ESPHome compatible “Smart Powermeter” supports up to 6 CT clamps

ESP32 Smart PowerMeter

J.G.Aguado’s “Smart Powermeter” is an ESP32-S2 board with a 2.9-inch e-paper display designed to measure power consumption through up to six CT clamps, or Current Transformer clamps, that are each attached to one of the AC lines of a house or appliance. I used an MT87 Digital Clamp Multimeter nearly 10 years ago to easily and safely measure the power consumption of a whole house by simply clamping it on one of the cables outside and reading the results on the display. The Smart Powermeter works in the same way but can perform measurements for up to six devices, and besides seeing the results on the display the ESP32-S2 can also send the data to the cloud or local server for data gathering and analysis using ESPHome or Arduino firmware. Smart Powermeter specifications: Wireless module – ESP32-S2-MINI-1-N4R2 SoC – Espressif ESP32-S2FH4 CPU Single-core 32-bit LX7 microcontroller @ up to 240 […]

2023 Year in review – Top 10 posts, statistics, and what to expect in 2024

CNX Software Happy New Year 2024

It’s the last day and last article of the year, so we will look at some highlights of 2023, some traffic statistics on the CNX Software website, and speculate what interesting developments may happen in 2024. Looking back at 2023 The semiconductor shortage that had happened since 2020 started to fade away in early 2023, and supplies for most electronics components and devices seem to be adequate at this time, so that was a bright spot this year, and hopefully, it will stay that way in 2024 despite geopolitical tensions. We did not have any super exciting new Arm application processors from Rockchip, Amlogic, or Allwinner announced this year, although the Amlogic S928X penta-core Cortex-A76/A55 CPU started to show up in some 8K TV boxes. The launch of the Raspberry Pi 5 SBC with a Broadcom BCM2712 quad-core Cortex-A76 processor was probably the main highlight for Arm on this side […]

SONOFF iPlug S60 – A $10.9 compact WiFi smart socket with built-in energy monitoring function

SONOFF iPlug

SONOFF iPlug S60 is a compact ESP32-C3-based WiFi smart socket with built-in energy monitoring support and available with either Type E/F or Type G prongs for respectively European and British markets, as well as other countries using those types of sockets. ITEAD has manufactured home automation devices that measure power consumption for years, such as the SONOFF POW switch directly connected to the mains or the SONOFF S31 smart socket, but those are/were much larger devices, and the new SONOFF iPlus S60 is fairly small and barely larger than some other smart sockets that lack an energy monitoring function, whiling handling up to 16A or 4,000W at 220-250V. SONOFF iPlug specifications: Wireless MCU – ESP32-C3 RISC-V microcontroller with 2.4GHz WiFi 4 802.11b/g/n  S60TPG Plug type – Type G (UK) Input – 250V, 50/60Hz, 13A max Max load –  3,250 Watts Dimensions – 58 x 58 x 42 mm Weight – […]

Seeed Studio mmWave sensor kit – Part 1: unboxing and first impression with ESPHome and Home Assistant

mmWave Human Detection Sensor Kit Review Home Assistant

Excited to share my first review, written for CNX Software! This time, we’re diving into the Seeed Studio mmWave Human Detection Sensor Kit, which harnesses the power of mmWave radar. The technology I’m particularly interested in for its smart home potential. Therefore, I jumped at the chance when CNX Software offered a product review opportunity. The kit arrived promptly at my doorstep just one week after accepting CNX Software’s offer. Here are my initial findings of the product and its capabilities to replace existing motion detection products.  Unboxing the mmWave sensor kit I opened the DHL box and found the neatly bubble-wrapped mmWave Human Detection Sensor Kit. Alongside the kit, I discovered a bonus: the MR60FDA1 60GHz mmWave Sensor – Fall Detection Module Pro. This higher-frequency module boasts better resolution and even adds a fall detection feature compared to the kit’s included module, the MR24HPC1. However, the MR24HPC1 24GHz mmWave Sensor […]

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 […]

KWS-302WF whole house WiFi power meter supports up to 63A, power control, features a color display

KWS-302WF WiFi power meter

KWS-302WF is an inexpensive WiFi power meter with a color display and power control that is suitable for the whole house since it can handle up to 63A/17kW and supports DIN Rail mounting in a fuse box or cabinet. Installation is made through the neutral and live wires, and the display shows voltage, current, power, energy consumption, power factor, frequency, and temperature through an external temperature probe. Multiple KWS-302WF can be monitored and controlled through a mobile app which may make suitable suitable for apartment buildings as well. KWS-302WF specifications: Voltage range – 170-270V Current range – 0 to 63A Power range – 0 to 17 kW Energy range – 0 to 9999 kWh Timer range – 0 to 999 hours Temperature Range – -20 to +150°C (that is for the temperature sensor, and not the actual operating temperature range…) Frequency Range – 50 to 60 Hz Power Factor – […]

Theengs Bridge BLE to MQTT gateway supports Home Assistant, OpenHAB, Jeedom, NodeRed, and more

Theengs Bridge

The Theengs Bridge is a new WiFi & Ethernet BLE to MQTT gateway running the open-source OpenMQTTGateway firmware, compatible with a range of sensors, and supporting Home Assistant, OpenHAB, Jeedom, NodeRed, and other MQTT-compatible systems. It follows the Theengs Plug smart socket introduced at the beginning of the board with many of the same features (minus the socket part…) but adds Ethernet and an external antenna for improved range, and improves modularity with a Grove I2C connector and mounting holes for a LoRa-E5-based Grove module and a prototyping area where you can solder your own circuitry with DIP components. Theengs Bridge specifications: Wireless module MCU – ESP32 microcontroller with WiFi and Bluetooth Storage – 8MB flash PCB antenna and u.FL antenna connector Connectivity 10/100M Ethernet RJ45 port 2.4 GHz WiFi 4 and Bluetooth LE with 6dBi 50Ohm external antenna Optional LoRa module via Grove I2C connector MQTT protocol Expansion – […]

Giveaway Week 2023 winners announced!

CNX Software Giveaway Week 2023 Prizes

CNX Software’s Giveaway Week 2023 is now over and we’re ready to announce the winners. We offered some of the review samples we tested (or not) in the last year, and like the last two years, we were also joined by RAKwireless who offered two IoT development kits. All items given away are shown in the photo below, minus some accessories, and if you count more than seven you’d be right, as some are kits with multiple items like the GL.iNet GL-S200 Thread Border router which comes with three development boards, and more importantly, we also organized Giveaway Week on CNX Software Thailand for the second year running. We had seven winners on CNX Software: VOIPAC iMX8M industrial development kit – Kraingsak, Thailand TBS7901 mini PCIe DVB-S2X/S2 module  – Frank, Singapore RAKWireless WisBlock IoT Starter Kit – Andy, Russia GL.iNet GL-S200 Thread Border router kit – Augustin, Argentina WCH CH583M-R0-1v1 […]

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