E.V.A - C.V. Generator
Posted: Sun Dec 18, 2016 5:21 am
Have been working on miniaturizing the Lightning Wave C.V. functionality for a wee bit now.
The hand filing is a tad rough But it seems good to go. I'll do another PCB revision, but before I do I was thinking I'd gauge if rechargeable battery compatibility was a thing worth doing I don't think I could ship it containing the cell, but could make it compatible with cells and generic connectors sold at around $7 from model shops (online) in the US or elsewhere. I calculated a minimum of 15 hours use from a 2000mAh and it can charge overnight at 250mA off any standard 9V with enough juice.
It also includes PTC and over voltage / negative polarity protection, so you can't cook it by trying the wrong supply (up to 40V)
Some of the stuff it does:
User-created controlvoltage LFO waveforms - presets x5
255 stage step sequencer
0-5V output/input range
Tap tempo & touchsensor
Sync input/output
Inverted CV output
Subdivision sync input changeable from 1/1 to 1/8
Control voltage on/off touch sensor
One time triggering to playback waveforms like envelopes
You can thank mysteriousj's coding skills for being able to include all that stuff while keeping it super neat.
Open to any suggestions/criticisms/requests..
The hand filing is a tad rough But it seems good to go. I'll do another PCB revision, but before I do I was thinking I'd gauge if rechargeable battery compatibility was a thing worth doing I don't think I could ship it containing the cell, but could make it compatible with cells and generic connectors sold at around $7 from model shops (online) in the US or elsewhere. I calculated a minimum of 15 hours use from a 2000mAh and it can charge overnight at 250mA off any standard 9V with enough juice.
It also includes PTC and over voltage / negative polarity protection, so you can't cook it by trying the wrong supply (up to 40V)
Some of the stuff it does:
User-created controlvoltage LFO waveforms - presets x5
255 stage step sequencer
0-5V output/input range
Tap tempo & touchsensor
Sync input/output
Inverted CV output
Subdivision sync input changeable from 1/1 to 1/8
Control voltage on/off touch sensor
One time triggering to playback waveforms like envelopes
You can thank mysteriousj's coding skills for being able to include all that stuff while keeping it super neat.
Open to any suggestions/criticisms/requests..