Available as a fully built module and a “finish-it-yourself” (with the surface mount parts pre-soldered). Both options come with the firmware pre-installed.

View the assembly instructions and bill of materials here.
The PHRSR (pronounced “phraser”) is a two-channel 1-16 step knob recorder / sequencer. Complex sequences with independent step lengths can be created quickly and intuitively. Great for modulation of anything in your synth. Channel A is on the left, B on the right.
CLK: a rising edge on the CLK input will increment the step. External clocking is realized through “hard-sync” of the internal clock. A pulse is output from the CLK output at each increment.
DC: The value to be written into a sequence.
REC: When pressed, the value of DC overwrites the current step’s value. When STEPS is also pressed, the length of that sequence will reset to 1 and increment with each clock pulse until either STEPS or REC is released.
Rate: Adjusts the internal clock rate.
Specifications:
- Module width: 6HP
- Module depth: 20mm
- Current draw:
- +12V: 45mA
- -12V: -5mA