b/g/n WiFi for streaming music from Amazon Music, Spotify, Pandora, etc…, controlling smart devices Bluetooth LE Audio 3.5mm audio jack 7-mic array using beamforming technology and enhanced noise cancellation. Improved wake-word (“Alexa”) detection Various designs with 6 different fabrics Dimensions – 148 x 88 x 88 mm Weight – 821 grams The Echo can make free calls to the US, Mexico and Canada, control smart home devices such as the …

$69.99 Amazon Fire TV 2017 TV Box Supports 4K HDR-10 Video Playback

Amazon has just announced a new Fire TV TV box with support for 4K Ultra HD and HDR (High Dynamic Range), and a cheaper price, as it is selling for $69.99 on Amazon US with delivery scheduled to start on October 25, 2017. Amazon Fire TV 2017 specifications: SoC – Amlogic S905Z quad core ARM Cortex-A53 processor @ 1.5 GHz with penta-core Mali-450MP3 GPU System Memory – 2GB RAM Storage – 8GB flash Video & Audio Output – HDMI 2.0a up to 4K 60 Hz with HDCP 2.2, Doby Atmos support Video – HDR-10. H.265, H.264 Connectivity – Dual band 802.11 b/g/n/ac WiFi + Bluetooth 4.1 LE USB – 1x micro USB port for power (and optional USB Ethernet adapter) Dimensions – 65 x 65 x 15 mm Weight – 87 grams Amazon just mentions “Amlogic Quad-core 1.5GHz | ARM 4xCA53” for Fire TV processor, so it first assumed it could either be S905X, S905D or S905L since all support 4K60, …