$1.80 CH551 Mini Development Board Features 8-bit C51 Core, USB Interface, and I/Os

Tweet Last year, WCH (Nanjing QinHeng Corp.)’s launched a CH55x family of microcontroller based on an 8-bit C51 core with a USB interface, and extra I/Os depending on the selected part number Electrodragon is now listing a tiny USB development board based on CH551 for $1.80, and the chip itself sells for as low as 1.60 RMB (0.25 USD) on Taobao. Specifications: MCU – WCH CH551 8-bit C51 micro-controller USB – 1x USB type A port I/Os – 18 through holes exposing all I/Os from the MCU including GPIOs, USB, 3.3V, 5V GND Misc – On-board power led, user LED (P3.0) Power – 5V via USB port (or pin?) You won’t need an external hardware – such as a USB to TTL board – to program the boards since the MCU supports USB. To enter into programming mode,  short connect the two pins in the middle of the board (DL) with tweezers. Electrodragon has documentation on their Wiki,  not only …

Scrcpy Open Source Software Let You Control an Android Phone via a Windows, Mac OS, or Linux PC

Tweet Have you ever wished you could control or mirror your Android smartphone using your computer? Scrcpy, a free and open source program by Genymotion may fit your needs, and works on Windows, Mac OS or Linux. You just need to install (or build) a program on your host computer, connect your phone via USB, switch to developer mode, enable USB debugging, and run the program which will automatically install the server (a jar file) on your phone, which does not need to be rooted. The easiest way to try is with Windows since the developers already provide pre-built binaries, but I installed it on Ubuntu 16.04 instead since it is the operating system I use daily. Some of the packages in Ubuntu 16.04 are a bit old so it took me a couple of hours to successfully install it, and I’d recommend going with Ubuntu 17.10 or 18.04 daily build if you can. First let’s create a working directory, …

ORICO 1088USJ3 Multi-Bay SATA to USB3.0 Enclosure Supports up to Ten 3.5″ Hard Drives

Tweet USB expansion drives and multi-bay NAS devices are both very common form of storage which have different applications, but I had never thought or seen multi-bay USB expansion drivers until I came across ORICO NS200U3 “2-bay USB 3.0 hard drive dock” on GearBest (~$82) that can handle two 3.5″ hard drives. This piqued my interest, so I went to ORICO website looking for models supporting more hard drives, and found ORICO 1088USJ3, a 10-bay USB 3.0 to SATA enclosure that can provide up to 80TB of local storage with 8TB drives. ORICO 1088USJ3 specifications: Storage – 10x SATA III slots up to 6 Gbps for 3.5″ HDD / SSD drive (up to 8TB per drive) Output Interface – USB 3.0 device port up to 5 Gbps Power Supply – 100-240V AC 50-60Hz Protection – Over-current, over-voltage, short circuit, overheat, and power leakage. Dimensions – 389(L) x 203(W) x 501(H)mm (aluminum enclosure) Weight – 11.16kg The box is said to …

EasyVolts USB Dongle Outputs 0-24V DC, Exposes UART, GPIO/PWM, RS-485 Signals

Tweet A while ago, I wrote about USBminiPower, a USB power supply with 3.3V, 5V, and one variable DC output up to 14.3V adjustable with a rocker switch, and equipped for a 4-digit LED display showing current intensity and voltage. But recently, I was made aware of another USB power supply – EasyVolts USB dongle – that supports 0 to 24V DC, and also exposes either UART pins, or RS-485 signal, plus two GPIO/PWM pins. EasyVolts specifications: USB – 1x USB port for power, communication Power Supply function: Input voltage: 5V from USB port Output voltage: 0-24V Max output current: 1A Max output power: ~2.4W (e.g. 24V/0.1A; 3.3V/0.55A) Voltage resolution: <50mV Current resolution: <2mA I/O expansion 4- pin to be used as UART (Tx/Rx) or RS-485 + 2x GPIO/PWM UART – speed: 300-230400 bit/sec; resistance of Tx/Rx pins: 300 Ohm PWM – Base frequency: 240kHz.; frequency division configuration: 1-65535; duty cycle resolution: 0.5%. Logic levels – 3.3V When the device …

Maiwo K104c is a $9 2.5″ SATA Drive Enclosure with a USB Type C Cable

Tweet USB type C receptacles are found in more and more devices, but if you have older accessories or peripherals they likely use micro USB, and USB type A cables or plugs. One way to work around this problem is to get adapter, for example, I purchased a micro USB to USB Type C adapter last year, but this morning I’ve come across a USB type C hard drive enclosure, something I had not seen before, probably because I did not look for it. Maiwo K104c enclosure specifications: Designed for 2.5″ SATA drives (HDD/SSD) up to 9.5mm thick USB type C to SATA 3.0 interface using JMS567 chipset UASP protocol support (aka USB attached SCSI) OS agnostic so it should work with any operating systems Dimensions – 21.50 x 2.70 x 1.20 cm Weight – 130 x 79 x 17mm JMicron JMS567 chipset is the same as used in NanoPi NEO NAS Kit v1.2.  Several sites claims it’s a USB …

USBCEE Tiny-PAT Board Helps Testing USB-C Power Adapters (Crowdfunding)

Tweet USB power delivery allows for up to 100W charging using 20V @ 5A through a USB type C port, and the specifications also mandate supports for various voltages between 5V and 20V. However, some USB-C power adapter that not be fully compliant with the specifications, potentially risking to damage your device. USBCEE Tiny-PAT board has been created in order to test such power adapters to make sure they are compliant with USB PD 2.0/3.0 specifications. Tiny-PAT board features and specifications: Supported USB Spec Version – PD 2.0 / PD 3.0 Max Voltage: 24 V Max Current: 5 A Max Power: 100 W USB type C receptacle Misc – Fail and Pass LEDS, S4 mode button, through holes for VBUS & GND Power Consumption: ~10 mA (may vary based on voltage) Dimensions – 35 x 20 mm By default, the board will test all power rules advertised by the power adapter, measure the voltage (VBUS), and show whether the test …

Silicon Power C50 3-in-1 USB Flash Drive Comes with micro USB, USB Type C, and USB Type A Ports

Tweet USB flash drives are convenient ways to carry data around, and load on other computers. They are usually based on USB type A found on computers, laptops and even TVs, , but if you plan to connect it to your smartphone or tablet, which may only comes with micro USB or USB type C port, you’ll need an OTG adapter to connect the USB flash drive. It works, but if you don’t like to look for the adapter each time you can want to connect, Silicon Power C50 USB flash drive offers a solution as it includes all three types of connectors. Sorry no mini USB port 🙂 Specifications of Silicon Power OTG Mobile C50 flash drive: Capacity – 32GB, 64GB, or 128GB Interfaces – USB Type-A (USB3.1 Gen 1), Micro-B (USB 2.0), Type-C (USB3.1 Gen 1) Dimensions – 41.7 x 7.0 x 15.0mm Weight – 5.2g Operating Temperature – 0° C -70° C Certification – CE/FCC/BSMI/Green dot/WEEE/RoHS/KCC The …

Checking Out Dodocool DC30S USB type C Hub with USB 3.0 Ports, Power Delivery, HDMI Output, and Card Reader

Tweet I reviewed Vorke Z3 Android mini PC last month, the first mini PC I’ve received with a USB type C port capable of handling video output too. I could see support for dual HDMI displays in the firmware, but at the time I did not have a USB type C hub with HDMI output. But Dodocool sent me their DC30C USB type C hub so I’ve finally been able to give a try. Dodocool DC30S Specifications USB Input – 13 cm USB 3.1 Type-C cable USB Outputs – 3x USB 3.0 type A ports up to 5 Gbps; 1x USB 3.1 Type-C PD charging port Video Output – HDMI port Storage – SD & Micro SD card reader Dodocool DC30S Unboxing First the package which gives basic info about the USB hub. The device comes with a warranty registration card, and a multi-language user manual. One side comes with the SD and micro SD card slots with LED indicator, …