He first built a breadboard decoder circuit that would light 1 of 16 LEDs depending on the detected button press. This was well and good, but he decided that an Arduino-driven LCD display would ...

Ken Shirriff has written up a great blog post about his reverse engineering of the Z80’s 16-bit increment/decrement circuit. The Zilog Z80 was one of the most popular microprocessors of the 70 ...

Figure 4 The Shannon decoder principle applied to extending 8-bit DAC resolution. U1 is an 8-bit, voltage output, resistor-string type DAC (e.g., TLV5624) controlled by a standard SPI serial interface ...