esphome News - CNX Software - Embedded Systems News

May 1, 2025May 1, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

XIAO 2-channel Wi-Fi AC Energy Meter runs ESPHome on ESP32-C6 module, comes with two 100A CT clamps

Seeed Studio’s XIAO 2-channel Wi-Fi AC Energy Meter is an ESP32-C6 (XIAO ESP32-C6) powered power meter with two independent CT clamp (Current Transformer clamp) connectors to safely measure power consumption when placed around one of the wires from an AC cable. We reviewed the SONOFF POW Ring single-channel WiFi CT clamp power meter with eWelink and Home Assistant last year, and before that, we also covered models supporting multiple CT clamps, up to 16 clamps with the Emporia Vue Gen 2 energy monitor. The XIAO 2-channel Wi-Fi AC Energy Meter offers a middle ground with support for two CT clamps measuring up to 35A each. XIAO 2-channel Wi-Fi AC Energy Meter specifications: Wireless module – XIAO ESP32C6 board Wireless MCU – Espressif Systems ESP32-C6 CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory – 512KB SRAM, 16KB low-power SRAM Storage – […]

April 24, 2025 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

ESPuno Pi Zero ESP32-C6 board takes up to 60V DC input, offers RS-485 interface (Crowdfunding)

ESPuno Pi Zero is a Raspberry Pi Zero-sized board based on an ESP32-C6-MINI-1 WiFI 6, BLE, and 802.15.4 wireless module and an SMPS that allows up to 60V DC input via a 2-pin terminal block. The board also features two USB-C ports, one connected to the ESP32-C6 and the other to a CH343P USB-to-serial chip, a 40-pin GPIO header, a Grove connector, a 3-pin terminal block for RS-485, DMX, Profibus, and a few buttons and LEDs. ESPuno Pi Zero specifications: ESP32-C6-MINI-1-N4 or ESP32-C6-MINI-1U-N4 SoC – Espressif Systems ESP32-C6 single-core 32-bit RISC-V clocked up to 160 MHz 320KB ROM, 512KB SRAM, low-power RISC-V core @ up to 20 MHz CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory/Storage – 320KB ROM, 512KB SRAM Wireless – 2.4 GHz WiFi 6, Bluetooth 5.0, and 802.15.4 radio (for Thread/Zigbee) Storage – 4MB flash Antenna ESP32-C6-MINI-1-N4 […]

April 13, 2025April 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Battery-powered Seeed Studio IoT Button features ESP32-C6 SoC, supports ESPHome or Zigbee firmware

Seeed Studio IoT Button is an inexpensive ESP32-C6 button powered by a rechargeable 18650 battery and designed to easily and quickly control Smart Home devices over WiFi 6 or Zigbee wireless protocol. It will be especially handy to Home Assistant users since the device is pre-flashed with ESPHome firmware for easy integration (over WiFi), and the company also provides a Zigbee firmware for Zigbee Home Assistant (ZHA) integration. The hardware is pretty basic with a button, three LEDs, and a USB-C port for charging the replaceable 18650 battery. Seeed Studio IoT Button specifications: SoC – ESP32-C6FH4 CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory – 512KB SRAM, 16KB low-power SRAM Storage – 320KB ROM, 4MB flash Wireless – 2.4 GHz WiFi 6, Bluetooth 5.0 LE/Mesh (somehow not used here), 802.15.4 radio for Zigbee 3.0 and Thread. Matter compatible. USB – […]

April 4, 2025 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Seeed Studio XIAO 7.5″ ePaper panel supports ESPHome firmware, Arduino programming

Seeed Studio XIAO 7.5″ ePaper Panel interfaces an XIAO ESP32-C3 USB-C board and mainly targets the Smart Home market with support for ESPHome, but the monochrome ePaper display is also programmable with the Arduino IDE for a wider range of applications. The display offers a resolution of 800×400 and includes a 2,000mAh battery good for three months per charge with updates every 6 hours. Seeed Studio says the display can operate in the -40°C to 85°C temperature range, so it would be suitable for outdoor use as long as it’s not exposed to rain or dust. The USB-C port of the ESP32-C3 module and the Boot and Reset buttons are easily accessible for charging the display and programming it. XIAO 7.5″ ePaper Panel specifications: Wireless module – XIAO ESP32C3 SoC – Espressif Systems ESP32-C3 CPU – Single-core RISC-V microcontroller @ 160 MHz Memory/Storage – 400KB SRAM, 384KB ROM, 4MB flash […]

March 11, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Smart Home News – ESPHome 2025.2.0 Firmware, Home Assistant gets Matter certified, and (some) ChromeCast devices hit troubles

Smart Home news ESPHome Firmware Home Assistant Matter ChromeCast

When I wrote about the Home Assistant 2025.3 release last week, it was pointed out to me that ESPHome firmware had its own release on February 19th, and in other Smart Home news, Home Assistant got Matter certified, and some ChromeCast devices temporarily stopped working which impacted video/audio streaming and integration with Google Home. Let’s have a quick look at all three pieces of news. ESPHome 2025.2.0 firmware ESPHome 2025.2.0 was released on February 19 implements audio components improvements with support for new components/hardware for better support of Espressif’s S3-Box products, new speaker components for advanced functionality when using Voice Assistant, a new speaker media player component for announcements and music streams, and a mixer speaker component to combine the two streams. The new release also supports alpha-blending images when using LVGL, and the Online Image Component was updated to add support for both BMP and JPEG image formats. It […]

February 28, 2025 by Debashis Das - 1 Comment

ESP32-C6-based Wi-Fi relay board features six 10A relays, supports Home Assistant, 3D printed enclosure

Seeed Studio’s XIAO 6-Channel Wi-Fi 5V DC Relay is a compact ESP32-C6 Wi-Fi relay board built around the XIAO ESP32C6 module which supports Wi-Fi 6, BLE 5.0, Zigbee, and Thread connectivity. Designed for remote control and automation, the device comes with pre-installed ESPHome firmware and features six independent relay channels, each supporting 10A at 30V DC or 250V AC, making it ideal for simultaneously controlling multiple DC or AC devices. The board also has two grove ports for sensors and actuators, making it suitable for home automation, industrial control, energy management, smart agriculture, and other applications. XIAO 6-Channel Wi-Fi 5V DC Relay Board Specifications Main module – XIAO ESP32C6 SoC – ESP32-C6 CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory – 512KB SRAM, 16KB low power SRAM Storage – 320KB ROM, and 4MB flash Wireless – 2.4 GHz WiFi 6, Bluetooth […]

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 […]

December 31, 2024January 2, 2025 by Debashis Das - 1 Comment

GGBEE RMW002 WiFi AC smart switch supports Alexa, Google Assistant, and Cozy Life app

The GGBEE RMW002 is a mini WiFi AC smart switch designed to make your appliances smarter. It supports a voltage range of 100-240V AC and a maximum current of 16A/20A. With built-in WiFi, the switch connects to the Cozy Life app for easy remote control of your appliances. It also supports voice commands through Amazon Alexa and Google Assistant allowing for hands-free operation. Additional features include group control, countdown timers, and dual-control wiring options. The device has very similar from-factor and features to that of a SONOFF ZBMINIR2 or SONOFF MINI Extreme (MINIR4M) but there are significant price differences if you are comparing the RMW002 to any SONOFF devices since the GGBEE switch is quite cheaper. GGBEE RMW002 specifications: SoC – Boufallo Lab BL602 32-bit RISC-V wireless SoC Connectivity – 802.11 b/g/n Wi-Fi 4 via BL602 Input Voltage range – 100-240V AC (50/60Hz) Max Current: 16A or 20A depending on […]