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Trigger seq panel

elmegil·gator·hardware/trigger-seq-panel.kicad_pcb

Trigger seq panel PCB layout, top view — open source board by elmegil

About the Trigger seq panel PCB

Trigger seq panel is an open source PCB design by elmegil, published on GitHub under the MIT license. It is a 2-layer board measuring 89.1 × 104.6 mm, with 93 components from 41 distinct parts.

Other key parts include the TL072. By type, the board carries 32 diodes, 23 resistors, 20 switches, 9 connectors, 3 capacitors and 1 IC.

It belongs with the audio designs in this gallery.

From the project

gator ("gate-er") trigger sequencer eurorack module

"Hook's Gator" trigger (gate) sequencer.

Controls: - tempo - gate width (need to state range) - step count - swing (50% - no swing, to 70%) - run/stop switch and gate input - forward/backward (need to test backward with swing) switch and gate input - reset button and gate input - clock in + clock out (external clock is reflected on the output and overrides internal tempo) - 1x16 or 2x8 operation -- in 1x16 both outputs reflect the same - each step has a switch that indicates if there should be a gate out on that step or not.

Main components on the Trigger seq panel

TL072

Trigger seq panel bill of materials (BOM)

93 components, 41 distinct parts.

QtyPartRefs
1
TL072
U2
1
2N3904
Q6
1
OUT1
J1
1
OUT2
J2
1
RESET
J3
1
CKIN
J4
1
RUN_STOP
J5
1
UP_DOWN
J6
1
CLOCK_OUT
J7
1
SWITCH_PANEL
P3
1
JACKS_PANEL
P8
1
RATE
RV1
1
WIDTH
RV2
1
STEPS
RV3
1
SWING
RV4
16
SW_SPDT
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +8
1
SW_DPDT_x2
SW9
1
Run/Stop
SW18
1
Up/Down
SW19
1
RESET
SW20
Show 21 more
QtyPartRefs
1
S1
D3
1
S2
D4
1
S3
D5
1
S4
D6
1
S5
D7
1
S6
D8
1
S7
D9
1
S8
D10
16
1N4148
D11, D12, D13, D14, D15, D16, D17, D18 +8
1
S9
D19
1
S10
D20
1
S11
D21
1
S12
D22
1
S13
D23
1
S14
D24
1
S15
D25
1
S16
D26
2
100n
C5, C7
1
22n
C13
20
1K
R1, R2, R3, R4, R5, R6, R7, R8 +12
3
10K
R9, R19, R44

Trigger seq panel design files

The KiCad project lives in the elmegil/gator repository on GitHub; these links point at the commit this page was built from.

Trigger seq panel: common questions

How big is the Trigger seq panel PCB?

The Trigger seq panel measures 89.1 × 104.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Trigger seq panel?

93 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the Trigger seq panel design files?

From the elmegil/gator repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Trigger seq panel design in my own project?

Yes, under the terms of its MIT license, which elmegil chose for the repository.

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