I am working on the TMP36 example for the trinket pro 3.3.v as shown here:
I am using the USB connection, the exact same circuit and language with the exception of changing the analog pin to A3 on the trinket pro as opposed to 0 shown in the original Arduino. I am on a a Mac OS Yosemite 10.10.2
But I get no readings on the serial port. Perhaps this is a newbie mistake, and I can't seem to find a clear answer online, but do I need an FTDI cable in order to see serial output of temperature values on the serial monitor?
Yes, I wanted to know if on Arduino IDE, in order to see the temperature values from a trinket pro 3.3v with a TMP36 sensor, I need and FTDI Cable?
I'm currently using USB with the trinket bootloader to program the chip, but i get nothing on the serial monitor (no temperature values). Is that because I need an FTDI cable?
The Attiny85 is a fun processor because despite being so small, it has 8K of flash, and 5 I/O pins, including analog inputs and PWM 'analog' outputs. We designed a USB bootloader so you can plug it into any computer and reprogram it over a USB port just like an Arduino. In fact we even made some simple modifications to the Arduino IDE so that it works like a mini-Arduino board.
The same non-existent serial port would connect to the FTDI cable to be converted to USB.
I think your only choice for serial out might be to get a UART with SPI interface that the trinket could control.
You could also write your code to flash an LED at different points in the program.
Or develop your code on an Uno, with serial prints as needed for debugging, then strip out/comment out the serial stuff to compile it for the Attiny85.