Sorry if this is a re-post, I couldn't find a relevant post. I currently have an arduino running on a breadboard, and am satisfied with the code but would like to be able to see the serial output. I know I can get a breakout board to allow me to read and program the board with usb. My question is: is there any way to read the serial output of my project using an Uno which is connected to a PC?
I don't want to hook the Uno up into my circuit but want to be able to monitor the serial output. Is there anyway to have the Uno read a pin on the breadboard?
Sorry if this is confusing, and thanks in advance for the help.
Hainsy
Sorry if this is a re-post, I couldn't find a relevant post. I currently have an arduino running on a breadboard, and am satisfied with the code but would like to be able to see the serial output. I know I can get a breakout board to allow me to read and program the board with usb. My question is: is there any way to read the serial output of my project using an Uno which is connected to a PC?
I don't want to hook the Uno up into my circuit but want to be able to monitor the serial output. Is there anyway to have the Uno read a pin on the breadboard?
Sorry if this is confusing, and thanks in advance for the help.
Hainsy
Sure there is. On the Uno place a jumper wire between reset and a ground pin (this will keep the Uno's 328P chip inactive). Then wire the serial output pin from your breadboard chip to Uno's pin 1 and also a wire from the serial input pin from your breadboard chip to Uno's pin 0. Finally you will need a ground wire between the Uno and your breadboard's ground.
Complete dummy questions: which are the serial input and output pins?
Less of a dummy question (I hope): If I removed the atmega chip completely would this still work or does the signal go through the microcontroller?
I don't know if anyone will see this, since I marked it as solved, but will connecting to the serial in and out ports also allow me to flash the Atmega with scripts from the PC based IDE? I didn't realize this was possible and have been pulling the chip from my breadboard and putting the chip into my Uno to program it (quite annoying considering all the revisions I've been doing).
It's amazing the things you can learn when you ask a simple question...
If your Atmega on the breadboard has a bootloader, you can upload sketches through the serial lines.
But you have to make a manual reset, when uploading.