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How to use Sonoff POW with ESPurna Firmware and Domoticz Home Automation System

Sonoff POW is an ESP8266 based wireless switch with a power meter that comes pre-loaded with a closed-source firmware that works with eWelink app for Android or iOS by default. But we’ve also seen Sonoff POW, and other Sonoff wireless switches from the same family, can be flash with open source firmware supporting MQTT (Message Queuing Telemetry Transport) lightweight messaging protocol such as ESPurna, and I initially sent data from Sonoff POW to ThingSpeak via an MQTT broker (mosquitto) to draw some pretty charts. I did that with the switch connected to a lightbulb, but I’ve since installed Sonoff POW in my office to measure the room’s power consumption minus the ceiling light and aircon as shown below. Sonoff cable mechanism is really a pain for hard copper wires, as they are hard to push inside the mechanism, and something come out. I finally managed by it took longer than […]

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How to Install Domoticz Home Automation System in NanoPi NEO and Other ARM Linux Boards

I’ve recently started experimenting with IoT projects, and the first hurdle is to select the hardware and software for your projects are there are simply so many options. For the hardware your first have to choose the communication protocols for your sensors and actuators, and if you are going to go with WiFi, ESP8266 is the obvious solution, used together with your favorite low cost Linux development board such as Raspberry Pi or Orange Pi to run some IoT server software locally or leveraging the cloud. But the most difficult & confusing part for me was to select the server software / cloud services as there are just so many options. I prefer having a local server than something running only in the cloud, as my Internet goes a few hours a month, so I started with a solution combining ThingSpeak with MQTT gathering data from Sonoff power switches running […]

Khadas Edge2 Arm mini PC
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RabbitMax Flex IoT Board for Raspberry Pi Supporting up to Five I2C Sensors Launched on Indiegogo for 20 Euros and Up

RabbitMax Flex is an add-on board, compatible with HAT specifications, for Raspberry Pi 2 /3 boards and other Raspberry Pi models with a 40-pin GPIO header. It includes headers for up to 5 I2C sensors, as well as an RGB LED, a buzzer, a relay, a button, infrared receiver and transmitter, and an optional LCD display, and as we’ve seen in my RabbitMax Flex getting started guide, a nice way to learning about hardware programming using either C or Python, or to used in home automation or IoT projects. The project has just been launched on Indiegogo. RabbitMax Flex specifications: Relay – Songle SRD-05VDC-SL-C supporting 125V/250VAC up to 10A, 30VDC up to 10A Storage – EEPROM with some system information for identification IR – IR LED, IR receiver Misc – Buzzer, Button, RGB LED Expansion Header for LCD character display + potentiometer for backlight adjustment 5x 4-pin headers for I2C […]

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Dragino LoRa/GPS HAT Board for Raspberry Pi Sells for $32

There are several ways to play with LoRaWAN protocol on the Raspberry Pi including RisingHF Discovery kit or Cooking Hacks LoRa Shield for Raspberry Pi, but the latter requires you to spend close to $100 just for the shield, the complete Lora discovery kit costs close to $400. Dragino Tech LoRa/GPS HAT board should be a more cost effective way to get started with LoRa on Raspberry Pi, as it sells for $32 + shipping on Tindie. Dragino LoRa/GPS HAT specifications: Connectivity LoRa Semtech SX1276/SX1278 transceiver @ 433/868, or 915 MHz (Country dependent, pre-configured in the factory) 168 dB maximum link budget. +20 dBm – 100 mW constant RF output vs. +14 dBm high efficiency PA. Programmable bit rate up to 300 kbps. GPS L80 GPS module based on Mediatek MT3339 SoC Horizontal Position Accuracy: autonomous <2.5 m CEP. TTFF@-130dBm with EASY (AGPS): Cold Start <15s,Warm Start <5s,Hot start <1s; […]

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$15 PINE64 64-Bit ARM Single Board Computer is Powered by Allwinner R18 Processor (Crowdfunding)

It looks like Next Things’ C.H.I.P computer with Allwinner R8 processor will soon have a big brother with PINE A64 board powered by Allwinner R18 / A64 quad core Cortex A53 processor, and made by a US start-up also called PINE 64. PINE A64 and PINE A64+, a version with more memory and features, will have the following specifications: SoC – Allwinner R18 (based on Allwinner A64?) quad core ARM Cortex A53 processor @ 1.2 GHz with Mali-400MP2 GPU System Memory PINE64 –  512 MB DDR3 PINE64+ – 1 GB DDR3 Storage – micro SD slot supporting up to 256 GB Video Output HDMI 1.4 up to 4K resolution @ 30 Hz PINE64+ only –  4-lane MIPI DSI connector and touch panel connector Video Codecs – H.265 up to 4K Audio – HDMI, 3.5 mm headphone jack Connectivity PINE64 – Fast Ethernet + optional WiFi & Bluetooth module PINE64+ – […]

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Razberry Board and UZB Dongle Add Z-Wave (Plus) to Raspberry Pi Boards

Z-Wave is one of the low power wireless communication protocols used for automation, and supported, for example, by gateways such as Samsung SmartThings Hub or Vera3. Z-Wave Plus is a certification program used to identify Z-wave 5th Generation hardware platform, allowing a greater range up to 45 meters, 50% improvement in battery life, 250% more bandwidth, and providing a standardized method for Over the Air firmware updates (OTA), among other things. Zwave.me, a startup registered in Switzerland, is specializing in Z-Wave products and solutions, and among their other products they’ve also designed Z-Wave hardware to turn the Raspberry Pi board and other compatible hardware into a Z-Wave gateway. RazBerry module will fit into the 26 or 40-pin header found on Raspberry Pi boards, and comes with the following  specifications: Sigma Designs ZM5202 Z-Wave transceiver module Frequencies – Storage – 32KB SPI flash for network data CPU/MCU Interface – UART (Tx/Rx) […]

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Archos Introduces Free PicoWAN IoT Gateway, Costing 75 Cents Per Year Per Connected Device

The Internet of Things is promising billions of connected devices in the next few years, and while devices at home can usually connect through your broadband connection at no extra cost, devices on the field may need to use cellular connectivity and cheap 2G network are being phased out by Telcos. Weightless, operating over white space frequencies, is one of several solutions proposed to connect IoT objects over longer distances, but Archos has their own project with PicoWAN pico-gateways using LoRa(WAN) protocol which allows for several kilometers range. PicoWAN would plug into your wall socket, connect to your broadband network over WiFI and offer connectivity to various “things” over LoRa. Creating a cellular network is expensive, due to the costs of base stations, but PicoWAN is so cheap, 100 times cheap than traditional base stations, that Archos plans to giveaway 200,000 gateways across Europe to create an IoT network. That […]

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Engimusing DIY Home Automation Modules Are Managed with openHAB installed on ODROID-C1 Board (Crowdfunding)

Engimusing has launched a crowdfunding campaign on Kickstarter for their home automation solutions comprised of tiny modules (20x20mm) based on Silicon Labs Gecko EFM32 MCUs, some sensor modules and a server based on ODROID-C1 board and enclosure pre-installed and configured with openHAB open source home automation software. There are not that many technical details about the EFM32 modules, but they come into two variants: standalone & DF11-10 I/O, the latter allowing you to vertically stack multiple modules. This video shows how DF11-10 IO connectors work. The modules are said to be programmable with the Arduino IDE. The openHAB server is a standard ODROID-C1 board (Amlogic S805, 1GB RAM) with 4GB flash (eMMC or micro SD), and a black enclosure. If you value your money more than your time, and/or already have another computer or board (Raspberry Pi, BeagleBone Black…) that runs Linux, you could also install and configure openHAB by […]

Khadas VIM4 SBC