Paisit Wongsongsarn, Author at CNX Software - Embedded Systems News

March 20, 2024March 19, 2024 by Paisit Wongsongsarn - 4 Comments

SONOFF POW Ring Review – A WiFi CT Clamp power meter tested with eWelink and Home Assistant

The trend of measuring the energy usage of household electrical devices has become increasingly popular among Smart Home users in the past few years. We have received the new SONOFF POW Ring Smart Power Meter Switch device for review from ITEAD. Unlike SONOFF’s existing energy monitoring devices such as POW Elite, SPM, DualR3, POW3, and POW Origin, this new device, also called POWCT, utilizes a current transformer (CT) to measure the current flow, or total power being consumed. This method provides no physical contact with live wires and reduces the risk during installation. Additionally, it can measure currents of up to 100A, which is significantly higher than previous models. This makes it suitable for measuring electricity usage at the main circuit breaker, energy generated from solar panels, or even for Electric Vehicle (EV) home chargers. The SONOFF POW Ring, which we are testing today, is not only a Smart Power […]

January 30, 2024January 29, 2024 by Paisit Wongsongsarn - 5 Comments

Review of SONOFF SNZB-03P new Zigbee motion sensor with eWelink and Home Assistant

SONOFF continues to release new Zigbee products series including the wireless switches/buttons (SNZB-01P) and temperature and humidity sensors (SNZB-02P) that we reviewed last year. Today, we will review another new sensor, that is the Zigbee 3.0 motion sensor (SNZB-03P) and we’ll need a Zigbee Hub/Bridge/Dongle to receive Zigbee signals to make it work. The technology of this sensor remains PIR, which uses infrared waves similar to before. This is different from the Human Presence sensors that are gaining popularity, which use mmWave (millimeter wave, frequency 3-30GHz). Both types have their pros and cons. SONOFF has also recently released a Human Presence sensor, namely the SNZB-06P which we will review soon. The SONOFF SNZB-03P is suitable for applications where motion needs to be detected (staying standstill won’t work) and places where it is not feasible or practical to run power cables. The latter is advantageous compared to Human Presence sensors because […]

November 30, 2023November 30, 2023 by Paisit Wongsongsarn - 13 Comments

Review of SONOFF BASICR4 Smart Switch and S-MATE2 Smart Remote Control

Sonoff SMATE-2 + BASICR4 automation demo

We’ve received two new devices from SONOFF for testing, namely the BASICR4 Smart Switch and the S-MATE2 Smart Remote Control. For those familiar with SONOFF devices, the Basic series is well-known as it was one of the initial products SONOFF introduced to the Smart Home market. It’s a Wi-Fi switch that can be used for various purposes, including controlling lights, fans, and other electrical devices. The BASICR4 model enhances capabilities while reducing costs compared to its predecessor. The S-MATE2, on the other hand, is the second version of a simple Remote Controller powered by batteries. It wirelessly connects to other SONOFF devices that support the eWeLink Remote Gateway feature, enabling full control within the same ecosystem. This expands its usability across different devices. Let’s delve into the details. SONOFF BASICR4 Introduction The Basic series has been a long-standing Wi-Fi Switch family allowing control of electrical devices through the eWeLink app […]

October 29, 2023October 29, 2023 by Paisit Wongsongsarn - 17 Comments

Review of RaZberry 7 Pro Z-Wave Raspberry Pi HAT and Z-Uno2 Z-Wave board

Z-Wave.Me has sent us a couple of Smart Home devices based on Z-Wave technology for review, namely the RaZberry 7 Pro Raspberry Pi HAT and the Z-Uno2 board. The Swiss company has primarily developed Z-Wave products for years and is a member of the Z-Wave Alliance. For those who are concerned about the issues of signal interference in the 2.4GHz range (WiFi, Zigbee, Bluetooth, and Thread), Z-Wave technology is an excellent choice because it operates on a less congested frequency range of 800-900MHz and the technology has been around for more than 20 years, resulting in a wide variety of Z-Wave devices available in the market, and they can work well together across different brands due to a proper certification process which is another advantage when compared to other protocols. The two devices we received are RaZberry 7 Pro, which is a shield that plugs into the 40-pin GPIO header […]

October 3, 2023October 3, 2023 by Paisit Wongsongsarn - 20 Comments

Review of the first Matter device by SONOFF – MINI Extreme Wi-Fi Smart Switch (MINIR4M)

We have just received the first Matter product from SONOFF for review, which is the Mini Extreme Switch (MINIR4M) model. Its external appearance closely resembles the Mini Extreme Switch Wifi (MINIR4) which we reviewed previously. They have different colors to distinguish between WiFi (Orange) and Matter (Green). In this review, we have experimented with various Smart Home platforms that support Matter, such as Home Assistant, Apple HomeKit, Google Home, and even their own eWeLink app. Let’s see how their operations and features differ to some extent. Quick intro for Matter. We have heard Matter/Thread together in the news. Matter is a control protocol, while Thread is a communication protocol. Both protocols can work together, or separately. Matter can operate on the top of various communication protocols, including WiFi, Ethernet, BLE, or Thread, with subtle differences such as energy efficiency, network, and resiliency. What’s crucial to note is that Matter acts […]

August 6, 2023August 5, 2023 by Paisit Wongsongsarn - 13 Comments

SONOFF SNZB-01P/SNZB-02P Review – Zigbee wireless switch and temperature & humidity sensor tested with Home Assistant

SONOFF SNZB-01P & SNZB-02P Zigbee Review Home Assistant

SONOFF launched their 1st gen Zigbee product about a few years ago, and SONOFF have finally started to upgrade their Zigbee devices, and we received two Zigbee 3.0 devices from SONOFF for review, namely the SNZB-01P wireless switch and the SNZB-02P temperature and humidity Sensor. In a nutshell, their appearance looks more modern, with a round shape compared to the rectangular design of the previous models. Importantly, they are sturdier than before, and the battery capacity has increased almost 2x. As we anticipated, they can be used with other Zigbee Hubs from different brands as well. The main application used with both devices is still, of course, eWeLink, which many people are familiar with (a Zigbee Bridge Hub/Bridge is required). However, this review will focus more on the popular app called Home Assistant, which is widely used globally. SNZB-01P wireless switch After trying it out for a while and comparing […]

May 23, 2023May 23, 2023 by Paisit Wongsongsarn - No Comments

SONOFF TX Ultimate Review – A smart touch wall switch with innovative features

SONOFF has been producing a wide range of new products over the years, and since the beginning of the year, the company introduced various new products and features including the iHost Smart Home Hub local hub which no longer requires cloud connectivity. The one we are going to review is the Ultimate Smart Touch Wall Switch (also known as the SONOFF TX Ultimate). SONOFF stated that they wanted to provide a new experience with their smart switch. Initially, we couldn’t imagine what new experiences a smart switch could offer. When we think of SONOFF, we usually associate it with affordable smart switches that are durable and perform as expected, not stylish or feature-rich devices. However, the SONOFF TX Ultimate comes as a complete package with light, color, sound, and touch. SONOFF has also expanded the touch area, so there’s no need to worry about missing the button while pressing it. […]

April 12, 2023April 11, 2023 by Paisit Wongsongsarn - 8 Comments

SONOFF iHost Review – A future-proof Smart Home Hub for local control

ITEAD has sent us a Sonoff iHost Smart Home Hub for review, and this device seems to be what many SONOFF fans have been waiting for, especially in terms of local control. meaning it can work without an Internet connection. SONOFF is known for its durable devices and good interoperability, but they are still catching up with other companies in terms of local control. Finally, the iHost Smart Home Hub fills the gap. In addition to local control, it also comes with privacy features as data stay local. SONOFF plans to expand its ecosystem by including devices from other brands compliant with standards such as Zigbee 3.0. Furthermore, the iHost Smart Home Hub is more like a platform than just a product, as it has add-ons to add more capability over time. In the future, it can be expanded to support the new “Matter” standard, similar to Home Assistant. The […]