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Category: LFOs

One-shot Event Generator

Posted on May 28, 2018October 24, 2019

Here’s something slightly different! Is it an LFO? Is it an envelope generator? Well, it’s a bit of both. It produces a one-off event like an envelope generator, but it has a selection of waves more like an LFO. It works by producing a single “ping” when triggered. A ping is like a mini-envelope. The […]

Posted in Envelope Generators, LFOs, Projects, Stompbox stuff, Synth DIY   7 Comments on One-shot Event Generator

TAPLFO 3C – Squashing the bug

Posted on April 25, 2018May 2, 2018

We’ve recently discovered a bug in the recently-released TAPLFO 3 code (how embarrassing!). The problem only affects the tap tempo feature of the TAPLFO3. Other chips like the VCLFO or STOMPLFO aren’t affected. We’ve fixed the code, and while we were working on it, we also improved the switch debouncing routine to be more tolerant of […]

Posted in LFOs, Projects, Stompbox stuff   Leave a Comment on TAPLFO 3C – Squashing the bug

Electric Druid chips: The Next Generation

Posted on February 23, 2018March 25, 2020

In the last six months, we’ve been very busy here in the Druid workshop, developing and testing new versions of our PIC-based chips. This work is now complete, so I’d like to introduce the new chips. Why bother? What was wrong with the old ones? Ok, there wasn’t anything much wrong with the old ones, […]

Posted in Envelope Generators, LFOs, Projects, Stompbox stuff, Synth DIY   22 Comments on Electric Druid chips: The Next Generation

Voltage Controlled LFO (VCLFO 9D)

Posted on May 27, 2008May 5, 2017

This voltage-controlled LFO is based on the PIC 16F684, which is a pretty basic chip. Nonetheless, this LFO has more features than your average LFO. For a start, it can produce 7 basic waveforms, and also includes a noise source. It can also morph its waveforms under CV control, well beyond basic PWM. There is […]

Posted in LFOs, Projects, Synth DIY   16 Comments on Voltage Controlled LFO (VCLFO 9D)

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Druid code and schematics are released under a CC BY-NC-SA 4.0 license, so feel free to download and use Electric Druid code in your personal synth, pedal, or sonic blastertron 2000. Grab a copy of the schematics and tweak away to your heart’s content. If you don’t have a PIC programmer, you can order a chip from the shop. Check the legal stuff for more details.

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Electric Druid code and schematics are released under a CC BY-NC-SA 4.0 license. Please check the legal stuff for more details. If you’d like to use Electric Druid chips, code, or circuits in your commercial product, we’d ask that you buy chips from us to help support the development of further projects. We can supply programmed, labelled chips in whatever quantities you need. If this isn’t suitable, please contact us to discuss your requirements. Thanks!