I have an Arduino Pro Mini and a USB cable with just wires from one side. Is it possible to connect these wires directly with Arduino? I mean, +Data to Rx, -Data to Tx, +5v to one of the numbered pins and ground to GND.
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2 Answers
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No, in fact you could damage your Arduino doing this.
The RX and TX pins are for Serial (which run at higher voltages than 5volts)
Your best option would be to buy a USB to Serial convetor and then use a MAX232 chip (it is a chip that converts TTL logic (5volts) to RS232 (3 to -25 volts).
Or you could try using the v-usb library. Google v-usb online.
Hope this helps.
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Yes, but not as you think, there is a raw voltage and regulated voltage but why run the risk of wiring incorrectly.
The best is use USB device between FTDI.
Here is a simple pin connection to make programming easier in photos. (quality of photos may not be best but you get the idea from them) I don't show how I add the blue to the pins but that is shrink tubing heated.
This makes easier programming of your Arduino this can be attached to a programmer quickly and effectively.
You can get this from Sparkfun for very cheap FTDI
