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Nucleo-F103rb Keyboard

Logan_
Associate

‎2025-02-19 10:31 PM

I'm new to fiddling with MCUs, so I'm looking for some advice, I'm working on a project for my class and I'm trying to emulate a keyboard using the nucleo-F103rb. I have my code written out, I have a usb cable with D+ Connected to PA12 and D- to PA11, GND to GND and VCC to E5V all within CN5. Despite having all the headers in place, my computer doesn't detect any connection whatsoever. If anyone could suggest anything that may help it'd be really appreciated. 

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TDK
Guru

‎2025-02-20 05:54 AM

Do you have a 1.5 kOhm pullup on USB_DP?

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FBL
ST Employee

‎2025-02-20 11:30 AM

Hi @Logan_ 

I'd add another question apart the hardware check suggested by @TDK 

Have you tried the example provided for a mouse?

STM32CubeF1/Projects/STM32F103RB-Nucleo/Applications/USB_Device/HID_Standalone at master · STMicroelectronics/STM32CubeF1

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