Logic testers are simple but very helpful devices in testing digital circuits. A logic probe can be designed in many different ways. In this particular design, a combination of discrete and TTL logic ...

Logic probes are simple but handy tools that can be had for a couple of bucks. ... [Jxnblk]’s take on the logic probe is based on a circuit by [Tony van Roon].

The Logic Meter’s probes connect to logic-level signals in a circuit and can be set up to capture or send serial data, either directly to or from a UART or via an SPI bus connection.

Then, you can open up the probe's graph and watch the display in real time. The Text Recorder performs the same function, except that it logs to an external file for later analysis. Figure 1 shows a ...

The circuit presented here provides users with an indication of a high or low logic state.When the input is a logic 1 (high), the common-cathode display indicates "H." When the input is a logic 0 ...

The circuits successfully performed the sum-of-product operation at 2.8 kHz. The full potential of memristors was demonstrated when the devices were made to actively re-program themselves.