$79 Digilent OpenScope Open Source Multi-function Programmable Instrument Works over USB and WiFi (Crowdfunding)

Digilent OpenScope is an open source, portable, multi-function programmable instrument used for capturing, visualizing, and controlling analog and digital signals, that works with your smartphone or computer over USB or WiFi, and it can also be used in standalone mode as a development board, like you would use an Arduino or Raspberry Pi board. OpenScope MZ key features and specifications: MCU – Microchip PIC32 MZ (MZ2048EFG124) MIPS Warrior M-class micro-controller @ up to 200 MHz with 2048KB flash, 512 KB RAM External Storage – micro SD slot Wireless Connectivity – WiFi module USB – 1x micro USB for power and programming over FTDI Programming / Debugging – micro USB port, programming header Expansion – 30-pin Fly Wire connector with: 2x scope channels with 12 bits @ 2 MHz bandwidth and up to 6.25MS/s sampling rate 1x function generator output with 1 MHz bandwidth and up to 10MS/s update rate 10x […]

Satechi USB Type-C Power Meter Measures up to 65 Watts

CHARGER Doctor is a popular USB power meter for USB 2.0 ports that can help you check whether your charger delivers the promised amperage, and if you are dealing with USB powered device you can easily measure the power drawn by that device. But we are now in 2017, and USB type C has become more and more popular, and can deliver higher voltages higher than 5V, as well as higher currents. So if you are looking for USB type C power meter, Satechi has you covered. Satechi USB-C power meter key features and specifications: Voltage Range – 4V-20V Current Range – 50mA-10W Max readable Power – 65W Indicates power over time (mAh) and current direction (e.g. charger to laptop, or laptop to phone). USB 3.1 data pass-through supported Dimensions – 6.3 x 2 x 0.8 mm Weight – 8.6 g Beside just measuring power usage, several blogs report this USB-C […]

How to Build and Flash ESPurna Open Source Firmware to Sonoff POW Wireless Switch

ITEAD Studio Sonoff family is comprised of various inexpensive ESP8266 WiFi power switch, and the company sent me two of their latest CE certified models with Sonoff TH16 + external temperature & humidity probe, and Sonoff POW to measure power consumption. I checked the hardware is the first part of the review, and used Sonoff TH16 to control a water pump with the stock firmware and Ewelink Android app in the second part. It works reasonably well, but it relies on the cloud, so if you lose your Internet connection or the service closed, you can’t control the relay manually anymore. Luckily, the UART pins are exposed on Sonoff switches so you can solder a 4-pin header and connect a USB to TTL to flash your own firmware. Please don’t connect Sonoff devices to the mains when programming them, it’s very dangerous, instead the USB to TTL board will power […]

This Video Shows Vulkan API’s Higher Power Efficiency Compared to OpenGL ES API on ARM SoCs

Vulkan was introduced as the successor of OpenGL ES in March 2015, promising to take less CPU resources, and support multiple command buffers that can be created in parallel and distributed over several cores, at the cost of slightly more complex application programming since less software work in done inside the GPU drivers themselves with app developers needing to handle memory allocation and thread management. This was just a standard at the time, so it still needed some time to implement Vulkan, and work is still in program but ARM showcased the power efficiency of Vulkan over OpenGL ES in the video embedded at the end of this post. The demo has the same graphics details and performance using both OpenGL ES and Vulkan, but since the load on the CPU in that demo can be distributed over several CPU cores with Vulkan against a single core for OpenGL ES, […]

Sonoff Pow is a $10.50 ESP8266 WiFi Relay Box that also Measures Power Consumption

In a recent article about Sonoff TH10/TH16 WiFi relays with sensor probes support, we also saw that ITEAD Studio started to have a nice family of home automation products. The company has now added one more item to the Sonoff family with Sonoff Pow support up to 16A/3500W input, and the first to also include power consumption measurements. Sonoff Pow specifications: SoC – Espressif ESP8266 Tensila L106 32-bit MCU up to 80/160 MHz with WiFi Connectivity – 802.11 b/g/n WiFi with WPA/WPA2 support Relay – HF152F-T relay with 90 to 250 VAC input, up to 16A (3500 Watts) Terminals – 6 terminal for mains and load’s ground, live and neutral signals. Programming – Unpopulated 4-pin header for flashing external firmware Misc – LEDs for power and WiFi status, power consumption circuitry with 1% accuracy. Dimensions – 114 x 52 x 32mm Temperature range – -40 ℃ to 125 ℃ The […]

Broadlink MP1 is a $20 WiFi Power Strip with 4 Independent Sockets

There are plenty of WiFi sockets going around such as Broadlink SP2 or Kankun KK-SP3, but in some cases it might be both more convenient and cheaper to get a WiFi power strip, and Broadlink MP1 offers just that with 4 sockets that can be controlled and programmed (timer) independently, and sold for just $19.88 on Banggood. Broadlink MP1 specifications: Connectivity – 802.11b/g/n WiFi, controllable over 3G/4G with smartphone 4 multi-standard (EU/US/AU, but not UK) sockets Power input – 10A/250V (max) Power output – 10A/250V (max) Rated power – 2000W Total Misc – Power button Dimensions –  254mm x 60mm x 32mm; 50cm sockets spacing; cord Length – 1.5m with AU plug (Adapter provided for other countries) Weight – 450g The power strip can be controlled via Broadlink ihc (Intelligent Hone Control) app available for Android and iOS, which lets you independently manually turn on or off or set timers […]

The USB Type-C Authentication Specification Aims to Prevent Damage from Non-Compliant Cables and Adapters

The new USB Type-C standard is great, as cables are reversible so it does not matter if you connect them up or down, it can handle USB 3.1 data speed, as well as carrying video and up to 100W power thanks to USB-C power delivery. In theory all is great, but in practice, many USB-C cables are not compliant, and Benson Leung, a Google employee, has found that many USB-C cable sold on Amazon were not compliant, with even one damaging his Pixel 2 laptop and two USB PD analyzers. His reviews on Amazon, as well as customer complaints, probably lead the company to ban the sale of non-compliant cable or adapter, but to really mitigate the issue, a technical solution was needed, and that’s why the USB 3.0 Promoter Group has defined the Authentication Protocol for USB Type-C as part of the USB Power Delivery 3.0 specifications.   Key […]

Henes Broon T870 is a Kids’ Electric Car Controlled by an Android Tablet

If you ever wanted to played around with an electric car that’s a bit better than an RC toy, but don’t quite have the cash for a full-size Tesla model, Henes has designed an electric card for you your younger kids that’s controlled by an Android tablet and allows both manual and remote driving. Henes Broon T870 specifications: Tablet – 7″ Android 4.4.2 tablet PC smart system with HD resolution display, micro SD, HDMI and audio output ARM Cortex-M3 based main control system Bluetooth remote control Built-in stereo speakers Functioning hood & doors 4 wheel drive with high density urethane tires Spring suspension & shock absorbers Leather bucket seat and seat belt Foot pedal accelerator Bright Headlight / Aux Light / Turn Signal Light / Tail/Brake/BackUp Lights Motors – Dual 24V driving motors Battery – Rechargeable 24V 7Ah battery pack for a little over 2 hours drive, or up to […]

EDATEC Raspberry Pi 5 fanless case