Many years ago, when the first Bluetooth headset started to be sold, it was always a bit funny to hear people apparently talking to themselves while walking in the street. But soon enough, fellow walking zombies may start talking even more on the go, as Google and its partners have launched a new category of headphones with support for Google Assistant starting with Bose QuietComfort 35 II (aka QC35 II). The new headphones are actually an update to QC35 headphones that not only adds Google Assistant support but also noise control settings. It’s not really as cool as it first sounds though. The headphones have an “Action” button to trigger Google Assistant, so no “OK Google” or “Hey Google”, and support is not exactly built-in, meaning you’ll still need to pair the headphones with your smartphone over Bluetooth. You’ll then be able to hear your incoming messages and calendar automatically […]
TV030 is a $10 DVB-T Tuner for your Android Smartphone or Tablet
We’ve previously covered tuners or small boxes that allow you to watch free-to-air TV on your smartphone or tablet with products such as PT115m/PT115e or DTV Link box, but I’ve just noticed GeekBuying added TV030 DVB-T tuner that connects to the micro USB port of your smartphone, and sells for just $10.99 shipped. TV030 TV mobile stick specifications: Signal: 75 Ohm Digital TV Aerial Input Punctured Codes: 1/2, 2/3, 3/4, 4/5, 5/6 and 7/8 Receive Frequency: DVB-T: 474 ~ 858 MHz (UHF) Input: DVB-T Bandwidth: 6/7/8 MHz Dimensions – 27 x 18 x 7mm; antenna: 210mm long max Weight – 14 grams The stick sells with an antenna, and a CDROM apparently containing the Android apk for EZTV app. It requires Android 4.1-5.0 or greater with the following minimal requirements to watch: SD TV – Cortex A8 @ 800 MHz with 512MB RAM, 20 MB flash, 800×480 display resolution HD […]
uCAN CAN Ethernet Converter and Logger is Based on Orange Pi Zero Board
The CAN bus is a serial communication protocol used in automotive and automation applications. The guys at ucandevices.pl have designed a solution around Orange Pi Zero board that allows you to log CAN bus data or act as a bridge between the CAN bus and Ethernet or WiFi. They call it “CAN Ethernet converter, CAN Logger, Linux CAN computer”. Sorry, no shorter name that I could find… uCAN (pronounced micro CAN) CAN Bus board specifications: Main Board – Orange Pi Zero with Allwinner H2+ quad core cortex-A7 processor, 256 MB RAM Network Connectivity – 10/100M Ethernet, 802.11 b/g/n WiFi Can Bus – 2-pin terminal block; support for CAN version 2.0 support Power Supply – DC 5V/2A via micro USB port Dimension – 50 x 50 x 20 mm The device comes pre-load with Debian distribution provided by Armbian plus various CAN tools. The getting started video below shows uCANTools web […]
Mictrack MT600 4G GPS Tracker Supports Traccar, OpenGTS, and Other GPS Tracking Platforms
Cellular GPS trackers have been around for a few years, but so far mostly 2G or 3G GPS trackers with products like Ping, Particle Asset tracker, and many other models selling on Aliexpress. 4G GPS tracker have been less common. However, recently we’ve seen platforms like Wio LTE and AutoPi that could handle GPS tracking over LTE connectivity, and another alternative would be Mictrack MT600 that ready-to-use solution to track your car or other vehicle with GPS and 4G. Mictrack MT600 hardware specifications: GNSS U-BLOX7 GPS Chip GPS sensitivity -162dBm Channel – 56 Positioning Accuracy – 10m Cold start: 30s; warm start: 15s; hot start: 1s SMA antenna connector Cellular Connectivity Qualcomm 4G LTE chip MT600-A model (North America): 4G FDD LTE: 700/850/1700/1900MHz 3G UMTS: 850/1700/1900MHz GSM: 850/1900MHz MT600-C model (Asia): 4G FDD LTE: 900/1800/2100MHz 4G TDD LTE: 1900/2300/2500/2600MHz 3G UMTS: 900/2100MHz GSM: 900/1800MHz MT600-E (Australia/Asia/Europe) 4G FDD LTE: 800/850/900/1800/2100/2600MHz 3G […]
LimeSDR Mini is a $135 Open Source Hardware, Full Duplex USB SDR Board (Crowdfunding)
LimeSDR open source hardware software defined radio was launched last year with the promise of integration with Ubuntu Snap Store allowing to easily download and install various radio implementations such as LTE, WiFi, Bluetooth, LoRa, etc… It was offered for $200 and up as part of a crowdfunding campaign, but Lime Microsystems is back on CrowdSupply with a cheaper and low end version aptly called LimeSDR Mini.LimeSDR mini specifications: FPGA – Intel Altera Max 10 (10M16SAU169C8G) with 16K Logic gates, 549 KB M9K memory, 2,368 KB user flash memory Storage – 4 MB flash memory for data; 2x128KB EEPROM for RF transceiver MCU firmware and data RF Lime Microsystems LMS7002M RF transceiver Tx & Rx SMA connectors Frequency range – 10 MHz to 3.5 GHz RF bandwidth – 30.72 Mhz Sample Rate – 30.72 MSps with 12-bit sample depth Power Output (CW): up to 10 dBm USB – 1x USB […]
Review of Koogeek BP2 Bluetooth Blood Pressure Monitor
Koogeek BP2 is an FDA approved smart blood pressure monitor that connects over Bluetooth to your Android or iOS smartphone, or WiFi to the cloud. The company sent me a sample for evaluation, so let’s get started right away. Koogeek BP2 Unboxing The device is sent in a cardboard package with Koogeek brand… and some more derails about the specifications on the bottom of the package. I asked the company to confirm about FDA approval, and they told me to look for K134029 on the FDA website, which lead me to this document testing Shenzhen Belter Health Management and Analysis ePA-46B, and comparing it to the results of Omron HEM-7200-Z (BP742) with the conclusion being that: The Belter Blood pressure meter (ePA-46B) is substantially equivalent to the predicate devices. Koogeek BP2 is the same as Belter ePA-46B, but just rebranded, and with a different mobile app. In the package will find […]
Hantek PSO2020 is a $53 USB Oscilloscope Pen
I previously covered IkaScope & Aeroscope oscilloscope probes that are both portable and connect wirelessly to your mobile device or computer over respectively WiFi or Bluetooth. The former has slightly better specifications and sells for 300 Euros, while the latter goes for $200 US with 20 MHz bandwidth and 100 MSps capabilities. Several people mentioned it was more expensive than they were prepare to pay, but I’ve been informed about another portable solution: Hantek PSO2020 oscilloscope pen with about the same key specifications as Aeroscope 100A, except it relies on a USB port instead of a wireless connection. This also means it does not need a battery, and sells for much less at $53.20 including shipping. Hantek PSO2020 specifications: Analog Bandwidth – 20 MHz Sample Rate – 96 MSps Host Interface – USB 2.0 port Input Range – +/-50 V range Input Sensitivity – 20mV/div to 50V/div Offset Range – […]
WizziKit is a DASH7, LoRa and Sigfox Wireless Sensor & Actuator Network Kit
Over the last few years, I’ve written several article about LoRaWAN, Cellular IoT, and Sigfox based long range low power IoT solutions. DASH7 is another LPWAN (Low Power Wide Area Network) standard that operates on the same 868 and 915 MHz ISM bands as LoRa and Sigfox, but has much lower power consumption, and the cost of a shorter range up to 500 meters, instead of the 5+km associated with LoRa or SigFox. The DASH7 Alliance Protocol (D7A) is an Open Standard, and if you want more details you can download version 1.1 of the specifications on DASH7 Alliance website. I’m writing about DASH7 today thanks to an article on ST blog about Wizzilab’s Wizzikit, an evaluation kit and framework for DASH7 with a gateway, and several nodes that can also optionally support LoRaWAN and Sigfox protocols. The kit is comprised of the following items: WizziGate GW2120 Ethernet/Wifi/Dash7 gateway – based […]