relay

Posted on by Debashis Das - 8 Comments on Home Assistant-compatible Makerfabs ESP32-S3-based energy meter features BL0942 energy metering IC

Home Assistant-compatible Makerfabs ESP32-S3-based energy meter features BL0942 energy metering IC

Energy Meter for Home Assistant

The Energy Meter for Home Assistant is an ESP32-S3-based single-phase energy monitoring and control module designed to work with Home Assistant via ESPHome. It measures real-time power and energy consumption and also has a remote on/off control. The device is built around the BL0942 calibration-free energy metering IC, which supports voltage, current, power, and energy measurements with less than 1% error. It operates directly from AC 100–240V, includes an onboard 15A relay for switching loads, and provides electrical isolation for safety. Connectivity is done through USB and Wi-Fi using ESPHome for easy firmware flashing, API encryption, and automatic discovery in Home Assistant. These features make it suitable for smart homes, DIY energy monitoring, smart sockets, home energy dashboards, and automation projects. Energy Meter for Home Assistant specifications: Core module – Espressif Systems ESP32-S3-WROOM-1 SoC – ESP32-S3 CPU – Dual-core Tensilica LX7 up to 240 MHz with vector extension for AI/ML workloads […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on Olimex ESP32-C5-EVB – A dual-band WiFi 6 IoT board with relays, opto-isolated inputs, LiPo battery support

Olimex ESP32-C5-EVB – A dual-band WiFi 6 IoT board with relays, opto-isolated inputs, LiPo battery support

Olimex ESP32-C5-EVB

Olimex ESP32-C5-EVB is an evaluation board built around Espressif’s ESP32-C5-WROOM-N8R4 module with dual-band (2.4/5.0GHz) WiFi 6, Bluetooth 5.0 LE, and 802.15.4 (Zigbee/Thread/Matter) wireless connectivity,  8MB flash, and 4MB PSRAM. The board integrates two relays rated 250V/10A, two opto-isolated inputs, and a LiPo UPS charger and step-up converter. Other features include USB-C ports, a UEXT connector for expansion, and two buttons. It’s one of the first ESP32-C5 boards we’ve seen, after Espressif’s own ESP32-C5-DevKitC-1 development kit, and Wireless Tag’s WT99P4C5-S1 board using the ESP32-C5 as a wireless co-processor to the ESP32-P4 MCU. Olimex ESP32-C5-EVB specifications: Wireless module –  ESP32-C5-WROOM-N8R4 SoC – Espressif Systems ESP32-C5 CPU Single-core 32-bit RISC-V processor @ up to 240 MHz Low-power RISC-V core @ 40 MHz acting as the main processor for power-sensitive applications Memory – 384 KB SRAM on-chip, support for external PSRAM Storage – 320 KB ROM, support for external flash Connectivity Dual-band 802.11ax WiFi 6 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on WiFIRCard – A credit card-sized WiFi and IR-controlled dual relay board (Crowdfunding)

WiFIRCard – A credit card-sized WiFi and IR-controlled dual relay board (Crowdfunding)

WiFiRCard

WiFIRCard is a credit card-sized ESP32-S3 board designed for home automation with two relays and a few GPIOs (headers and screw terminals) that can be controlled over WiFi 4 or an IR (infrared) remote control. The board also features a microSD card slot for data logging or other storage uses, a buzzer for audio feedback, a USB-C port for power and programming, and a few buttons and LEDs. WiFiRCard specifications: Wireless module – ESP32-S3-WROOM-1 with Xtensa® LX7 dual-core 32-bit SoC – Espressif Systems ESP32-S3 CPU – Dual-core Tensilica LX7 up to 240 MHz with vector extension for AI/ML workloads RAM – 512KB SRAM, up to 8MB PSRAM Storage – Up to 16MB flash Wireless – WiFi 4 and Bluetooth LE 5 Antenna – PCB antenna Storage – MicroSD card slot for data logging/storage USB – 1x USB Type-C port for power and programming Relays 2x HLS8L-DC5V-S-C relays 10A/250V AC, 15A/120V AC, […]

Posted on by Debashis Das - 1 Comment on DIN rail-compatible industrial relay board features 4 outputs, 4 analog/digital inputs, RS-485 interface

DIN rail-compatible industrial relay board features 4 outputs, 4 analog/digital inputs, RS-485 interface

ESC3B04 ESP32 C3 Super Mini Relay Board

The ESC3B04 is a compact DIN rail-compatible relay board built around the ESP32-C3 Super Mini module for building Wi-Fi remote switches, voltage monitoring systems, motor control, timed automation, and RS-485-based setups. The board features four 10A relay outputs, four 0–5V/10V analog voltage inputs (also configurable as 12–24V PNP digital inputs), an RS-485 interface, and a push-button input. It operates on a 7–25V DC supply and supports direct installation in control panels or DIN-rail enclosures. ESC3B04 relay board specifications: Wireless module –16-pin ESP32-C3 Super Mini module SoC – Espressif Systems ESP32-C3FH4, single-core 32-bit RISC-V microcontroller @ up to 160 MHz; 400 KB SRAM; 4MB flash USB – 1x USB Type-C port for programming Ceramic antenna I/Os and expansion 4x relays (10A/240VAC) 4x 0-5V/0-10V analog voltage inputs (can be used as 12-24V digital inputs) Serial – RS-485 interface for Modbus or custom protocol communication Misc User button Power LED Power Supply 7-25V […]

Posted on by Debashis Das - 2 Comments on Industrial LoRa remote switches offer 3.5km range, real-time feedback

Industrial LoRa remote switches offer 3.5km range, real-time feedback

CDEBYTE EWD22S series industrial LoRa remote switchs

The CDEBYTE EWD22S series is a set of LoRa-based remote control switches designed for long-range industrial applications. The three key products of the series include the EWD22S-A01TR and EWD22S-D02XR relay modules, and the EWD22S-YK02A handheld remote. The EWD22S-A01TR module handles up to 30A/5kW loads, while the EWD22S-D02XR handles up to 10A/1kW. The EWD22S-YK02A handheld remote can be paired with the relay modules to control them remotely. The remote includes a 9V battery, a high-gain antenna, and multi-color LED indicators for signal confirmation, fault detection, and low battery alerts. The solution relies on LoRa in the 410–493MHz frequency band and offers a range of up to 3.5km in open environments. Protection features include zero-crossing detection, power isolation, and flame-retardant housing. The PCB features a tri-proof coating for protection against humidity, mold, and salt spray. Both relay modules support DIN rail and a screw mounting option for easy installation. EWD22S series specifications: Wireless […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Industrial 6-Channel RP2350 relay module offers RS485 interface, Raspberry Pi Pico HAT support

Industrial 6-Channel RP2350 relay module offers RS485 interface, Raspberry Pi Pico HAT support

Waveshare RP2350-Relay-6CH

Waveshare RP2350-Relay-6CH is a Raspberry Pi RP2350-based industrial 6-channel relay module with an isolated RS485 interface, 7 to 36V DC input via a terminal block, and support for Raspberry Pi Pico HATs. Each relay is isolated and can handle 250VAC/30VDC up to 10A, a USB-C port is used for firmware updates, and the module also includes a buzzer, a few LEDs, as well as Reset and BOOT buttons, with everything housed in a DIN-Rail enclosure. Waveshare RP2350-Relay-6CH specifications: Microcontroller – Raspberry Pi RP2350B CPU Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trustzone, Secure boot OR Dual-core RISC-V Hazard3 @ 150 MHz Either two cores can be used. Memory – 520 KB on-chip SRAM Package – QFN-80 Relay – 6x relays Contact rating – ≤10A 250VAC/30VDC Contact form – 1NO 1NC via screw terminals Optocoupler isolation USB – USB Type-C port for power, data, and firmware flashing Serial Isolated RS485 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on ESP32-P4 Smart 86 Box features 4-inch square touch display for Smart Home and IIoT applications

ESP32-P4 Smart 86 Box features 4-inch square touch display for Smart Home and IIoT applications

ESP32-P4 Smart 86 Box

Designed for Smart Home or industrial IoT (IIoT) applications, Waveshare’s ESP32-P4 Smart 86 Box is equipped with a 4-inch square touchscreen display, an ESP32-C6 module with WiFi 6 and Bluetooth connectivity, and a range of connectors. Two models are offered: the ESP32-P4-WIFI6-Touch-LCD-4B with a MIPI CSI camera connector and a 28-pin GPIO header, and the ESP32-P4-86-Panel-ETH-2RO with a bottom board that features an RS485 serial interface, two relays, a 10/100Mbps Ethernet RJ45 connector, and 6V-30V DC input. ESP32-P4 Smart 86 Box specifications: Main module – ESP32-P4-Core Module Microcontroller – ESP32-P4NRW32 MCU Dual-core RISC-V microcontroller @ 400 MHz with AI instructions extension and single-precision FPU Single-RISC-V LP (Low-power) MCU core @ up to 40 MHz GPU – 2D Pixel Processing Accelerator (PPA) VPU – H.264 and JPEG codecs support Memory – 768 KB HP L2MEM, 32 KB LP SRAM, 8 KB TCM, 32MB PSRAM Storage – 128 KB HP ROM, 16 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on Luckfox-Pico-86-Panel – An 86-type Smart Home controller with a 4-inch display, Ethernet, RS485, two relays

Luckfox-Pico-86-Panel – An 86-type Smart Home controller with a 4-inch display, Ethernet, RS485, two relays

Luckfox-Pico-86-Panel

Luckfox-Pico-86-Panel is a Smart Home controller powered by a Rockchip RV1106G2 or RV1106G63 SoC with 128MB or 256MB DDR3L and equipped with a 4-inch touchscreen display that fits into a standard 86-type junction box. The Linux device supports Ethernet, WiFi 6, and Bluetooth 5.2 LE connectivity and features terminal blocks for 6 to 30V DC input, RS485, and two relays. The controller includes a speaker and microphone for Smart Audio applications, and a USB-C port for programming and debugging. Luckfox-Pico-86-Panel specifications: SoC – Rockchip RV1106G2/G3 CPU – Arm Cortex A7 @ 1.2GHz with an integrated RISC-V co-processor. NPU 4th-gen Rockchip NPU with hybrid quantization (int4, int8, int16) 0.5 TOPS (RV1106G2) or 1 TOPS (RV1106G3) ISP – 3rd-gen 5MP high-performance ISP VPU – 3072×1728 (5M) @ 30fps H.265/H.264 encoding, 16M @ 60FPS JPEG snapshot System Memory – 128MB (RV1106G2) or 256MB (RV1106G3) DDR3L memory Storage – 8GB eMMC flash storage Display – 4-inch 5-point […]

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