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Portable Multi-Chemistry Charger

Portable Multi-Chemistry Charger

par Acquris

A "small" charger with auto detect and auto charging as well as checki...

4.6k 1

Wide Band Spectrum Analyzer

Wide Band Spectrum Analyzer

par Acquris

Another thing I have been thinking about is a Wide Band Spectrum Analy...

6.1k 0

Digital Theremin with MPU

Digital Theremin with MPU

par Acquris

Instead of a traditional analog theremin, I suggest a fully digitally...

4.8k 0

AC-DC and AC-AC Adapter Tester [130237]

AC-DC and AC-AC Adapter Tester [130237]

par audeq2

A while back, along with a bunch of yard sale electronic components, I...

8.6k 1

A small and cheap bluetooth temperature and humidity transmitter

A small and cheap bluetooth temperature and humidity transmitter

From time to time a need a small temperature (and humidity) module tha...

5.7k 8

LPC810 as NE555 or as Capacitance Meter

LPC810 as NE555 or as Capacitance Meter

par clemo

The new LPC810 from NXP is an ARM Cortex-M0+ based microcontroller in...

18.8k 3

SolarPb

SolarPb

par Qrti

Small Solar Charge Regulator for Pb-Accumulators

13.1k 0

Ordering of a tricolor led without mechanical buttons

Ordering of a tricolor led without mechanical buttons

par Aubinais

Small kit PIC which order by 6 sensitive buttons a tricolour led: ON/O...

4.9k 0

Pen-Microphone

Pen-Microphone

par Stephen Bernhoeft

At last! A use for that "chunky" freebie pen… There i...

4.3k 0

One-wire interface for LCD

One-wire interface for LCD

par lux36

One-wire interface for LCD: When using a small MCU (e.g. like ATTiny),...

20.1k 4

Nixie-VFD guitar tuner

Nixie-VFD guitar tuner

par lux36

I started this project when asked by a friend of mine, a guitar player...

11.7k 4

Random Number Generator [150116]

Publié dans Elektor

Random Number Generator [150116]

par lux36

Zener diode noise is processed, captured and recorded on an SD card. P...

31.3k 25