Tag Archives: logic

Arduino, 23K256 SRAM and 74LVC245 Bus Transceiver

As discussed in this post, when interfacing 3.3V devices with a 5V Arduino, the logic level needs to be shifted. Most 3.3V devices will be damaged if operated with 5V signals, while others will simply operate unreliably. The shifting can … Continue reading

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Simple Arduino Debugging Techniques

Here are a couple of simple techniques I have found useful for debugging: 1. Turn on/off the pin 13 LED by inserting a digitalWrite(13, HIGH) before/after questionable areas of your program. If the Arduino’s built-in LED turns on, then you … Continue reading

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