How it works

Assembly Instructions

You will also need a soldering iron, an Arduino Uno, wire cutters, and a PC with a USB port.

  1. Identify the included parts. These are the parts included in the kit.

    Kit contents laid out before assembly

  2. Assemble the upper components. Insert the LEDs, switches, resistors, jumper pin, and the ZIF socket. LEDs must be inserted in the correct orientation — the longer leg should go in the hole on the opposite side of the flat mark on the board.

    LED orientation reference

  3. Check your work. The board should look like this with all components inserted.

    Board with upper components inserted

  4. Flip the board over and solder in the components. Ensure that extra solder does not connect any pins. Trim the extra wire length off the LED legs.

    Board flipped over for soldering

  5. Prepare the riser pins. Cut the pins to fit into the series of holes on the edges of the board. Extra pins can be saved or discarded.

    Pins cut to length

  6. Insert the pin sets as shown.

    Pin sets inserted into the board

  7. Solder the pins from the top of the board, then install the completed shield on your Arduino Uno.

    Pins soldered from the top of the board

  8. Install the Arduino IDE. Download and install the Arduino IDE software.

  9. Download the 4164 memory test source code. Go to the 4164MemTest repository, select Code > Download ZIP, then extract the ZIP file and save dramarduino.ino.

  10. Connect your Arduino Uno to your computer via USB.

  11. Configure the Arduino IDE. Launch the IDE and make sure Arduino Uno and your correct COM port are both selected under the Tools menu.

  12. Open the sketch. Select File > Open, then select the dramarduino.ino file you downloaded in step 9.

  13. Upload the sketch. Select Sketch > Upload to load the code onto your Arduino.

    Note: If you encounter an upload error, retry with the shield disconnected from your Arduino.

Using the 4164 / 41256 Tester

  1. Plug the Arduino in with a 9V power supply or USB.

  2. Insert the 4164 or 41256 chip to be tested. Select either 4164 or 41256 using the jumper pin. The semicircle mark should point toward the LEDs (pin 1 in the upper left).

  3. Press Start Test to run the test cycle.

  4. Solid green = good, solid red = bad.

Buy It

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