The 555 is a highly stable device for generating accurate time ... In the Monostable mode, the LM555 timer acts as a one shot pulse generator. The pulses being when the LM555 timer receives a signal ...

It isn’t that hard to make an electronic rain gauge if you have a steady source of power or you don’t mind changing batteries ...

After packing a 2N3904 transistor, an LM386 amplifier, and every Hackaday reader’s favorite chip the 555 timer into an enclosure along with some of their closest friends, it was time to build ...

When an object moves, it needs to pass the first IR sensor. While the object passes this first IR sensor, the first IR sensor signals Arduino to start the timer. Later the object passes the second IR ...

ArduTV is an upcoming shield designed to make it easy for Arduino users to connect their projects to any HDMI display. By using an AMD Spartan-7 FPGA, it handles all graphics processing on its own, ...

This is a port of Arduino to the RP2040 (Raspberry Pi Pico processor) and RP2350 (Raspberry Pi Pico 2 processor). It uses the bare Raspberry Pi Pico SDK and a custom GCC 14.2/Newlib 4.3 toolchain and ...