smart home News - CNX Software - Embedded Systems News

January 26, 2025 by Paisit Wongsongsarn - 19 Comments

Seeed Studio 2-Channel Wi-Fi AC Relay Review – An ESPHome smart switch with power meter function

Seeed Studio 2-Channel Wi-Fi AC Relay Review Home Assistant

We have received the Seeed Studio 2-Channel Wi-Fi AC Relay for review. It is an IoT/Smart Home device featuring a 2-channel relay (wet contact) that operates over a WiFi network, and provides an alternative to SONOFF Smart switches like the SONOFF R2 Dual. The Seeed Studio device is a bit larger and instead of relying on eWelink firmware, it natively supports Home Assistant since it’s pre-installed with ESPHome open-source firmware. Alternatively, if you prefer standalone deployment (without Home Assistant), you can manage it via the web browser. In addition to the basic relay function to control the AC-powered appliances, it also acts as a power meter. This is a good ready-to-use option for Home Assistant enthusiasts who prefer not to assemble their own components. Some practical applications include controlling electrical appliances such as lighting. Let’s dive into the details. Seeed Studio 2-channel AC Wi-Fi Relay unboxing The package we received […]

January 21, 2025January 21, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

M5Stack LLM630 Compute Kit features Axera AX630C Edge AI SoC for on-device LLM and computer vision processing

M5Stack LLM630 Compute Kit is an Edge AI development platform powered by Axera Tech AX630C AI SoC with a 3.2 TOPS NPU designed to run computer vision (CV) and large language model (LLM) tasks at the edge, in other words, on the device itself without access to the cloud. The LLM630 Compute Kit is also equipped with 4GB LPDDR4 and 32GB eMMC flash and supports both wired and wireless connectivity thanks to a JL2101-N040C Gigabit Ethernet chip and an ESP32-C6 module for 2.4GHz WiFi 6 connectivity. You can also connect a display and a camera through MIPI DSI and CSI connectors. M5Stack LLM630 Compute Kit specifications: SoC – Axera Tech (Aixin in China) AX630C CPU – Dual-core Arm Cortex-A53 @ 1.2 GHz; 32KB I-Cache, 32KB D-Cache, 256KB L2 Cache NPU – 12.8 TOPS @ INT4 (max), 3.2 TOPS @ INT8 ISP – 4K @ 30fps Video – Encoding: 4K; Decoding:1080p […]

January 17, 2025January 17, 2025 by Tomisin Olujinmi - 3 Comments

Home Assistant-compatible 60GHz mmWave radar sensor features a built-in IR blaster (Crowdfunding)

The eMotion Ultra is a Home Assistant-compatible 60GHz mmWave radar presence sensor with a built-in IR blaster with a 15-meter range, a brightness sensor, and a temperature/humidity sensor. It is powered by an Armv8-M KM4 microcontroller with built-in Wi-Fi connectivity and is targeted at simplifying complex smart home setups. The eMotion Ultra 60GHz mmWave radar presence sensor module is reported to be able to “cover up to 40 square meters (430 square feet) using just one device.” It can be configured for up to 4 zones with personalized automations for each zone. The exact Armv8-M KM4 module used isn’t named but is likely based on a Realtek RTL8720CM wireless SoC or other Realtek Ameba microcontroller. Potential applications include security management, lighting automation, home climate control, energy management, and rental property management. We have seen similar presence sensors such as the RoomSense IQ, Seeed Studio’s mmWave fall detection kit, SONOFF SNZB-06P, […]

January 15, 2025January 19, 2025 by Paisit Wongsongsarn - 7 Comments

SONOFF MINI-D Review – A Matter-enabled dry contact WiFi switch tested with eWeLink, Home Assistant, and Apple Home

SONOFF sent us a sample of the MINI-D Wi-Fi smart switch with a dry contact design for review. If you’re familiar with the larger SONOFF 4CH Pro model, which features four channels, the MINI-D operates similarly but is smaller in size and comes with the latest software features. The principle of a dry contact is that the relay contacts are not directly connected to the device’s power supply circuit. Instead, the contacts are isolated and require an external power source to supply power to the load. Make it flexible to use the SONOFF Mini-D in various scenarios such as controlling garage doors, thermostats, or high-current electrical devices through a contactor, like water pumps. It can also manage low-power DC devices such as solenoid valves or small electric motors (<8W). Because the power supplied to the MINI-D and the power passed through its relay can come from different sources, it offers […]

January 14, 2025 by Tomisin Olujinmi - 2 Comments

Ditronix’s IPEM PiHat turns your Raspberry Pi into a mains power energy monitor (Crowdfunding)

Raspberry Pi 5 IPEM Power Energy Monitor

The IPEM PiHat is a HAT (Hardware Attached on Top) board for the Raspberry Pi that turns the single-board computer into a mains power energy monitor with four CT clamps. It provides an accurate way to track energy usage in home, office, and solar energy systems and is compatible with single-phase, two-phase, and three-phase electrical systems. The Raspberry Pi-based power energy monitor uses CT (current transformer) cable clamps to sample and measure data which can be used to report and analyze electric energy usage. This data can be used to save and divert energy to reduce costs and inefficiencies. The system is easy to set up and does not require a professional electrician. It uses a CT current clamp clipped over the building’s main power cables and connected to the local mains circuit for voltage and frequency measurement. The add-on board comes in two variants: IPEM PiHat and IPEM PiHat […]

January 9, 2025January 9, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

SONOFF MINI-D – A Matter-compatible WiFi smart switch with dry contact output for garage doors, boilers, etc…

SONOFF MINI D WiFI Smart Switch Dry Contacts

SONOFF MINI-D, also called SONOFF Mini Dry WiFi Smart Switch, is a Matter-compatible smart switch with dry contact output suitable for controlling devices like garage doors, boilers, air conditioners, and other dry contact input equipment, as well as small DC motors (8W max) such as pumps and solenoid valves. It’s designed to support 12-48V AC or DC inputs, handle low-power DC motors up to 8W, and can be wired as Normally Open (NO) and Normally Closed (NC). Like other SONOFF devices, it’s controlled with the eWelink app, but Matter support means it can integrate with other apps such as Amazon Alexa, Google Home, Apple Home, etc… SONOFF MINI-D specifications: Wireless SoC – Espressif ESP32-D0WDR2 (so ESPHome firmware support is likely… eventually) Connectivity – 2.4GHz WiFi Misc LED for network status, pairing mode, and switch type selection Button for ON/OFF, pairing mode, and external switch type selection. Max load 24V DC/2A […]

January 6, 2025January 6, 2025 by Tomisin Olujinmi - No Comments

ZigEasy GEX is a series of ZigBee 3 & DigiMesh coordinators powered by the XBee 3 and XBee SX 868 modules

ZigEasy GEX Zigbee DigiMesh coordinators

The ZigEasy GEX series is a lineup of Zigbee / DigiMesh coordinators and Ethernet gateways based on Digi International’s XBee 3 and XBee SX 868 modules. These devices connect a ZigBee or DigiMesh network to a local Ethernet network or the internet. This makes it easier to create a robust Zigbee/DigiMesh network that can send and receive data from servers. The GEX2400 and GEX2400S devices integrate the Digi XBee3 module which supports Zigbee, 802.15.4, DigiMesh, and BLE and is configured directly with the XCTU software (USB or TCP/IP). The Digi SX 868 module on the GEX868 and GEX868S coordinators only supports DigiMesh. The “S” models include TLS 1.2 and AES-256 encryption for secure internet communication and are ideal for use cases that require internet access. These ZigEasy GEX Zigbee / DigiMesh coordinators can be used in mesh networks for smart homes, monitoring weather conditions, and tracking agricultural data. They can […]

December 31, 2024December 31, 2024 by Sayantan Nandy - 4 Comments

Luckfox Pico WebBee – A Rockchip RV1103 USB & Ethernet development board for web servers, scripting, and Smart Home applications

Luckfox Pico WebBee Rockchip RV1103 development board

Luckfox has launched the Pico WebBee, a Linux-based micro development board powered by the Rockchip RV1103 Cortex-A7 SoC with 64MB of on-chip RAM. Externally, the Pico WebBee resembles a USB dongle enclosed in an ABS case with a USB Type-A port and a 100Mbps Ethernet RJ45 port. Additionally, it includes an internal microSD card slot and a boot button. The board is designed for applications such as lightweight web servers, USB scripting tools, and smart home devices. It’s not quite the first Rockchip RV1103 solution from Luckfox, as we previously covered the Luckfox Pico Mini Arm Linux camera board and the Luckfox Pico Plus camera board with an Ethernet port. The Pico WebBeee is quite different in its form factor (it’s a complete device), and it also lacks a camera interface. Luckfox Pico WebBee specifications: SoC – Rockchip RV1103 G1 CPU – Single-core Arm Cortex-A7 processor @ 1.2GHz + RISC-V […]