Hi,
I want to make a tester for a 4pin harness with bare ends.
I've read somewhere that one pin should be high and others at low for testing a specific wire and prevent damaging the Arduino but I'm not sure how to do it sequentially for all pins.
Ex. A & B are shorting
Detected Shorts:
Thanks!
Okay. What have you done so far? What specific hardware are you using?
Did you try typing "cable tester" into the search box at the upper right of the web page?
1 Like
Koepel
April 17, 2023, 12:44am
3
Why not use that picture and put 6 leds in it, then it is instantly clear what is connected to what.
xfpd
April 17, 2023, 12:58am
4
Sequentially send a known volt level to each pin. If that level registers on another pin, you have a short.
...with loads on the other end... because it would be an MCU input on the other end.
I haven't done anything yet since I'm still waiting for the arduino mega and other components to arrive.
I found this thread Continuity Tester (Pass or Fail outcome only) - #7 by G40PY and it looks similar to my project except that I'll be using TFT LCD instead of Serial
The idea has been around. A friend of mine was hired to build one back in the 1980s.
I tried searching for similar projects but most of them have 2 ends of the harness connected to the arduino.
in this thread I have a prototype of a cable tester:
DrDiettrich:
Das setzt voraus,
challenge akzeptiert.
Ganz was einfaches als proof of concept:
/*
simple check of connections between defined test pins.
external pulldown resistor 6K8
by noiasca
https://forum.arduino.cc/index.php?topic=666835.0
*/
const byte testPin[] {5, 6, 7, 8, 9, 10, 11, 12};
void setup() {
Serial.begin(115200);
Serial.println(F("\nCabletester"));
for (auto &i : testPin)
pinMode(i, INPUT);
}
void loop() {
check();
}
void check()
{
Serial.prin…
That is to test for open circuit. You can just omit that functionality.
system
October 14, 2023, 11:46am
11
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.
