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Why usb3.1 Type-C has two Dbus, RXbus and TXbus?

So I am using a camera and making it connect to a hub. The hub only has 9 pins(single Dbus, RXbus and TXbus) while camera has usb3.1 which has double if all these buses (D,RX and TX). So to connect it to a hub can I just short these two buses. What should I do? […]

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Can FPC 0.5mm cause usb 3.0 interference inside itself?

I am designing an 4-port USB 3.0 hub and using fpc 0.5mm connector to connect it to other usb devices. Will using fpc 0.5mm cable have interference because of high data rate? I am talking about the interference inside the cable itself from D+,D- to SSRX or SSTX wire. I have been reading and only […]

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74f269 counter getting very hot

Hi I’m a DIY enthusiast and I got stuck with the circuit that I designed. The counter is getting very hot from the moment It’s powered up. In my setup the 330Ohm resistors at the outputs are connected to GND via a led for each resistor. (not the relays) I omitted the resistors at the […]

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Arduino Ask Engineering

How can I get an integer from an RFID tag into a URL over serial communication?

I want to scan an RFID tage on an MFRC522 connected to an Arduino Mega, take that integer (of differing lengths for different tags) and pass it to an ESP8266 NodeMCU 12-E using serial communication, and have the ESP8266 create a URL (e.g., ‘http://socialtickr.com/kidskillz/sendstringtoESPa.php?tag=24498’) sent over wifi. The server should respond by creating and sending […]

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Ask Electrical Engineering Engineering

74f269 counter getting very hot

Hi I’m a DIY enthusiast and I got stuck with the circuit that I designed. The counter is getting very hot from the moment It’s powered up. In my setup the 330Ohm resistors at the outputs are connected to GND via a led for each resistor. (not the relays) I omitted the resistors at the […]

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Ask Electrical Engineering Engineering

troubleshooting tinyprog when programming TinyFPGA BX: [Errno 19] No such device

I am using the TinyFPGA BX for the first time, and tinyprog crashes when I try to program the board. First, I run apio build, and that seems to work fine. But then I try to program the FPGA with tinyprog: $ tinyprog -p hardware.bin TinyProg CLI ———— Using device id 1d50:6130 Only one board […]

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Ask Electrical Engineering Engineering

74f269 counter getting very hot

Hi I’m a DIY enthusiast and I got stuck with the circuit that I designed. The counter is getting very hot from the moment It’s powered up. In my setup the 330Ohm resistors at the outputs are connected to GND via a led for each resistor. (not the relays) I omitted the resistors at the […]

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Ask Electrical Engineering Engineering

What kind of PLL is used to recover the clock from E.G. USB 2.0 data stream

I would like to create a communication protocol to connect two FPGAs. I would like it to be fairly fast, (a couple of 100s of Mbps) but only use a single differential pair. This kind of thing is possible. USB 2.0 uses a single differential pair, and the receiver can reconstruct the clock because the […]

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Arduino Ask Engineering

Are there any Ardunio compatible Microcontrolers with integrated OP-AMPS?

Are there any Ardunio compatible Microcontrolers with integrated OP-AMPS? For example, PICĀ® microcontrollers has the PIC16F527 and PIC16F570, an 8 bit MCU with integrated op-amps. Im wondering if there is anything like that for MCU supported by the arduino family of microcontrolers.

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Ask Electrical Engineering Engineering

74f269 counter getting very hot

Hi I’m a DIY enthusiast and I got stuck with the circuit that I designed. The counter is getting very hot from the moment It’s powered up. In my setup the 330Ohm resistors at the outputs are connected to GND via a led for each resistor. (not the relays) I omitted the resistors at the […]