SONOFF MINIR4 review – A Tiny WiFi Smart Switch tested with eWelink app/web, and R5 controller

SONOFF MINIR4 wiring

In this post, we’ll review the SONOFF Mini Extreme, also known as MINIR4, WiFi smart switch based on ESP32 wireless MCU by installing it into a wall-mounted light switch box and controlling it with both the eWelink mobile app for Android and the SONOFF R5 scene controller. SONOFF MINIR4 Installation We’ve already gone through the specifications, unboxing, and teardown in the announcement, so I’ll get straight to the installation part. Note this review was done with a light switch “box” (about 11x6cm) in Thailand, so your mileage may vary. The first challenge is that contrary to the similarly-sized SONOFF ZBMINI Extreme Zigbee switch, the MINIR4 WiFi switch requires a neutral cable, and most lights in Thailand are wired without a neutral wire, so I had to get the neutral wire from the outlet switch box underneath. When I call those “boxes” there are really holes in the wall here… Wiring […]

Review of SONOFF ZBCurtain Zigbee Smart Curtain Motor

SONOFF ZBCurtain Review

Recently, Sonoff has released a new Zigbee product – called ZBCurtain – that turns your ordinary curtains into smart curtains. With this product, you can experience new benefits when using your curtains, such as automatic opening/closing, remote control through your mobile device, or setting up advanced automation to control your curtains based on factors such as temperature, humidity, or even using input from the other sensors. These smart capabilities provide benefits for your home or workplace, such as increased safety, energy savings, and convenience. The Sonoff Zigbee Curtain Motor (or ZBCurtain for shorts) can be integrated with your existing ordinary curtains, transforming them into smart curtains that can be controlled remotely via your smartphone, your voice commands, or even from a traditional remote controller. ZBCurtain Unboxing Within the package, we can find a wireless remote control, main motor units with a 3.5-meter long cable, and mounting brackets to attach the […]

Mini review of the Raspberry Pi Global Shutter Camera

Raspberry Pi Global Shutter Camera

Raspberry Pi Trading has just launched the 1.6MP Raspberry Pi Global Shutter Camera which can capture rapid motion without introducing artifacts usually experienced with rolling shutter cameras such as the earlier Raspberry Pi Camera modules, including the latest Raspberry Pi Camera Module 3. The company sent me Raspberry Pi Global Shutter Camera sample together with a 16mm C-mount lens for review, and I’ll report my experience after going through the specifications of the new camera. Raspberry Pi Global Shutter Camera specifications Sony IMX296LQR-C Sensor Resolution: 1.58 megapixels (color) Sensor size: 6.3mm sensor diagonal Pixel size: 3.45μm x 3.45μm Output – RAW10 Back focus length of lens – Adjustable between 12.5 and 22.4mm Lens standards – CS-Mount or C-Mount (C-CS adapter included) Integrated IR cut filter (can be removed permanently if needed) Tripod mount – 1/4”-20 Dimensions – 38 x 38 x 19.8mm (29.5mm with adapter and dust cap) Weight – […]

Review of micro:bit XGO Robot Kit – An educational robot dog with a Bluetooth joystick

micro:bit XGO robot kit review joystick

ELECFREAKS micro:bit XGO Robot Kit is a robotic dog designed for robotics education. It moves realistically and acts like a real pet dog, and can help teach various technology concepts related to mechanical engineering, electronics, programming, and artificial intelligence (AI). The kit support both the BBC Micro:bit V1 and V2 boards which can be programmed with Microsoft MakeCode, Python, the Arduino IDE, and other languages. The XGO robot is compact and can be easily used on a desk or table. The robot is made of aluminum metal coated with a beautiful anodized finish. Each leg has 12 high-quality digital servos moving each joint, 3 on each side, totaling 12, helping the robot dog to move smoothly and flexibly. The robot can be controlled with apps, a joystick, and up to 19 ready-made postures, such as holding hands, looking for food, sitting down, squatting, etc… Content of the XGO robot kit: […]

Beelink SER6 Pro mini PC review – Windows 11, Ubuntu 22.04, and USB4

Beelink SER6 Review

Beelink upgraded their earlier SER6, which used an AMD Ryzen 5 6600H processor with integrated AMD Radeon 660M graphics, and released the SER6 Pro which has a faster AMD Ryzen 7 6800H processor with much more powerful integrated AMD Radeon 680M graphics. Beelink kindly sent a SER6 Pro unit for review however since receiving the mini PC, Beelink have ‘refreshed’ the processor to use an AMD Ryzen 7 7735H also with AMD Radeon 680M graphics, and called it the SER6 Pro Refresh. As a result, this review looks at Windows performance which should be indicative for both versions, together with a quick look at running Ubuntu and also a more detailed look at the USB4 port which is a new inclusion to Beelink’s mini PCs. Update: you may be interested in the review of the Beelink SER6 Pro 7735HS – in Windows 11 only – as we’ve also received it […]

GHLBD Android calculator mini review – An Allwinner A50-based Android 9.0 calculator

Calculation Funciton

I found this GHLBD calculator on a platform selling second-hand electronic products. Three labels of this product appeal to me: “Calculator”, “Android 9.0” and “Allwinner A50“. If you only look at the appearance, this calculator is not much different from that of ordinary calculators, but the Android operating system is running on it and the screen tells me that it is definitely not an ordinary calculator. When I bought it, I only spent 69 RMB ($10 US). I didn’t really have a use case for it, but curiosity drove me to buy one. I decided to introduce it and disassemble it to check out the hardware design. Function demonstration of GHLBD calculator Press and hold the ON and OFF keys on the keyboard to turn on the calculator. The Allwinner A50 processor icon and Android logo show up in the boot animation. Here, you can preliminarily confirm that the promotional content […]

NanoPi R6S RK3588S mini PC & router review – Part 2: Ubuntu 22.04

NanoPi R6S Ubuntu 22.04

NanoPi R6S is both a mini PC and a router based on Rockchip RK3588S processor. I received some samples in November and started the NanoPi R6S review with OpenWrt/FriendlyWrt quickly testing the 2.5GbE interfaces and routing with iperf3, and it worked pretty well. But using a system with an octa-core Cortex-A76/A55 processor and 8GB RAM as an OpenWrt router only feels like a waste of resources, so I wanted to install a more versatile operating system – Ubuntu 22.04 – for further testing. My struggles installing Ubuntu 22.04 on NanoPi R6S FriendlyELEC provides various images on the Wiki either booting from an SD card, installing from a MicroSD to the eMMC flash (aka eFlasher imagers), or flashing through USB with Windows tools. I like the eFlasher images since the OS runs from the internal eMMC flash and no special tools are needed. I had just used the FriendlyWrt eFlasher image, […]

ZBMINI Extreme Zigbee smart switch review with Home Assistant

Sonoff ZBMINI Extreme Review Home Assistant

SONOFF has rolled out smart switches in the market for years, and for each iteration, they make their devices smaller and more capable. The latest ZBMINI Extreme Zigbee Smart Switch or ZBMINIL2 or ZBMINI Extreme for shorts is what we will review today. Take note that there are both Zigbee and Wifi versions that come with the same form factor, we will walk through the Zigbee version first and we will review the WiFi version – SONOFF MINI Extreme (MINIR4) – later on. The ZBMINI Extreme is designed to work without a Neutral (N) line. Those who have difficulty wiring the N line to the switch will definitely love this. In many locations, the Neutral (N) line is not wired and would require a lot of work and expenses for cabling. SONOFF ZBMINI Extreme eases that challenge since there’s no need for the Neutral wire at all. This review will […]