I thought that I would pass along a
Fritzing diagram that I found helpful in visualizing the project for me. The diagram was created with the
2N4403 PNP transistor in mind. One thing to note, is that if you are using a different transistor other than the one specified, make sure you check the
datasheet for the pinout and ratings. In my final test I actually used a different transistor and wiring configuration than shown in the
Fritzing diagram below.
It was a fun project, especially hunting for transistors in my broken electronics bin. I found a suitable one, however after running a
few forward voltage tests using the diode check on an
Agilent U1233A Multimeter, I was able to determine that the salvaged resistor was damaged in the process. For the sake of testing I used a transistor that had the bare minimum for the collector current (Ic). The other downfall was that the transistor was an ECB (Emmiter pin 1, Collector pin 2, and Base pin 3) instead of the EBC shown in the article. So please note the photo of the actual wiring is slightly different than the diagram. When I transfer this project over to a prototype board I plan on using the
actual transistor suggested in the article. I have some
proto board with 442 points that seems to be the perfect size to create a shield. The bill of materials in the article doesn't mention it, but I plan on using some I purchased from
ebay.
Note: Unfortunately the link to purchase the transistor in the Coding4Fun article is broken. The links above should work.
You can find below a picture of the
completed breadboard project, however do keep in mind that I damaged my
Touch Display earlier —
oddly enough a touch display is not a toy for a 2 year old — and have ordered a replacement screen from
[nwazet. I must add, the service and swiftness of the shipment from [nwazet has been fantastic. Thank you.
You may also notice the handy
Prototype shield with mini breadboard I am using. It was purchased from
Dealextreme.com for a really good price with free shipping. Now to wait for my replacement screen and some fun projects to come on the
Netduino Plus. In the mean time I will be playing with my
Netduino Go! and the the
Seven Segment Display Module from
Komodex.com.
Thanks again for the article Fabien. Great work.
Cheers,
Steve
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