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 ...

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 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 → ...