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The Papilio FPGA board is an excellent FPGA development board. It's got a Xilinx Spartan chip. And you can use it as a quite capable logic analyzer. That's no surprise. The developer of the Papilio, Jack Gasset from Gadget Factory, was also involved in the design of the Dangerous Prototypes Open Workbench Logic Sniffer. Just compare the schematics, and you'll find more similarities than differences. In essence, the Logic Sniffer is a Papilio with a Logic Analyzer design loaded, and with inpu ...
Yes, your Arduino Uno can be turned into a logic analyzer. Andrew Gillham has created a sketch that turns the UNO into a 6 channel SUMP compatible analyzer.     The maximum sample speed is 4 MHz. You can get 256 µS worth of samples for that frequency. At 500 kHz you can sample 2 ms. At the lowest rate of 10 kHz you can sample 102 seconds worth of signal.   The picture below shows a 25 kHz signal sampled at 1 MHz.     Although you can get up to 4 MHz captur ...
What happened before:   For almost a year I have a vintage turntable from Perpetuum Ebner at home. It's not mine. It belongs to someone that asked me to fix it. And it turned out that fixing the motor would cost too much. I asked the owner to collect the tt. That hasn't happened yet and the machine is collecting dust at my home.   So I'll take the freedom to attempt a non-intrusive repair with modern components. I'm also thinking about making it an Enchanted Objects Design Challeng ...
What happened before:   For almost a year I have a vintage turntable from Perpetuum Ebner at home. It's not mine. It belongs to someone that asked me to fix it. And it turned out that fixing the motor would cost too much. I asked the owner to collect the tt. That hasn't happened yet and the machine is collecting dust at my home.   So I'll take the freedom to attempt a non-intrusive repair with modern components. I'm also thinking about making it an Enchanted Objects Design Challeng ...
What happened before:   For almost a year I have a vintage turntable from Perpetuum Ebner at home. It's not mine. It belongs to someone that asked me to fix it. And it turned out that fixing the motor would cost too much. I asked the owner to collect the tt. That hasn't happened yet and the machine is collecting dust at my home.   So I'll take the freedom to attempt a non-intrusive repair with modern components. I'm also thinking about making it an Enchanted Objects Design Challeng ...