$9.90 SONOFF Zigbee 3.0 USB Dongle Plus works with Home Assistant

Sonoff Zigbee 3.0 USB Dongle Plus

ITEAD has launched a new Zigbee dongle with the Sonoff Zigbee 3.0 USB Dongle Plus powered by Texas Instruments CC2652P wireless MCU which follows the company’s Zigbee 3.0 USB Dongle based on Silicon Labs EFT32MG21 Cortex-M4 microcontroller. The dongle is pre-flashed with Z-Stack 3.x.0 coordinator firmware which enables ZHA in Home Assistant or Zigbee2MQTT compatibility. Sonoff Zigbee 3.0 USB Dongle Plus (ZBDongle-P) specifications: Wireless MCU – Texas Instruments CC2652P SimpleLink Arm Cortex-M4F multiprotocol 2.4 GHz wireless MCU with integrated power amplifier for Bluetooth 5.2 Low Energy, Thread, Zigbee 3.0 Connectivity – Zigbee 3.0 with SMA antenna connector, +20 dBm output gain Host interface – USB port with CP2102N USB to TTL chip Expansion – 5-pin IO header with programming pins Misc – Boot and reset buttons, LED, DIP switch for hardware flow control Power Supply – 5V/100mA via USB port, LDO Dimensions –  87 x 25.5 x 13.5 mm (Aluminum […]

cuplTag battery-powered NFC tag logs temperature and humidity (Crowdfunding)

cuplTag NFC Tag sensor

Temperature and humidity sensors would normally connect to a gateway sending data to the cloud, the coin-cell battery-powered cuplTag NFC tag instead sends data to your smartphone after a tap. CulpTag is controlled by an MSP430 16-bit microcontroller from Texas Instruments which reads and stores sensor data regularly into an EEPROM, and the data can then be read over NFC with the tag returning an URL with the data from the sensor and battery, then display everything on the phone’s web browser (no app needed). cuplTag specifications: MCU – Texas Instruments MSP430FR2155 16-bit microcontroller @ 24 MHz Storage – 2K bytes EEPROM part of NT3H2111 for up to 188 temperature & humidity data points or 376 temperature-only data points Connectivity – Passive NFC, tap-to-read via NXP NT3H2111 NFC tag Sensors – HDC2021  temperature and humidity sensors Measurement interval – 3 minutes to 65535 minutes (Default: 10 minutes) Battery – CR1220 battery […]

BrakTooth vulnerabilities impact closed-source Bluetooth stacks used in chips from Espressif, Intel, Qualcomm…

BrakTooth

BrakTooth is a family of new security vulnerabilities in commercial, closed-source Bluetooth Classic stacks that range from denial of service (DoS) via firmware crashes and deadlocks to arbitrary code execution (ACE) in certain IoT devices. A team from Singapore has discovered 16 new security vulnerabilities after evaluating 13 Bluetooth devices from 11 vendors, but after browsing through the list of certified Bluetooth devices with impacted processors, they estimate it could impact 1400 devices. We can see the list of BrakTooth-impacted SoCs include some familiar names like Intel AX200 (found in many laptops and computers through M.2 cards), Espressif Systems ESP32, Texas Instruments CC2564C, Qualcomm CSR8811/CSR8510, Bluetrum AB32VG1 board (based on AB5301A SoC) which I’ve just reviewed, and more… The good news is that most vendors have either already submitted a patch or working on it. Espressif, Infineon (previously Cypress), and Bluetrum already have released patchsets for their firmware. It’s really […]

TI AM64x 7-core processor is made for PLC’s, motor drives, industrial robots

AM64x GP EVM development platform

Texas Instruments AM64x is a family of 64-bit Arm processors with functional safety designed for Programmable Logic Controllers (PLC), motor drives, remote I/O, and industrial robots. The top-end processor of the family, AM6442, comes with seven cores including two Cortex-A53 application cores, four Cortex-R5F real-time cores, and one Cortex-M4F isolated core. AFAICT, while the documentation is dated January 2021 and TI announced the processor in February in a blog post with a cryptic title, it was only first picked up by Embedded Computing in early May. Besides the processor itself, TI also provides an AM64x starter kit and a full-featured AM64x evaluation kit, and several companies are already preparing development boards and modules as we’ll see further below. TI AM64x processor AM64x key features & specifications: CPU cores Dual-core Arm Cortex-A53 processor @ 1.0 GHz with 256KB L2 shared cache with SECDED ECC, 32KB L1 D-cache, 32KB L1 I-cache Up […]

BLUETTI EP500 is a power bank & UPS for home appliances (Crowdfunding)

Bluetti EP500

Many people are using a power bank to extend the battery life of their mobile device(s), and there are also laptop power banks which higher capacity and support for 12V and/or 19-20V besides the usual 5V. But BLUETTI EP500 & EP500Pro go up a notch as the systems aim at powering multiple home appliances or be used as UPS in case of power failure, or whenever you need to use tools or appliances away from the mains. BLUETTI EP500 & EP500Pro specifications: Control system based on Texas Instruments C2000 dual-core Arm+DSP real-time microcontroller AC Rated Power EP500 – 2000W (peak 4800W less than 500ms) EP500Pro – 3000W (peak 6000W less than 500ms) Power Input EP500 600W max, 100-264V AC via AC input – Charging time around 9 to 10 hours 1,200W max via PV input or T500 input (55-145V DC, 20A) – Charging time around 5 hours with solar panels […]

Zigbee Firmware News – TI Z-Stack 3.0 Zigbee for CC2530 & ptvo Zigbee FW Configuration Tool

Sonoff BASICZBR3 TI Z-Stack 3.0 Zigbee

We’ve been writing about Zigbee more in recent months with either product announcements such as Sonoff ZBBridge WiFi to Zigbee gateway, and open-source software updates such as Tasmota support for Zigbee connectivity. We’ve recently been tipped about Zigbee-related news, namely TI Z-Stack 3.0 Zigbee router firmware port to Sonoff BASICZBR3, and ptvo Zigbee Configurable Firmware v2.4 GUI tool designed to create alternative Zigbee switch and router firmware for TI CC253x based modules and devices TI Z-Stack 3.0 Zigbee Router Firmware on Sonoff BASICZBR3 Kirovilya, a well-known open-source developer and founder of ioBroker open-source home automation software, has ported TI Z-Stack 3.0 Zigbee router firmware to CC2530 and tested it on Sonoff BASICZBR3 with DS18B20 waterproof temperature sensor. This is significant as Sonoff BASICZBR3 is only shipped with TI Z-Stack Home 1.2 Zigbee router firmware and I was told no one else had ported TI Z-Stack 3.0 Zigbee to CC2530 chip […]

MIOTY Silicon Vendor Agnostic, Scalable LPWAN Standard to Take on LoRaWAN, NB-IoT

MIOTY

[April 6th update: The article was updated to reflect Fraunhofer invented the technology] There are plenty of LPWAN (Low Power Wide Area Networks) standards designed for low power, low bitrate and long-range connectivity with the most popular currently being NB-IoT and LoRaWAN. But Texas Instruments has joined other smaller companies (Fraunhofer, Ragsol, STACKFORCE, WIKA…) to form the MIOTY alliance in order to develop and promote a new LPWAN standard operating in the sub-GHz range called MIOTY. Texas Instruments explains MIOTY was born due to a lack of scalability and robustness (interferences issues) of current LPWAN solutions. But just like other similar low power WAN standards, it aims to support long-range while achieving long battery life, but MIOTY is also supposed to help IoT developers mitigate performance degradation in high-node-count networks. MIOTY works in the same license-free bands (868 MHz, 915 MHz …) as LoRa radios with no costs involved to […]

$4 ITEAD CC2531 Zigbee USB Dongle Works with Zigbee2MQTT Out of the Box

ITEAD CC2531 Zigbee USB Dongle

Some of ITEAD Studio’s Sonoff home automation devices include Zigbee connectivity with for instance Sonoff BASICZBR3 smart switch or a version of Sonoff S31 smart socket with integrated Zigbee. Those devices usually work via a Zigbee enabled gateway that could be a router, Raspberry Pi SBC, or mini PC, which ITEAD did not offer so far. But to help people making their own Zigbee gateway the company is now selling a low-cost ($3.99) CC2531 USB dongle preloaded with CC2531ZNP-Prod firmware (Zigbee coordinator firmware), and compatible with Zigbee2MQTT open-source Zigbee to MQTT bridge once plugged into a PC, Raspberry Pi, or another Linux SBC. ITEAD CC2531 Zigbee USB dongle specifications: MCU – Texas Instruments CC2531F256 Zigbee and IEEE 802.15.4 wireless MCU with 8kB RAM, 256kB Flash pre-loaded with CC2531ZNP-Prod firmware for zigbee2mqtt application Host Interface – USB 2.0 male port Expansion – 8-pin unpopulated header with 8 I/Os Debugging – Debug […]