In the classic configuration and most variants of the astable 555 multivibrator circuit, the timing characteristics are based on the charging and discharging of a capacitor. However, it can be argued ...

This simple LED driver circuit allows us to drive up to seven LEDs by using a single NiMH (Nickel Metal Hydride) AA cell. The circuit produces voltage pulses at a much higher level than the input ...

This voltage-booster circuit for driving one or more white LEDs uses a 555 timer as its main element (see the figure). The timer, IC1, functions as a resettable astable multivibrator where R1, R2 ...

Called SX8122, to the timer it adds: a simple battery charger, a boost converter, and a power-down controller. “It is designed for on/off button debouncing, delayed start-up timing, programmable ...

Posted in classic hacks, LED Hacks Tagged 555 timer, comparator, LED candle, mosfet ← Monitoring Power By Counting Blinks Intro To Docker: Why And How To Use Containers On Any System → ...

Posted in contests Tagged 555 timer, circuits, contests, software ← Update: Open Source Pick-and-place Grinding Down Your Computer To Just 8.5 Watts → ...