Jul 18, 2018 #1 M maormat4 Junior Member level 3 Joined Mar 1, 2017 Messages 26 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 203 usb on arduino question HI GUYS, In the arduino uno schematic why i cant just plug the usb d+ and d- stright to the atmega8? why i need an additional ic for that? Thank you
usb on arduino question HI GUYS, In the arduino uno schematic why i cant just plug the usb d+ and d- stright to the atmega8? why i need an additional ic for that? Thank you
Jul 18, 2018 #2 andre_luis Super Moderator Staff member Joined Nov 7, 2006 Messages 9,593 Helped 1,190 Reputation 2,399 Reaction score 1,207 Trophy points 1,403 Location Brazil Activity points 55,668 Re: usb on arduino question The "additional" IC acts as an USB/UART converter, a peripheral not available built-in at Atmega8 microcontroller.
Re: usb on arduino question The "additional" IC acts as an USB/UART converter, a peripheral not available built-in at Atmega8 microcontroller.
Jul 18, 2018 #3 M maormat4 Junior Member level 3 Joined Mar 1, 2017 Messages 26 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 203 Re: usb on arduino question Thanks man, and if i use usb 3.0 that has rx and tx i can connect it directly?
Re: usb on arduino question Thanks man, and if i use usb 3.0 that has rx and tx i can connect it directly?
Jul 18, 2018 #4 R rho-bot Advanced Member level 4 Joined Jan 11, 2009 Messages 105 Helped 16 Reputation 32 Reaction score 16 Trophy points 1,298 Activity points 1,949 Re: usb on arduino question Kidding? No, you can't. USB3.0 uses 2 unidirectional differential pairs, therefore they call them RX & TX. USB has nothing in common with UART.
Re: usb on arduino question Kidding? No, you can't. USB3.0 uses 2 unidirectional differential pairs, therefore they call them RX & TX. USB has nothing in common with UART.
Jul 18, 2018 #5 F filip.amator Full Member level 3 Joined Apr 30, 2017 Messages 176 Helped 35 Reputation 70 Reaction score 34 Trophy points 28 Activity points 1,047 Re: usb on arduino question No, you can't because ATmega8 is too small and too slow to handle usb 3.0 data transfers. It is really simple mcu with low resources and low computing power.
Re: usb on arduino question No, you can't because ATmega8 is too small and too slow to handle usb 3.0 data transfers. It is really simple mcu with low resources and low computing power.