relay News - CNX Software - Embedded Systems News

April 19, 2024April 19, 2024 by Tomisin Olujinmi - No Comments

SB Components LoRaWAN gateways and nodes are made for Raspberry Pi and ESP32 boards (Crowdfunding)

UK-based hardware developer, SB Components, has designed a new LoRaWAN product series (gateways and nodes) for the Raspberry Pi SBCs, Raspberry Pi Pico, ESP32, and other hardware, based on RAKWireless RAK5146 and RAK3172 modules. The products are available in up to five variants (plus two relay boards) and are built to cater to hobbyists with different needs. They support several LoRaWAN server platforms including The Things Stack, Chirpstack, and Helium, with adaptive spreading factors, coding rates, and bandwidth configurations. The LoRaWAN products include: Gateways – RAK5146 LoRaWAN Gateway HAT and RAK3172 LoRaWAN Gateway HAT for the Raspberry Pi SBCs Nodes – RAK3172 LoRaWAN Module (Powered by Raspberry Pi Pico), Raspberry Pi RP2040 USB Dongle, RAK3172 LoRaWAN Module (powered by ESP32), LoRaWAN Breakout, GatePi LoRaWAN 4-Ch Relay, GatePi LoRaWAN 8-Ch Relay LoRaWAN (long-range wide access network) uses the LoRa modulation technique to transmit data over large distances. In a LoRAWAN network, […]

April 2, 2024 by Jean-Luc Aufranc (CNXSoft) - No Comments

6-channel ESP32-S3-based WiFi relay module offers RS485 interface, supports Raspberry Pi Pico HATs

Waveshare ESP32-S3-Relay-6CH is a 6-channel WiFi and Bluetooth relay module based on Espressif Systems ESP32-S3 wireless microcontroller that also supports RS485 control and comes with headers taking Raspberry Pi Pico HATs adding RTC, CAN Bus, RS232, LoRa, sensors, or other features. The relays are rated 250VAC/30VDC up to 10A, the system take 7V to 36V DC input through a terminal block, and can be programmed with Arduino or MicroPython though a USB-C port. It also features a a built-in buzzer, an RGB LED, and is housed in a DIN Rail-mountable ABS case. Waveshare ESP32-S3-Relay-6CH specifications: Wireless module – ESP32-S3-WROOM-1U-N8 by default MCU – ESP32-S3 dual-core Tensilica LX7 up to 240 MHz with 512KB SRAM Storage – 8MB Quad SPI flash Wireless – 2.4 GHz WiFi 4 and Bluetooth LE 5 u.FL connector for external antenna 6x relays via terminal blocks Rating – Up to 10A 250V AC / 30V DC […]

December 6, 2023December 8, 2023 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Youyeetoo X1 x86 SBC Review – Part 2: GPIO, UART, I2C, SPI, NFC, PoE module, and power consumption

The Youyeetoo X1 x86 single board computer (SBC) with an Intel Celeron N5105 Jasper Lake CPU differs from a typical Intel or AMD mini PC by its range of IOs including SPI, I2C, UART, NFC connectivity, and support for PoE module that you won’t find in a typical computer, and that’s what we will test in the second part of the X1 SBC review along with power consumption. The Youyeetoo X1 SBC is also different from Arm-based single board computers since we can just install any x86-compatible operating system by ourselves, and w don’t need to flash a board-specific image like we would do with Arm SBCs and peripherals such as SPI, I2C or UART may be or may not usable immediately due to lack of supported drivers. We’ve already installed Ubuntu 22.04 on the Youyeetoo X1 in the first part of the review, so in the second part, we’ll […]

June 27, 2023June 26, 2023 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Olimex ESP32-C6-EVB supports WiFi 6, BLE, Zigbee, comes with four relays, four opto-isolated inputs

Olimex ESP32-C6-EVB is an open-source hardware board based on an ESP32-C6 wireless module with 2.4 GHz WiFi 6, Bluetooth LE, and Zigbee connectivity, and offering four relays and four opto-isolated inputs, as well as further expansion via two UEXT connector. So far we had a limited amount of third-party ESP32-C6 boards, with Espressif making their own module and development board available in January, and 01Space launching a tiny ESP32-C6 board in April, a time when a lot of software work was still needed. But the ESP-IDF v5.1 with ESP32-C6 support is nearing release (now RC2), and the Olimex board may mark the start of greater availability of ESP32-C6 hardware with stable/usable firmware. ESP32-C6-EVB specifications: Wireless module – ESP32-C6-WROOM-1-N4 module with Espressif Systems ESP32-C6 single core 32-bit RISC-V processor @ 160 MHz with 2.4 GHz WiFi 6 1T1R with Target Wake Time (TWT) support, Bluetooth LE 5.0, and 802.15.4 radio for […]

February 16, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Control 8 relays with the Raspberry Pi Pico using PicoRelay8 or Pico-Relay-B

Waveshare Pico Relay B with Raspberry Pi Pico board

8086 Consultancy’s PicoRelay8 is a baseboard for the Raspberry Pi Pico (W) board equipped with eight 28V DC / 10A Normally Open relays that be used for all sorts of automation projects, while Waveshare Pico-Relay-B also supports eight relays with both DC and AC loads and comes with some extra features. PicoRelay8 PicoRelay8 board specifications: Supported MCU board – Raspberry Pi Pico or Pi Pico W, and it may also work with “mostly” compatible boards such as the Banana Pi BPI-Pico-RP2040 or BPI-PicoW-S3, WeAct RP2040, and others as long as all GPIO used on the PicoRelay8 are exposed on the same pins. Relays 8x HF3FF/005-1HST relays rated for 28V DC/10A, as well as 10A/250V AC and 15A/125V AC, but the board is not designed to get power from the mains (safety-wise), so it’s only really suitable for DC loads Each relay has a 2-pin terminal block attached to it. GPIO […]

November 17, 2022May 21, 2023 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Arduino Opta is a micro PLC for industrial IoT applications

Arduino has recently announced the Opta micro PLC with industrial IoT capabilities adding yet another solution to the Arduino Pro family. Arduino used to focus on the hobbyist crowd, but with the launch of the Arduino Pro family in 2020 starting with the Portenta H7 board, the company switched its main focus to the more profitable enterprise market. Since then they’ve launched several other boards designed in-house, and last year started collaborating with the introduction of the Arduino WisGate Edge LoRaWAN gateways based on RAKwireless hardware. The Arduino Opta is another one of those collaborations as it was designed together with Finder, who calls their devices PLR (Programmable Logic Relays). Arduino Opta key features and specifications: MCU – STMicroelectronics STM32H747XI microcontroller with 1x Arm Cortex-M7 core up to 480 MHz, 1x Arm Cortex-M4 core up to 240 MHz, 2MB flash, 1MB SRAM (as found in all Portenta H7 boards, and […]

July 4, 2021July 4, 2021 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Relay expansion board for Raspberry Pi includes 4.3-inch touchscreen display (Crowdfunding)

PiRelay 8-Channel Raspberry Pi touchscreen display

There are plenty of multi-relay boards for Raspberry Pi, but since those are often combined with an HMI for control, SB Components decided to offer an all-in-one solution with an expansion board equipped with eight relays and a 4.3-inch touchscreen display connected to a Raspberry Pi via HDMI and USB. PiRelay 8 specifications: Relays 8x relays with 3.3V/5V trigger signal Input – 250V AC/7A, 30V DC/10A Screw terminal blocks NO (Normally Open) and NC (Normally Closed) modes available Isolation – EL357NC optocouplers with current transfer ratio (CTR) of 50-600% at IF=5mA, VCE=5V Display support – Optional 4.3-inch touchscreen display with 800 x 480 pixels resolution, HDMI input for video, USB for touchscreen support. It also comes with a 3.5mm audio jack, an HDMI audio output, a speaker connector, and mounting holes for the Raspberry Pi. 40-pin GPIO header to connect a Raspberry Pi SBC (Pi 4, Pi 3B+, Pi 3, […]

July 28, 2020 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

EMIT ESP32 IoT Development Board Comes with Temperature & Humidity Sensor, 5A SPST Relay (Crowdfunding)

ControlBits EMIT (Environmental Monitoring for the Internet of Things) is a baseboard compatible with DOIT ESP32 DevKit V1 development board and equipped with a temperature and humidity sensor, a relay, a 12-pinGPIO connector, and a MicroSD card. EMIT ESP32 IoT development board specifications: Socket for DOIT ESP32 DevKit v1 board with WiFi and Bluetooth LE connectivity Storage – MicroSD card socket Sensor – AM2302 temperature & humidity sensor with -40° to +80° C and 0 to 99.9 %RH ranges. Relay – 5A SPST relay output with status LED Expansion – 12-pin GPIO header Misc – 2x programmable status LEDs (red & green) Power Supply – 5V via USB on ESP32 board, or external 7-12 V supply via terminal block Dimensions – 81 x 81 mm (PCB only) The board comes with mounting holes so it can be wall-mounted, and an optional enclosure is also available. Some applications for the board […]