ESP32-CAM doorbell ESPHOME
Posted on

Privacy-focused DIY video doorbell leverages ESP32-CAM board, ESPHome firmware, Home Assistant

Seeing the lack of privacy-focused video doorbells on the market, Tristam (aka ThatGuy) decided to design his own doorbell with an ESP32-CAM board purchased from Amazon and flashed with ESPHome open-source firmware for easy integration with Home Assistant so there’s no need to rely on third-party cloud services. The DIY design also comes with other off-the-shelf parts with a momentary push button, a 10kΩ resistor, an RGB LED ring light,  M2.5 brass inserts and screws, and a 10-meter micro USB cable all of which can be purchased from Amazon or another shop. He also needed eSUN white PETG filament to 3D print the custom plastic enclosure. The assembly requires two wires to the push button for 3.3V and GPIO 14 pulled to the ground with the 10k Ohm resistor and three wires to the RGB LED ring (5V, GND, GPIO15). Tristam notes the RGB LED ring is optional, and the […]

WiFi HaLow USB adapter
Posted on

ALFA Network HaLow-U – An 802.11ah WiFi HaLow USB adapter supporting AP and STA mode

ALFA Network HaLow-U is an 802.11ah WiFi HaLow USB adapter based on the Newracom NRC7292 chipset and NXP i.MX 6 processor that works both in access point (AP) and client (STA) modes. It delivers long-range WiFi up to one kilometer in the 900 MHz frequency ISM bands and is mostly useful for IP cameras and high-end sensors. The ecosystem around WiFi HaLow (802.11ah) is expanding slowly, but surely, and we previously covered a mini PCIe card, a WiFi HaLow development board, and a gateway kit to extend the range of IP cameras, and also ALFA Network’s AHPI7292S Raspberry Pi HAT that found its way into RAKWireless WisGate Connect gateway. The new HaLow-U USB adapter adds another way to bring WiFi HaLow connectivity to more devices. HaLow-U specifications: SoC – NXP i.MX6 Arm Cortex-A9 processor System Memory – 256MB DDR3 Storage – 32MB NOR flash Connectivity 802.11ah HaLow Newracom NRC7292 chipset […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM
Kontron K3931-N mITX industrial Alder Lake-N mini-ITX motherboard
Posted on

Kontron K3931-N mITX – An industrial mini-ITX motherboard with Intel Alder Lake N-series processor

Kontron K3931-N mITX is a  mini-ITX motherboard based on an Intel Core i3 or Processor Alder Lake N-Series processor designed for fanless industrial applications with features like TSN and wide 8V to 34V DC input, but still only operating in the 0 to 60°C temperature range. The motherboard supports up to 32GB DDR5 memory, SATA, M.2 NVMe and/or M.2 SATA storage, up to triple display setups, and offers dual Ethernet (GbE + 2.5GbE), plenty of USB interfaces,  five serial interfaces, as well as expansion through M.2 sockets, a PCIe slot, and a GPIO header. Kontron K3931-N mITX specifications: Alder Lake-N SoC (one or the other) Intel Processor N50 dual-core processor up to 3.4 GHz with 6MB cache, 16EU Intel UHD Graphics; TDP: 6W Intel Processor N97 quad-core processor up to 3.6 GHz with 6MB cache, 24EU Intel UHD Graphics; TDP: 12W Intel Processor N200 quad-core processor up to 3.7 GHz […]

C2C caberQU USB-C Cable Tester
Posted on

Coin cell-powered boards provide an easy way to test USB-C cables

The A2C caberQU and C2C caberQU boards enable the quick and easy testing of respectively USB-A to USB-C and USB-C to USB-C cables without external hardware. Powered by a CR2032 coin cell battery, the boards apply a voltage to all pins of a cable and measure which ones are connected to the other end. The results can be visualized immediately through various LEDS on the board. The C2C caberQU board comes with a dedicated LED for each of the 24 USB pins and the shield, and it’s possible to test the USB Type-C to USB Type-C cable in several different modes: USB 2.0/1.1 USB Power Delivery USB 3.0/3.1/3.2 Alternate Mode Debug Accessory Mode Audio Adapter Accessory Mode The A2C caberQU board has fewer pins and LEDS for testing USB-A to USB-C cables specifically, but it works the same way. Peter Traunmüller (aka petl) has shot a video showing one of […]

Lo-Fi ESP32-S3 LoRa board
Posted on

Lo-Fi ESP32-S3 board features LoRa module for low-power long-range connectivity (Crowdfunding)

SB Components’ Lo-Fi is an ESP32-S3 board equipped with a LoRa module for low-power long-range connectivity, and the company has also introduced two LoRa USB dongles with either Type-A or Type-C connectors. Lo-Fi specifications: Wireless module ESP32-S3-WROOM-1: SoC – ESP32-S3 dual-core LX7 microprocessor @ up to 240 MHz with Vector extension for machine learning, WiFi 4 & Bluetooth 5 LE/Mesh Memory – 8MB OSPI PSRAM Storage – 8MB QSPI flash PCB antenna Dimensions – 25.5 x 18.0 x 3.1 mm Unnamed LoRa module Tx power of up to 22dBm (160mW) adjustable by software Rx sensitivity of up to -138 dBm ISM bands – 433MHz, 868MHz, and 915MHz Range – Up to 5km range Data rates – 300 bps to 62.5 kbps RoHS compliance External LoRa antenna Display – 1.14-inch TFT display with 240×135 resolution USB – 1x USB Type-C port for programming and power Expansion – 2x 20-pin GPIO headers […]

myCobot Pro 600 robotic arm
Posted on

myCobot Pro 600 Raspberry Pi 4-based robot arm supports 600mm working range, up to 2kg payload

Elephant Robotics has launched its most advanced 6 DoF robot arm so far with the myCobot Pro 600 equipped with a Raspberry Pi 4 SBC, offering a maximum 600mm working range and support for up to 2kg payloads. We’ve covered Elephant Robotics’ myCobot robotic arms based on Raspberry Pi 4, ESP32, Jetson Nano, or Arduino previously, even reviewed the myCobot 280 Pi using both Python and visual programming, and the new Raspberry Pi 4-based myCobot Pro 600 provides about the same features but its much larger design enables it to be used on larger areas and handles heavier objects. myCobot Pro 600 specifications: SBC – Raspberry Pi 4 single board computer MCU – 240 MHz ESP32 dual-core microcontroller (600 DMIPS) with 520KB SRAM, Wi-Fi & dual-mode Bluetooth Video Output – 2x micro HDMI 2.0 ports Audio – 3.5mm audio jack, digital audio via HDMI Networking – Gigabit Ethernet, dual-band WiFi […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
EDATEC ED-GWL2110 outdoor gateway
Posted on

Raspberry Pi CM4-powered outdoor gateway supports GbE, WiFi 5, Bluetooth 5.0, 4G LTE, LoRaWAN, and GPS connectivity

EDATEC ED-GWL2110 is an IP24-rated outdoor gateway based on Raspberry Pi CM4 and supporting Gigabit Ethernet, WiFi 5, Bluetooth 5.0, 4G LTE cellular, LoRaWAN, and GPS connectivity, as well as Power over Ethernet (PoE). The weatherproof gateway also comes with two microSD cards for the OS (CM4 Lite) and data, an HDMI 2.0 output port, a serial console, and features such as an RTC with backup battery, a watchdog, an ATECC608 secure element, and a user-programmable RGB LED. EDATEC ED-GWL2110 specifications: SoM – Raspberry Pi Compute Module 4 SoC – Broadcom BCM2711 quad-core Arm Cortex-A72 processor @ up to 1.5GHz with VideoCore VI GPU System Memory – 1GB, 2GB, 4GB, or 8GB RAM Storage – Optional 8GB, 16GB, or 32GB eMMC flash Wireless – Optional WiFi 5 and Bluetooth 5.0 Storage – Dual micro SD card slot for OS (Raspberry Pi CM4 Lite) and data Video Output – 1x HDMI […]

Orange Pi 3B
Posted on

Orange Pi 3B – A Rockchip RK3566 SBC with an M.2 NVMe/SATA SSD socket, up to 8GB RAM

Orange Pi 3B is a new Rockchip RK3566 SBC that’s like a supercharged Raspberry Pi 3B board with the same form factor, but with a faster processor, up to 8GB RAM, and support for multiple storage options with a microSD card slot, an eMMC flash socket, an M.2 Key-M socket for NVMe (PCIe 2.1) or SATA III SSDs, as well as an SPI flash that should enable features like network boot. The board also features HDMI 2.0 and eDP display intefaces, a Gigabit Ethernet port, a WiFI 5 and Bluetooth 5.0 wireless module, four USB ports, MIPI DSI and CSI connector, and the 40-pin Raspberry Pi GPIO header. It’s powered through a USB-C port taking 5V instead of the micro USB port found in the Raspberry Pi 3B. Orange Pi 3B specifications: SoC – Rockchip RK3566 CPU – Quad-core Cortex-A55 processor @ up to 1.8 GHz GPU – Arm Mali-G52 […]

Boardcon LGA3576 Rockchip RK3576 System-on-Module designed for AI and IoT applications