Last time I used my Bus Pirate I had problems with using it to communicate with a high-speed SPI ADC chip. At the time I abandoned it and moved on to communicating with the chip directly from the Raspberry Pi. In the back of my mind, though, I knew that I really ought to update …
A few months ago I got somewhat stuck trying to understand how to “join the dots” between the Bus Pirate and a MCP3002 SPI analogue to digital converter (ADC) chip. Finally I abandoned the effort and moved on to other things. More recently, however, I have succeeded in sending data to a MAX7219 LED matrix …
Continue reading ‘Another try at reading a MCP3002 ADC 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 …
Continue reading ‘Testing a MAX7219 LED array with Bus Pirate’ »
A few weeks ago I was experimenting with the clever little “bus pirate” board and its odd control language. A little later I was reading an article about some of the fun things Ward Cunningham has been getting up to with electronics, and I came across “txtzyme.” Thinking further on the similarities between the two …
Continue reading ‘Delimiter-free languages – bus pirate and txtzyme’ »
“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 …