Content for 74HCT125

74HCT125

The 74HC125; 74HCT125 is a quad buffer/line driver with 3-state outputs controlled by the output enable inputs (nOE). A HIGH on nOE causes the outputs to assume a high impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Raspberry Pi Scoreboard

“Today I’ll explain how I made this scoreboard which is controlled by a raspberry pi and powered by a 5V power supply. It uses a combination of ws2811 and ws2812b leds for the lighting and the structure is made …

DIY 3D LED Cube With a Raspberry Pi

“This project goes over how we made a DIY 3D LED Cube from ws2812b LEDs. The cube is 8x8x8 of LEDs, so 512 total, and the layers are made of acrylic sheets we got from home depot. The animations are …

Apple HomeKit WS2812B LED Controller

“There are a lot of projects based on WS2812B LED strips out there, but most of these are using homebridge or any other solution - mostly based on MQTT - to communicate with HomeKit. Some projects are using effects via Apple HomeKit …

Inverse Thermal Camera

“Converts images to heat - not the other way around This little selfie camera was made as a weekend project almost two years ago. Practically everything came out of my parts bin and so it fit the Making Tech At Home …

ESP8266 E1.31 Multiplexing Pixel Controller

“Unicast E1.31 to WS2811/WS2812 WiFi controller, output up to 1360 pixels (8 ports/universes, 170 pixels per port, 4080 channels). I was looking for a relatively inexpensive way to drive a large number of WS2811/WS2812 LED Pixels …

Shift Register With 7 Segment Display

“This circuit takes the input of the shift register and outputs the binary representation to 4 LEDs and a 7-segment display. It incorporates a 4-bit bidirectional shift register, BCD to 7-segment display driver, a 7-segment common anode display, a line …