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--- minimalist_lfo [2013/02/05 19:01] – created wadmin
+++ minimalist_lfo [2018/08/26 09:36] (current) – external edit 127.0.0.1
@@ Line 3: / Line 3: @@
 This LFO is 2.5*5cm big and provides a powerfull, gate triggable LFO to any of your design. Just plug in a 5V and watch the monitoring LED glow as your 0<->5V LFO is fed to your favourite synth. Here's the design !
-==== Concept ====
+{{ :lfo_dlfo.jpg?300|}}==== Concept ====
+This LFO has the following characteristics :
+  * Output swing from 0 to 4.8V
+  * Frequency from 0.5 to 10Hz
+  * Faded LED to visualise the LFO State
+  * Reset on the rising edge of a 5V Gate signal
+  * Low component count
+==== Version ====
+V1.0 - 05/02/2013
 ==== Schematic ====
+The LFO is based on an ATTiny45/85 microcontroller.
+{{ :lfo_sch.png |}}
+  * Analog Input on Pin 3 reads the "Rate" control, voltage from 0 to 5V
+  * Triangle Waveform LFO Waveform is generated by the Microcontroller
+  * LFO Output on Pin 5 (PWM Fast Mode) is filtered by R1/C1 to generate the 0-5V peak Triangle output
+  * AMP control potentiometer controls the amplitude of the LFO Output
+  * LED brightness is controlled by PWM as well
 ==== PCB ====
+The Miniature 2.5x5cm PCB allows this LFO to be integrated in any design.
+{{ :lfo_pcb.png |}}
+Board connector is as follows :
+  * 1: 5V
+  * 2: Gate
+  * 3: GND
+  * 4: LFO Output
+==== Design Files ====
+Made with Eagle CAD Free version.
+Download : {{:lfo.zip|}}
+==== Software ====
+Programmed using Arduino IDE for ATTiny mod.
+SW is currently under dev. Working demonstrator on breadboard, formal release "when ready".