The IDE version.... I have two. 1.8.9 and 2.3.2. My go-to is 1.8.9 because I just find it plays much friendlier with everything.
I only have 2.3.2 because some stuff requires it.
But.... version 1.8.9 had been pretty bulletproof over the...
I just don't know what is going on.....
These are proper Teensy 4.1's (Pi Hut). Running on Windows.
Plug them in and they get picked up. Select the port.... and then they fail to upload. Then an error pops up saying an unrecognised device has...
So.. a 390R resistor on the input to the 6n137 seems to work. Turned out I had a dud opto-isolator (maybe I fried it).
I looked at the data sheet for the 6n137 and just don't see the forward voltage for the internal Led. This 390r probably...
Yea. I am having a lot of problems with this whole setup that I normally don't get.
My Teensy 4.1 for starters is messing around when I plug in the USB telling me unrecognised device and all kinds of issues (and it's not the lead)
I am ashamed to say...... I asked ChatGPT...
In this circuit, the resistor R7R7R7 is in series with the input LED of the optocoupler 6N137. To determine the voltage drop across R7R7R7, we need to consider the following:
Forward Voltage of the...
Hello
Lack of intelligence alert...
I am using the attached circuit off my Teensy 4.1. There seems to be several variations of this circuit floating around.
My question...
Obviosuly the Teensy is 3.3v. This circuit actually does seem to...