Testing a MAX7219 LED array with Bus Pirate

After thinking about how to drive the MAX7219 LED array I built yesterday, it occurred to me that maybe this is an ideal time to get to the bottom of how to use the Bus Pirate board that I failed to use with a MCP3002 ADC chip. This time I was determined to get it …

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Pirates and SPIs

“Pirates and SPIs” sounds like a cheesy adventure story, but I’m afraid it’s more likely to be a serial than an exciting drama. A few days ago I had a delivery of some components I had ordered, including a MCP3002 analogue to digital converter. The data sheet for this device claims that it can do …

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