usb News - Page 17 of 30 - CNX Software

June 22, 2021June 24, 2021 by Saumitra Jagdale - 4 Comments

PC-based Logic Analyzers Comparison: PGY-LA-EMBD vs Logic16 Pro vs SP209

Comparison of PGY-LA-EMBD vs Logic16 Pro vs SP209

Building an embedded system requires multiple devices to communicate with the central processor, generally through an SPI or I2C bus. If your system is quite complex and things don’t work out as expected, then a Logic Analyzer might save your day. So, choosing the correct Logic Analyzer is critical to a successful project. This article gives a PC-based Logic Analyzers comparison, and we’ll compare products from three companies: Prodigy Technovations, Saleae, and Ikalogic. Factors to keep in mind while selecting a Logic Analyzer Before we dive into the comparison part, we should be aware of a few points based on which we’ll compare them. Logic analyzers come with a certain number of channels. The higher the number of channels is, the costlier is the product. So, select the number of channels appropriately depending on the size of your project. Several other technical specifications should also be considered, which are listed […]

June 7, 2021 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

Keyboard also serves as USB-C hub with 11 ports from audio jack to VGA

I’m not sure who needs this, but if you’d like a USB-C hub with a QWERTY keyboard and a good variety of ports, you’ll be glad QGeeM Keyboard and USB-C hub/dock station exists. The device comes with one HDMI port, one VGA D-Sub connector, 3x USB 3.0 ports, a memory card reader, an RJ45 port for Ethernet, an audio jack, and USB-C port with USB-C PD 3.0 support up to 100W. This may look like a keyboard PC, but nope, it’s just a USB-C hub that happens to have a built-in keyboard. QGeeM Keyboard and USB-C hub key features: Storage – MicroSD and full-size SD/SDXC card readers (multiplexed) up to 2TB Video Output HDMI 1.4 port up to 4Kp30, VGA D-Sub connector up to 1920×1080 @ 60 Hz Dual display setups up to 1080p60 per display Mirroring and extended display modes supported Audio -3.5mm audio AUX jack Networking – Gigabit […]

May 27, 2021 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

USB Type-C Specification 2.1 allows up to 240W Extended Power Range (EPR)

Many devices have switched from a Micro USB port or a power barrel jack to the USB-C port in recent years, as the latter allows for higher currents, and up to 100W power input in USB PD (Power Delivery) compliant systems. While 100W will be more than enough for most devices, more power-hungry devices or systems still need a power brick, for example, gaming laptops and mobile workstations. But the USB Type-C specification 2.1 aims to change that by upping the maximum power to 240W. As noted by Benson Leung in a Reddit Thread the part of the specification that handles the 240W power is the EPR (“Extended Power Range”) that defines requirements for cables, chargers, and devices: 3.11 Extended Power Range (EPR) Cables 3.11.1 Electrical Requirements Extended Power Range cables have additional requirements to assure that these cables can deliver the full defined voltage and current range for USB […]

April 14, 2021 by Jean-Luc Aufranc (CNXSoft) - No Comments

Check LoRaWAN deployments on the go with WisGate Developer Base USB dongle

RAKWireless just had their “Big Tech Bloom” event services they announced many new LPWAN products ranging from WisDM fleet management system, OpenWrt based Wisgate OS, new industrial LoRaWAN gateways like WisGate Edge Lite 2, their first STM32WL module, as well as 9 new modules for WisBlock modular IoT platform with MIC, e-Paper display, GPS, an ESP32 based WisBlock core, etc… But today, I’ll have a look at the new $99 WisGate Developer Base, a USB dongle that connects to a laptop for LoRaWAN networks evaluation, for example, to check the coverage before installing a new gateway. Alternatively, it could also be used to add LoRaWAN gateway capability to existing embedded hardware like routers or industrial PCs. Two variants of the WisGate Developer Base are available – RAK7271 & RAK7371 – with the following specifications: Concentrator modules RAK7271 – RAK2287 SX1302 based mini PCIe concentrator module RAK7371 – RAK5146 SX1303 based […]

February 19, 2021February 19, 2021 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

LiPo battery powered Olimex boards use ESP32-S2’s USB OTG interface

Last year, Olimex introduced ESP32-S2-DevKit-LiPo and ESP32-S2-WROVER-Devkit-LiPo boards optimized for battery-powered applications with as little as 30uA deep sleep power consumption. ESP32-S2 processor comes with a USB OTG interface, but at the time, Espressif Systems ESF-IDF SDK did not support programming via the built-in USB interface, so Olimex added CH340T USB to serial converter for programming. The good news is that the SDK can now support USB programming without an external chip, so the company designed new versions of the boards without a USB to serial chip with namely ESP32-S2-DevKit-LiPo-USB and ESP32-S2-WROVER-Devkit-LiPo-USB boards. The specifications are basically the same as previously except for the removal of the USB to serial chip, support for USB OTG, and even lower power consumption: Wireless module: ESP32-S2-DevKit-LiPo – ESP32-S2-WROOM with Espressif ESP32-S2 single-core 32-bit LX7 microprocessor up to 240 MHz with 128 KB ROM, 320 KB SRAM, 16 KB SRAM in RTC, 4MB SPI […]

February 2, 2021February 2, 2021 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

Some really tiny USB-C boards – MangoGeek dual serial USB board and Ant2 LiPo Charger

The most touted advantages of the USB Type-C port are that it is reversible, enables more reliable and faster charging, and extra features like DisplayPort alt mode. But it’s also about as small as the micro USB port, and yesterday I came across two really small board with a USB-C connector: Ant2 LiPo charger board and a TTL to USB debug board from MangoGeek with two serial ports. MangoGeek dual serial to USB board One the dual row header, with eight pins in total, is solder to the board, it’s about as big as a MicroSD card. The board is based on Silicon Labs CP2105 USB to dual UART bridge controller., and provides two Tx/Rx interfaces, DTR, RTS, 5V, and GND signals on the top and bottom of the board. One of the UART ports could be used to access a Linux serial, and the other to transmit data. The […]

January 16, 2021 by Jean-Luc Aufranc (CNXSoft) - 23 Comments

PinePower 120W desktop power supply features display, USB PD, QC 3.0 and wireless charging

Desktop Power Supply Qi Wireless Charging

Pine64’s January update includes the launch of PinePhone with Mobian operating system, some limited details about the upcoming Quartz64 RK3566 SBC that will ship with 4 to 8GB RAM, and other news about all their products. There’s not enough details yet to write a post about Quartz64, but another product caught my eyes: PinePower. Yes, Pine64 is now offering power supply, and last month they presented PinePower 65W GaN power adapter that looks similar to MINIX NEO P1 power supply, albeit slightly larger. But I find the desktop version of the power supply even more interesting with an integrated display that shows voltage and current for each port, and also adds Qi wireless charging. PinePower “Desktop” version specifications: Display – Shows individual port voltage and current status USB charging ports 1x USB Type-C PD port up to 65W output with support for 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A 1x QC 3.0 […]

January 15, 2021January 15, 2021 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

USB2IO high-speed interface explorer tool combines Intel Cyclone 10 FPGA and STM32H7 MCU

In the second part of 2020, we’ve seen a fair amount of USB debugging tools for electronics designers and hardware hackers including the Glasgow Interface explorer with an ICE40 FPGA. But if you need even more flexibility or higher I/O speeds (up to 300 MHz), DAB Embedded USB2IO interface explorer should help thanks to the combination of an STMicro STM32H7 MCU and an Intel Cyclone 10 FPGA. USB2IO interface explorer hardware specifications: MCU – STMicro STM32H743 Arm Cortex-M7 @ 480MHz CPU clock An external 64MB QSPI flash for extra FPGA code storage; FPGA – Intel Cyclone 10LP (10CL040) with 40k logic elements, 1,134 Mbit embedded memory, 126 DSP blocks External memory – 32MB SDRAM for MCU and FPGA (64MB in total) Storage – 64MB QSPI for connected to MCU for FPGA code storage I/Os via 20-pin external header/connector 16 x GPIO mode (single-ended), 8x LVDS pair mode or a mix […]