Arduino Test

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Arduino_Test

/* YourDuino Arduino Board TEST

Tests all Arduino I/O and Analog pins for Source and Sink ability
Tests Analog Read on A0..A5 terry@yourduino.com


This test assumes that pins 0 (RX Data) and 1 (TX Data) are OK if programs can be loaded, and that pin 13 is OK if it's attached LED can be blinked. Pin 13 is not tested for current sink ability.

Test progress and pass-fail results are sent to the Serial Monitor. At the end of test, Pin 13 LED is blinked very slowly for Pass and quickly for Fail.

This test works with a "Test Shield" that is plugged on top of the Arduino under test. This shield has a common isolated connection point. The Common Point has 17 220 ohm resistors connected to every digital pin from 2 to 12, and to every analog pin from 0 to 5. It also has two 100,000 ohm resistors which connect it to Ground and +5.0 volts, forming a voltage divider that sets the common point to 2.50 volts when all pins are in the reset high-impedance input condition. This is read by A0 to initially test if any of the pins are "stuck" or "leaking", which will pull the common point away from 2.50 volts

See examples of the shield HERE (Click)

Next, pins 3 thru A5 are tested by setting them High or Low against an opposite load presented by pin 2. Each pin must be able to source and sink at least 10 ma to bring the common point near 2.50 volts. If pin 2 fails, all other pins will fail.

Next, A0 thru A5 are tested individually with voltages near 1.66, 2.50, 3.33volts and possibly others, using the resistors connected to the digital pins to make various voltage dividers.

This design and software is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License: http://creativecommons.org/licenses/by-nc-sa/3

*/
------------ NOTE! -------------------------------
This also needs a library for LED control, which you can download here:
https://arduinoinfo.mywikis.net/wiki/HAL-LibrariesUpdates
Here is the code that can be cut and pasted into the Arduino IDE.

/* YourDuino Arduino Board TEST Tests all Arduino I/O and Analog pins for Source and Sink ability Tests Analog Read on A0..A5 terry@yourduino.com This test assumes that pins 0 (RX Data) and 1 (TX Data) are OK if programs can be loaded, and that pin 13 is OK if it's attached LED can be blinked. Pin 13 is not tested for current sink ability. Test progress and pass-fail results are sent to the Serial Monitor. At the end of test, Pin 13 LED is blinked very slowly for Pass and quickly for Fail. This test works with a "Test Shield" that is plugged on top of the Arduino under test. This shield has a common isolated connection point. The Common Point has 17 220 ohm resistors connected to every digital pin from 2 to 12, and to every analog pin from 0 to 5. It also has two 100,000 ohm resistors which connect it to Ground and +5.0 volts, forming a voltage divider that sets the common point to 2.50 volts when all pins are in the reset high-impedance input condition. This is read by A0 to initially test if any of the pins are "stuck" or "leaking", which will pull the common point away from 2.50 volts Next, pins 3 thru A5 are tested by setting them High or Low against an opposite load presented by pin 2. Each pin must be able to source and sink at least 10 ma to bring the common point near 2.50 volts. If pin 2 fails, all other pins will fail. Next, A0 thru A5 are tested individually with voltages near 1.66, 2.50, 3.33volts and possibly others, using the resistors connected to the digital pins to make various voltage dividers. This design and software is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License: http://creativecommons.org/licenses/by-nc-sa/3 */ /*-----( Import needed libraries )-----*/ #include <LED.h> // Easy HAL blink routines /*-----( Declare Constants )-----*/ const int FirstDigPort = 3; //Pin 2 is used as reference const int LastDigPort = 12; const int FirstAnaPort = 15; const int LastAnaPort = 19; const int A2D_Delay = 10; //ms delay for A-D to settle const float LowStuckResultOK = 2.40 ; const float HighStuckResultOK = 2.60 ; const float LowVoltResultOK = 2.30 ; const float HighVoltResultOK = 2.70 ; /*-----( Declare objects )-----*/ LED LED13(13); // The only LED we can blink! /*-----( Declare Variables )-----*/ int DigPort2Test; int AnaPort2Test; int IntVoltsRead; // Result of AnalogRead 0..1023 float FloatVoltsRead; // Result of AnalogRead 0.0 .. 5.0 int Failure; // Count failures that occur byte FailArray[20]; // Save Pass-Fail during a test int FailArrayPtr; void setup() /****** SETUP: RUNS ONCE ******/ { delay(500); Serial.begin(9600); delay(500); Serial.println("Arduino Board Test V1.08"); Serial.println("YourDuino.com terry@yourduino.com"); delay(500); LED13.blink(300, 4); // "HI" in Morse code delay(500); LED13.blink(300, 2); }//--(end setup )--- void loop() /****** LOOP: RUNS CONSTANTLY ******/ { Failure = 0; Serial.println(); Serial.println("--- TEST START ---"); //-------------( TEST 1 )--------------------------------------------- Serial.println("TEST 001 - Any stuck pins??"); delay(500); IntVoltsRead = analogRead(A0); FloatVoltsRead = a2d2float (IntVoltsRead); Serial.print("VoltsRead = "); Serial.print(FloatVoltsRead,2); if (FloatVoltsRead > LowStuckResultOK && FloatVoltsRead < HighStuckResultOK) { Serial.println(" -- OK!"); } else { Failure ++; Serial.println(" ** STUCK OR LEAKY PIN FAIL ** "); } //-----------------------( TEST 2 )-------------------------------- Serial.println(); Serial.println("TEST 002 - Digital Pins Source Current"); pinMode(2, OUTPUT); // Set Load pin to Output mode digitalWrite(2, LOW); // Connect Low Load FailArrayPtr = 0 ; //---------( Write the Digital Pin Labels )--------------- WriteDigitalPinLabels(); //------( Loop thru pins, testing )----------- for ( DigPort2Test = FirstDigPort; DigPort2Test <= LastDigPort; DigPort2Test ++) {//Loop thru Source Tests FailArrayPtr ++ ; pinMode(DigPort2Test, OUTPUT); // Set tested pin to Output mode digitalWrite(DigPort2Test, HIGH); // Pin Sources current HIGH delay(A2D_Delay); IntVoltsRead = analogRead(A0); FloatVoltsRead = a2d2float (IntVoltsRead); pinMode(DigPort2Test, INPUT); // ReSet tested pin to Input mode Serial.print(FloatVoltsRead,2); Serial.print(" "); if (FloatVoltsRead > LowVoltResultOK && FloatVoltsRead < HighVoltResultOK) { FailArray[FailArrayPtr] = 0; } else { Failure ++; FailArray[FailArrayPtr] = 1; } }//END Loop thru Source Tests Serial.println(); //--------( Write the Digital Pin PASS-FAIL Strings )---------------------- WriteDigitalPassFail(); //--------------------( TEST 3 )---------------------------------------- Serial.println("TEST 003 - Digital Pins Sink Current"); pinMode(2, OUTPUT); // Set Load pin to Output mode digitalWrite(2, HIGH); // Connect HIGH Load FailArrayPtr = 0 ; //---------( Write the Digital Pin Labels )------------ WriteDigitalPinLabels(); //------( Loop thru pins, testing )----------- for ( DigPort2Test = FirstDigPort; DigPort2Test <= LastDigPort; DigPort2Test ++) {//Loop thru Source Tests FailArrayPtr ++ ; pinMode(DigPort2Test, OUTPUT); // Set tested pin to Output mode digitalWrite(DigPort2Test, LOW); // Pin Sinks current LOW delay(A2D_Delay); IntVoltsRead = analogRead(A0); FloatVoltsRead = a2d2float (IntVoltsRead); pinMode(DigPort2Test, INPUT); // ReSet tested pin to Input mode Serial.print(FloatVoltsRead,2); Serial.print(" "); if (FloatVoltsRead > LowVoltResultOK && FloatVoltsRead < HighVoltResultOK) { FailArray[FailArrayPtr] = 0; } else { Failure ++; FailArray[FailArrayPtr] = 1; } }//END Loop thru Source Tests Serial.println(); //--------( Write the Digital Pin PASS-FAIL Strings )-------------- WriteDigitalPassFail(); //-------------------------( TEST 4 )---------------------------------------- Serial.println(); Serial.println("TEST 004 - Analog Pins Source Current"); pinMode(2, OUTPUT); // Set Load pin to Output mode digitalWrite(2, LOW); // Connect Low Load WriteAnalogPinLabels(); for ( DigPort2Test = FirstAnaPort; DigPort2Test <= LastAnaPort; DigPort2Test ++) {//Loop thru Source Tests pinMode(DigPort2Test, OUTPUT); // Set tested pin to Output mode digitalWrite(DigPort2Test, HIGH); // Pin Sources current HIGH delay(A2D_Delay); IntVoltsRead = analogRead(A0); FloatVoltsRead = a2d2float (IntVoltsRead); pinMode(DigPort2Test, INPUT); // ReSet tested pin to Input mode Serial.print(FloatVoltsRead,2); Serial.print(" "); if (FloatVoltsRead > LowVoltResultOK && FloatVoltsRead < HighVoltResultOK) { FailArray[FailArrayPtr] = 0; } else { Failure ++; FailArray[FailArrayPtr] = 1; } }//END Loop thru Source Tests Serial.println(); WriteAnalogPassFail(); /*---------( TEST 5 )----------------------*/ Serial.println("TEST 005 - Analog Pins Sink Current"); pinMode(2, OUTPUT); // Set Load pin to Output mode digitalWrite(2, HIGH); // Connect HIGH Load WriteAnalogPinLabels(); for ( DigPort2Test = FirstAnaPort; DigPort2Test <= LastAnaPort; DigPort2Test ++) {//Loop thru Sink Tests pinMode(DigPort2Test, OUTPUT); // Set tested pin to Output mode digitalWrite(DigPort2Test, LOW); // Pin Sinks current LOW delay(A2D_Delay); IntVoltsRead = analogRead(A0); FloatVoltsRead = a2d2float (IntVoltsRead); pinMode(DigPort2Test, INPUT); // ReSet tested pin to Input mode Serial.print(FloatVoltsRead,2); Serial.print(" "); if (FloatVoltsRead > LowVoltResultOK && FloatVoltsRead < HighVoltResultOK) { FailArray[FailArrayPtr] = 0; } else { Failure ++; FailArray[FailArrayPtr] = 1; } }//END Loop thru Source Tests Serial.println(); WriteAnalogPassFail(); /*---------( TEST 6 )----------------------*/ Serial.println(); Serial.println("TEST 006 - Analog Pins A0 to A5: A to D (About 2.50 V)"); pinMode(2, OUTPUT); // Set Load pin to Output mode digitalWrite(2, HIGH); // Connect HIGH Load pinMode(3, OUTPUT); // Set Load pin to Output mode digitalWrite(3, LOW); // Connect LOW Load WriteAnalogVoltLabels(); for ( AnaPort2Test = FirstAnaPort -1; AnaPort2Test <= LastAnaPort; AnaPort2Test ++) {// Loop thru Analog Tests delay(A2D_Delay); IntVoltsRead = analogRead(AnaPort2Test); FloatVoltsRead = a2d2float (IntVoltsRead); Serial.print(FloatVoltsRead,2); Serial.print(" "); }// END Loop thru Analog Tests /*---------( TEST 7 )----------------------*/ Serial.println(); Serial.println(); Serial.println("TEST 007 - Analog Pins A0 to A5: A to D (About 3.33 V)"); pinMode(4, OUTPUT); // Set Load pin to Output mode digitalWrite(4, HIGH); // Connect 2nd Resistor WriteAnalogVoltLabels(); for ( AnaPort2Test = FirstAnaPort -1; AnaPort2Test <= LastAnaPort; AnaPort2Test ++) {// Loop thru Analog Tests delay(A2D_Delay); IntVoltsRead = analogRead(AnaPort2Test); FloatVoltsRead = a2d2float (IntVoltsRead); Serial.print(FloatVoltsRead,2); Serial.print(" "); }// END Loop thru Analog Tests /*---------( TEST 8 )----------------------*/ Serial.println(); Serial.println(); Serial.println("TEST 008 - Analog Pins A0 to A5: A to D (About 1.66 V)"); pinMode(4, OUTPUT); // Set Load pin to Output mode digitalWrite(4, LOW); // Connect 2nd Resistor WriteAnalogVoltLabels(); for ( AnaPort2Test = FirstAnaPort -1; AnaPort2Test <= LastAnaPort; AnaPort2Test ++) {// Loop thru Analog Tests delay(A2D_Delay); IntVoltsRead = analogRead(AnaPort2Test); FloatVoltsRead = a2d2float (IntVoltsRead); Serial.print(FloatVoltsRead,2); Serial.print(" "); }// END Loop thru Analog Tests //----------( End Test Digital and Analog Ports: Reset everything)------- pinMode(2, INPUT); // Reset Load pin to Input mode pinMode(3, INPUT); // Reset Load pin to Input mode pinMode(4, INPUT); // Reset Load pin to Input mode MCUCR |= ( 1 << PUD ); //Disable all Pullups /*------------( TEST COMPLETE )----------------*/ Serial.println(); Serial.println("TEST COMPLETE"); if (Failure > 0) { Serial.print("!!!!!!!!!! THERE WERE "); Serial.print(Failure, DEC); Serial.print(" FAILURES !!!!!!!!!!"); LED13.blink(150, 50); } else { LED13.blink(4000, 4); } Serial.println(); // delay(10000); //--(end main loop )--- } //----------------( Declare User-written Functions )-------------------------- /*---( fmap: Converts int Analog readings of 0..1023 to float)---*/ float fmap(float x, float in_min, float in_max, float out_min, float out_max) { return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min; } float a2d2float (int raw) { return fmap(raw, 0, 1023, 0.0, 5.0); } void WriteDigitalPinLabels() { //---------( Write the Digital Pin Labels )--------------------- for ( DigPort2Test = FirstDigPort; DigPort2Test <= LastDigPort; DigPort2Test ++) {//Write the label strings Serial.print("PIN-"); Serial.print(DigPort2Test, DEC); Serial.print(" "); }// Write Labels Serial.println(); } void WriteAnalogPinLabels() { //---------( Write the Analog Pin Labels )--------------------- for ( DigPort2Test = FirstAnaPort; DigPort2Test <= LastAnaPort; DigPort2Test ++) {//Write the label strings Serial.print("PIN-"); Serial.print(DigPort2Test -14 , DEC); Serial.print(" "); }// Write Labels Serial.println(); } void WriteAnalogVoltLabels() { //---------( Write the Analog Pin Labels )--------------------- for ( DigPort2Test = FirstAnaPort - 1; DigPort2Test <= LastAnaPort; DigPort2Test ++) {//Write the label strings Serial.print("PIN-"); Serial.print(DigPort2Test -14 , DEC); Serial.print(" "); }// Write Labels Serial.println(); } //--------( Write the Digital Pin PASS-FAIL Strings )---------------------- void WriteDigitalPassFail() { FailArrayPtr = 0; for ( DigPort2Test = FirstDigPort; DigPort2Test <= LastDigPort; DigPort2Test ++) {//Write the PASS-FAIL strings FailArrayPtr ++; if (FailArray[FailArrayPtr] == 1) // Was a Fail { Serial.print("FAIL "); } else { Serial.print("-OK- "); } }// Write PASS-FAIL Serial.println(); }//End WriteDigitalPassFail //--------( Write the Analog Pin PASS-FAIL Strings )---------------------- void WriteAnalogPassFail() { FailArrayPtr = 0; for ( DigPort2Test = FirstAnaPort; DigPort2Test <= LastAnaPort; DigPort2Test ++) {//Write the PASS-FAIL strings FailArrayPtr ++; if (FailArray[FailArrayPtr] == 1) // Was a Fail { Serial.print("FAIL "); } else { Serial.print("-OK- "); } }// Write PASS-FAIL Serial.println(); }//End WriteDigitalPassFail
//*********( THE END )***********