Background- my son wants to make a USB powered beverage cooler/warmer.
I went here. http://www.beyondlogic.org/usbnutshell/usb2.shtml and have soldered a 1.5K resistor to get the USB bus to supply power. The USB supplies power to a fan and a peltier (TEC). I suspect that I am only getting 100ma though.
I understand that if the USB device sends the correct signal the USB bus will supply 5V at 500ma.
How/what do I need/have to do to create the signal that will make the USB bus to send 5v at 500ma?
I did a search and I did not come up with anything that I could identify that would help. This is my first post and my first time soldering anything electronic, so please bear with my ignorance.
Thank you,
Paul
I went here. http://www.beyondlogic.org/usbnutshell/usb2.shtml and have soldered a 1.5K resistor to get the USB bus to supply power. The USB supplies power to a fan and a peltier (TEC). I suspect that I am only getting 100ma though.
I understand that if the USB device sends the correct signal the USB bus will supply 5V at 500ma.
How/what do I need/have to do to create the signal that will make the USB bus to send 5v at 500ma?
I did a search and I did not come up with anything that I could identify that would help. This is my first post and my first time soldering anything electronic, so please bear with my ignorance.
Thank you,
Paul