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The New Pi-Top Modular Laptop includes a 14″ Display, Sliding Keyboard, and Better Cooling

Pi-Top was first launched in late 2014 via an Indiegogo crowdfunding campaign, as a modular DIY laptop powered by a Raspberry Pi board. It’s equipped with a 13.3” LCD screen with 1366×768 resolution, and uses a sliding top cover placed between the display and the keyboard where you could insert your Raspberry Pi with enough space for extra hardware. This is a good week for DIY ARM laptops, as after the launch of Olimex TERES-I laptop yesterday, Pi-Top team has announced a new version of Pi-Top modular laptop with an larger 14″ display with 1920×1080 resolution, a sliding keyboard, and better cooling with a passive cooling unit for the Raspberry Pi 3 board. Pi-Top 2017 laptop specifications: Display  – 14” full HD LCD screen with 1920 x 1080 resolution, 180° screen angle range Keyboard – 105mm sliding keyboard for internal access (US layout) Touchpad – 104x75mm trackpad with Gesture Control […]

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RadioShuttle Network Protocol is an Efficient, Fast & Secure Alternative to LoRaWAN Protocol

LoRaWAN protocol is one of the most popular LPWAN standards used for the Internet of Things today, but some people found it “lacked efficiency, did not support direct node-to-node communication, and was too costly and far too complicated for many applications”, so they developed their own LoRa wireless protocol software called RadioShuttle, which they claim is “capable of efficiently sending messages in a fast and secure way between simple LoRa modules”. Some of the key features of the protocol include: Support for secure or insecure (less time/energy) message transmission, multiple messages transmission in parallel Unique 32-bit device ID (device number) per LoRa member, unique 16-bit app ID (program number for the communication) Security – Login with SHA-256 encrypt password; AES-128 message encryption Air Traffic Control – Nodes only send if no LoRa signal is active on that channel. Optimized protocol –  Message delivery within 110 ms (SF7, 125 kHz, free […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM
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RakWireless RAK831 LoRa Gateway Module is Based on Semtech SX1301 Base Band Processor

We’ve previously covered several products from RakWireless, with a Realtek WiFi IoT board, a WiFi camera board, and a Amazon Alexa compatible audio board. The company has now launched RAK831, a LoRaWAN gateway board powered by Semtech SX1301 base band processor, and working with their RAK811 LoRa node or other compatible nodes. RAK831 LoRA gateway board specifications: Connectivity Semtech SX1301 base band processor with LoRa concentrator IP Frequency bands – 433, 470, 868, or 915 MHz Sensitivity – Down to -142.5 dBm Maximum link budget – 162 dB Output power level – up to 23 dBm Emulates 49 x LoRa demodulators 12x parallel demodulation paths 1x (G)FSK demodulator 2x SX1257 Tx/Rx front-ends high frequencies 2x SX1255 Tx/Rx front-ends low frequencies Range  – Up to 15 km (Line of Sight); several kilometers in urban environment GNSS – Optional GPS support Host Interface – SPI Expansion – 24-pin 2.54mm pitch “DB24” header […]

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Dragino OLG01 Outdoor Single Channel LoRa Gateway Runs OpenWrt, Supports Passive PoE

Dragino Technology, a Shenzhen based startup focusing on the Internet of Things, had already designed LoRa shields & Hats for Arduino & Raspberry Pi boards which can be useful for LoRa nodes, but the company has now launched Dragino OLG01 LoRa gateway running OpenWrt that communicates with nodes over LoRa, and to the cloud using WiFi, Ethernet, or 3G/4G. Dragino OLG01 specifications: WiSoC – Atheros AR9331 MIPS processor @ 400MHz System Memory – 64MB RAM Storage – 16MB flash MCU – Atmel ATMega328P AVR MCU with 32KB flash, 2KB SRAM Connectivity 802.11 b/g/n WiFi with antenna 2x 10/100M Ethernet with support for passive PoE Optional 3G/4G module connected to internal USB socket (TBC) Semtech SX1276/78 LoRa wireless module + SMA connector (antenna not provided) up to 5~10 km range USB – 1x USB 2.0 host port Power Supply – 12V DC power jack or PoE Three models are offered with […]

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Microchip Introduces $11 RN2483 & RN2903 LoRa Modules and $70 LoRa Evaluation Kits for IoT & M2M Applications

LoRa is one of those long range low power WAN standards used for the machine to machine (M2M) and Internet of things (IoT) applications. I already featured a Semtech Lora module here with a line-of-sight range of up to 20 to 30km, and the company has just partnered with STMicro to deploy LoRa solutions, but today, I’m going to have a look at Microchip Lora modules and development kits that I discovered in the company’s Micro Solutions Nov/Dec 2015 publication. The company has launched two modules for the European and North American markets with respectively RN2483 LoRa 433/868 MHz R&TTE Directive Assessed Radio Modem and RN2903 915 MHz North American modem. Apart from the different frequencies, both modules have similar features: On-board LoRaWAN Class A protocol stack Tx/Rx Power RN2483 – 40 mA (14dBm, 868MHz) Tx, and 14.2 mA Rx @ 3.6V RN2903 – 124 mA Tx max, and 13.5 mA […]

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Archos Introduces Free PicoWAN IoT Gateway, Costing 75 Cents Per Year Per Connected Device

The Internet of Things is promising billions of connected devices in the next few years, and while devices at home can usually connect through your broadband connection at no extra cost, devices on the field may need to use cellular connectivity and cheap 2G network are being phased out by Telcos. Weightless, operating over white space frequencies, is one of several solutions proposed to connect IoT objects over longer distances, but Archos has their own project with PicoWAN pico-gateways using LoRa(WAN) protocol which allows for several kilometers range. PicoWAN would plug into your wall socket, connect to your broadband network over WiFI and offer connectivity to various “things” over LoRa. Creating a cellular network is expensive, due to the costs of base stations, but PicoWAN is so cheap, 100 times cheap than traditional base stations, that Archos plans to giveaway 200,000 gateways across Europe to create an IoT network. That […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
Industrial Isolated 8 Ch RS485 to RJ45 Ethernet Serial Server
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Waveshare 8-channel RS485 to Ethernet industrial serial servers work as a Modbus & MQTT gateways, RS485-to-JSON converters

Waveshare has launched the 8-Channel RS485 TO ETH (B) and 8-Channel RS485 TO POE ETH (B) industrial Ethernet serial servers designed for bi-directional transparent data transmission between RS485 and Ethernet networks. The only difference is PoE support, one has it, the other doesn’t, recognizable by their names. It features eight RS485 channels that operate independently, and supports two Ethernet ports (with an optional PoE version compliant with IEEE 802.3af). Key features include working as a serial server, Modbus gateway, MQTT gateway, and RS-485 to JSON converter. It also supports protocols like TCP, UDP, HTTP, DHCP, DNS, and more. It works in the industrial temperature range (-40°C to 85°C), offers power and signal isolation, 2kV surge protection, and comes housed in a durable aluminum alloy enclosure. Additionally, it supports wall-mount or rail-mount installation, multiple power supply methods (DC 7–36V via screw terminal or PoE), and web browser/device library configuration. These features make […]

NextPCB Free ESP32-S3 PCBA
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NextPCB offers free ESP32-S3 PCBA prototypes for original designs (Sponsored)

NextPCB has started offering free PCBA prototypes for PCB designs based on the ESP32-S3 wireless microcontroller following a similar offer for free Raspberry Pi RP2040/RP2350 PCBAs launched in January 2025. The Chinese PCB/PCBA manufacturer’s new “accelerator campaign” targets developers, makers, and researchers who developed their own PCB based on the ESP32-S3 microcontroller. They can get two free PCBA prototypes for the original design. Slots are however limited, and NextPCB will select 20 projects for sponsorship. If selected, you’ll get the following: Free Prototyping – Get 2 free PCBA units, including PCB fabrication, components, assembly, and worldwide shipping (valued up to $500 US). Technical Support – Get expert assistance with manufacturing engineering, design guidance, certification, and production. Personalized Assistance – Receive dedicated one-on-one support throughout your manufacturing journey. The company will prioritize business projects, but hobbyist designs that contribute to the open-source community and showcase interesting applications using ESP32-S3 will also […]

Boardcon CM3588 Rockchip RK3588 System-on-Module designed for AI and IoT applications