Silicon Labs Introduces Bluetooth 5.2 BGM220S SiP and BGM220P PCB Module

Silicon Labs has recently announced two hardware modules based on the company’s BG22 secure Bluetooth 5.2 SoC, namely BGM220S System-in-Package (SiP) measuring just 6x6mm, and BGM220P, a slightly larger PCB variant optimized for wireless performance along with a better link budget for greater range. Both modules can be integrated into products with up to 10-year battery life from a single coin cell. All BGM220S/P variants can support Bluetooth Direction Finding and some of the parts can also handle Bluetooth Mesh Low Power protocol. Silicon Labs BGM220S/P key features: Wireless SoC – Silicon Labs EFR32BG22  Arm Cortex-M33 with DSP instructions and floating-point unit, up to 512 kB Flash, 32 kB RAM, 2.4 GHz radio with TX power up to 8 dBm, and Embedded Trace Macrocell (ETM) for advanced debugging Supported Protocols Bluetooth Low Energy (Bluetooth 5.2) Direction-finding Bluetooth mesh Low Power Node Various MCU peripherals include ADC, up to 25x GPIOs, DMS, PWM, I2C, UART, PDM (mic), etc… See EFR32BG22 specifications …

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Meshtastic Mesh Networking Project Combines ESP32, LoRa and GPS Radio

Meshtastic is a project using off-the-shelf, inexpensive ESP32-based hardware with GPS & LoRa connectivity to create mesh networks helping hikers. skiers, paragliders, or people exercising other outdoor activities communicate short messages such as their GPS location. This allows each member of a private mesh network to see the location and distance of all other members and read/or any text messages sent to a group chat. No phone is required unless you have an ESP32 LoRa board without GPS in which case it would get the GPS coordinates from your phone over Bluetooth. A phone is also needed to send a message. The project currently works on three different boards TTGO T-Beam, TTGO LORA32 and Heltec LoRa 32. The T-Beam is recommended as it sells for around $26 plus shipping and features a 18650 battery holder so you can source the battery easily locally. Just make sure to purchase the right frequency 433 MHz, 865 MHz, 915 MHz or 923 MHz …

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LibreRouter is an Open-Source Hardware Router for Community Networks

Battlemesh (aka the Wireless Battle of the Mesh) is an event that aims at bringing together people from across the world to test the performance of different routing protocols for ad-hoc networks. While BattleMesh v12 took place in Paris in July 2019, I’ve just been informed that presentation videos were now out. There are talks about OpenWrt, mesh networks, and communities, but one talk brought a project I had not looked into details yet. Originated from Argentina, LibreRouter is described as an open-source hardware router designed for community networks that are organized by a group of people such as neighbors in order to share local and other content without a profit motive. LibreRouter LR1 specifications: SoC – Qualcomm Atheros QCA9558 MIPS processor @ 750 MHz System Memory – 128 MB DDR RAM Storage – 16 MB Flash MCU – Microchip ATTiny13 8-bitAVR MCU used as hardware watchdog to handle failed flashes or hardware failures Networking 2x Gigabit Ethernet ports connected …

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Xiaomi Smart Multi-mode Gateway Supports Zigbee 3.0, WiFi, Bluetooth, and Bluetooth Mesh

Xiaomi Mijia Smart Multi-Mode Gateway

Xiaomi has introduced several inexpensive home automation products over the years, often under their Mijia brands with for example a WiFi to IR blaster, a Zigbee & WiFi smart home kit, a smart door lock, or a smart speaker among other products. Recently, the company has launched the Xiaomi Smart Multi-mode Gateway that supports Zigbee 3.0, WiFi, Bluetooth, and Bluetooth Mesh. Xiaomi Mijia Smart Multi-mode Gateway (model ZNDMWG03LM) key features and specifications: Connectivity ZigBee2.0 / ZigBee3.0 2.4GHz Wi-Fi 2×2 MIMO Bluetooth & Bluetooth Mesh Compatible with Apple Homekit Max range – 200 meters (Line-of-Sight) Up to 32 devices Power Supply – 5V/1A Dimensions – 90x25mm Temperature Range – -5℃-50℃ Humidity – 0%-95%RH, non-condensing The gateway can be controlled via Mi Home app running on  Android 5.0 or iOS 12.0 smartphones. It’s compatible with Apple Homekit, Xiaomi Mi AI speaker, and the earlier Zigbee/WiFi kit with Aqara gateway and Zigbee sensors and sockets. I initially thought it might an ESP32 + …

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FreeMesh WiFi 5 Mesh Network Router Runs OpenWrt

FreeMesh W1326 LTE Router Mesh Network Access FreeMesh has launched an open-source mesh router, the WE1326 LTE FreeMesh Router (included are two nodes) that runs OpenWrt open-source operating system. Open Source and “Hackable” Mesh System FreeMesh enters the mesh market with source code posted on Gitlab, a user-hackable/customizable mesh in other words.  FreeMesh uses OpenWrt – the OpenWrt project is a Linux operating system aimed at embedded systems. The focus is on removing the need for a static firmware, where there is only one option for software for the hardware being purchased. The Offerings and Markets The company is targeting the residential market, where most mesh systems are almost double the $150.00 price tag of the FreeMesh. It is reported that there are other ZBT WE826-WD based mesh routers on the market, check out the LinuxGizmos.com article for more information. FreeMesh Specifications  FreeMesh Router CPU Dual Core 880MHz MediaTek MT7621AT ROM SPI 16MB RAM DDR3 512MB Antenna 2x 5dBi 2.4GHz, 2x 5dBi 5GHz, 2x …

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Nordic Semi nRF5340 Dual Arm Cortex-M33 SoC Supports Bluetooth 5.1/Mesh, NFC, Thread & Zigbee

After introducing nRF52833 WiSoC with Bluetooth 5.1 direction-finding support last month, Nordic Semiconductors has now launched another multi-protocol wireless SoC with nRF5340 featuring two Arm Cortex-M33 cores and supporting Bluetooth 5.1, Bluetooth Mesh, NFC, Thread & Zigbee. One of the Cortex-M33 is an application core incorporating  1 MB Flash and 512 KB RAM, as well as Arm CryptoCell-312, Arm TrustZone technology, and Secure Key Storage for the highest level of security, and the other Cortex-M33 core is used for networking functions.  The company also announced nRF5340 PDK to get started with the new WiSoC. nRF5340 Dual-Core Multiprotocol SoC Key features and specifications: CPU Application core  – Arm Cortex-M33 @ 128/64 MHz with 1 MB Flash + 512 KB RAM, 8 KB 2-way set associative cache; CoreMark: 510/255; CoreMark/mA: 65/76 Network core –  Arm Cortex-M33 @ 64 MHz with 256 KB Flash + 64 KB RAM, 2 KB instruction cache; CoreMark: 238; CoreMark/mA: 101 Wireless Protocol support – Bluetooth 5.1 LE …

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Giveaway Week – Particle Mesh IoT Development Kit

Particle Mesh IoT Developer Kit

In early 2018, Particle introduced three nRF52840 Bluetooth 5 boards, also supporting the company’s Particle Mesh technology, and selling for as low as $9. Later that year, the company send me what they call Particle Mesh IoT development kit with several of those boards to get started with their mesh networking solution. That’s what I’m offering as the 6th prize of this giveaway week. With this kit on hand, I wrote a Particle Mesh networking getting started guide showing how to configure the board in Particle.io dashboard, and easily push a new program to multiple Xenon Bluetooth 5 + Mesh boards using an Argon WiFi & Bluetooth 5 + Mesh as the gateway. I’ll give away the full kit shown in the top picture which includes: The Argon kit (ESP32 WiFi + Bluetooth + Mesh) A Grove and Particle Sensor Kit with various modules and a shield An Adafruit Featherwing OLED display and headers Three Xenon (Bluetooth + Mesh) nodes …

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Nordic Semi nRF52833 WiSoC Supports Bluetooth 5.1 Direction Finding, Works up to 105ºC

nRF52833-DK

Nordic Semiconductors had added a new member to their RF52 multi-protocol wireless SoCs with nRF52833 that supports Bluetooth 5.1 direction finding and can operate in a wider temperature range between -40ºC and +105°C. The company also introduced nRF52833 DK development kit for Bluetooth Low Energy, Bluetooth mesh, Thread, Zigbee (802.15.4), and 2.4GHz proprietary applications, and some companies have already announced nRF52833 modules. Nordic Semi nRF52833 Bluetooth 5.1 SoC Key features and specifications: MCU Core – Arm Cortex-M4F @ 64 MHz Memory – 128 KB RAM Storage – 512 KB Flash Connectivity Bluetooth 5.1 @ 2 Mbps/1 Mbps/500 kbps/125 kbps 802.15.4 (Thread/Zigbee) @ 250 kbps 2.4 GHz proprietary @ 2 Mbps / 1 Mbps NFC-A tag TX power – Programmable from +8 dBm to -20 dBm in 4 dB steps Sensitivity Bluetooth 5: -103 dBm at 125 kbps; -98 dB at 500 kbps; -95 dBm at 1 Mbps; -92 dBm at 2 Mbps 802.15.4: -99 dBm at 250 kbps 2.4 GHz: …

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