I have a question about how to properly convert a signal to be compatible with the Teensy 4.0 board.
I have an inverted 5V TTL signal coming from this device:
The signal relates to a microscope component turning on, and I need to use it to time the onset of sensor recording from the Teensy. I plan to take a 50 ohm coaxial cable with BNC connector from the output of that device, and then connect it into the Teensy to time the sensor recordings.
Teensy's digital input pins do not tolerate 5V inputs, so I've looked into level shifting the 5V signal down to a 3.3V signal using this board:
However, I'm realizing I have no feasible access to a 5V power source to connect to the HV pin of this board, only the 5V TTL input. What would be the easiest way for me to accomplish what I want to do, without simply buying a new 5V compatible board (like an Arduino)?
Thanks for any advice!
I have an inverted 5V TTL signal coming from this device:
2 Input TTL Logic Gate, 16 Programmable Functions (AND Gate, OR Gate, XOR Gate)
Applications: Signal Gating, Selection, and Multiplexing Pulse Picking Logic Functions (AND, OR, XOR, etc) Logic High/Low Generation Signal Inversion An Essential Lab Tool for Working with TTL/CMOS Circuits Features: Manual or Remote Control 100 MHz Input Toggle Frequency 50 Ω Output...
www.pulseresearchlab.com
The signal relates to a microscope component turning on, and I need to use it to time the onset of sensor recording from the Teensy. I plan to take a 50 ohm coaxial cable with BNC connector from the output of that device, and then connect it into the Teensy to time the sensor recordings.
Teensy's digital input pins do not tolerate 5V inputs, so I've looked into level shifting the 5V signal down to a 3.3V signal using this board:
SparkFun Logic Level Converter - Bi-Directional - BOB-12009 - SparkFun Electronics
The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time.
www.sparkfun.com
However, I'm realizing I have no feasible access to a 5V power source to connect to the HV pin of this board, only the 5V TTL input. What would be the easiest way for me to accomplish what I want to do, without simply buying a new 5V compatible board (like an Arduino)?
Thanks for any advice!