Search found 3 matches
- Wed Nov 22, 2017 1:26 am
- Forum: General Hardware
- Topic: Route my USB 2.0 (12MHz) signal on the bottom layer of a 4-layer PCB
- Replies: 1
- Views: 4097
Route my USB 2.0 (12MHz) signal on the bottom layer of a 4-layer PCB
I would like to route my USB 2.0 (12MHz) signal on the bottom layer of a 4-layer PCB. However, the edge-coupled microstrips would then be referenced to the power plane, not the ground plane. The signals are going to the USB pins of an STM32F105 microcontroller(datasheet: http://www.kynix.com/uploadf...
- Tue Apr 11, 2017 4:07 am
- Forum: Arduino
- Topic: Why should the usb cable connect to the arduino?
- Replies: 0
- Views: 6395
Why should the usb cable connect to the arduino?
I have a problem with the ESP8266 wifi shield and the Arduino Uno Rev 3 I have made it work successfully with either software or hardware serial. However, if I connect a 12 V power supply to the Arduino and remove the usb cable (connecting the arduino to the pc) the STAT led on the wifi shield just ...
- Tue Feb 14, 2017 2:54 am
- Forum: General Hardware
- Topic: Resistors selection and PCB layout of TPS7A3001
- Replies: 0
- Views: 2332
Resistors selection and PCB layout of TPS7A3001
Hello, Recently I am trying to use TPS7A3001 for providing clean and stable +5 and -5 V power for my PCBs. I am aware that the output voltage is adjustable by changing the values of external resistors which is connected between the OUT pin and GND. After reading the datasheet, I have some questions:...