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--- minimalist_lfo [2013/02/05 19:01] – created wadmin
+++ minimalist_lfo [2013/02/05 22:29] – wadmin
@@ Line 4: / Line 4: @@
 ==== 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
 ==== 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|}}