All notable changes to this project will be documented in this file. The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

This library controls the 74HC138 3 to 8 line decoder. With 3 IO lines one can select one of 8 output lines. 74HC138(uint8_t pin0, uint8_t pin1, uint8_t pin2, uint8_t pinEnable = 255) set the 3 ...

Beyond the eight 240 x 240 pixel panels, the unit features a Teensy 4.0, some level shifters, and a 74HC138 which is used to select which display the microcontroller is to communicate with.

1 Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan 2 Department of Computer Science, National Tsing Hua University, Hsinchu, Taiwan The development of large-scale ...

If you need a reflow oven, you can very easily head down to Walmart or Target and pick up a toaster oven for fifteen bucks or so. Even without any control electronics, a bone-stock toaster oven ...

We used two 74HC595 shift registers and two 74HC138 3to8 decoder to build the led power drive and makes the wires as simple as possible. Three buttons are built to set the sketchpad into ...

The bi-directional sequencer uses a 4 bit binary up/down counter (CD4516) and two “1 of 8 line decoders”74HC138 or 74HCT138) to generate the popular “Night Rider” display. A Schmitt Trigger oscillator ...