Sensor modules

AXS-001 — Button & switch pack PMOD module

Catalog #1 in the AruviX sensor line, level L1 (GPIO). The intended first board: read inputs, debounce in fabric, detect edges.

Level L1 ERC clean DRC clean Fab package 15 components

3D render of the AXS-001 PCB — Rendered from the PCB layout. No physical board has been manufactured.

Circuit review & bench-test guide →

Components#

Every placed component, with the reason it is on the board. Extracted directly from the schematic, so this cannot drift from the design.

Ref	Value	What it does on this board	Part number	Footprint
`J1`	PMOD PLUG 2x6	PMOD peripheral plug (Digilent spec 1.2)	not selected generic	`PinHeader_2x06_P2.54mm_Horizontal`
`R1`	10k	Active-low button pull-up	`RC0603FR-0710KL` Yageo Datasheet ↗	`R_0603_1608Metric`
`R2`	10k	Active-low button pull-up	`RC0603FR-0710KL` Yageo Datasheet ↗	`R_0603_1608Metric`
`R3`	10k	Active-low button pull-up	`RC0603FR-0710KL` Yageo Datasheet ↗	`R_0603_1608Metric`
`R4`	10k	Active-low button pull-up	`RC0603FR-0710KL` Yageo Datasheet ↗	`R_0603_1608Metric`
`R5`	100R	Series protection on the module-driven button line	`RC0603FR-07100RL` Yageo Datasheet ↗	`R_0603_1608Metric`
`R6`	100R	Series protection on the module-driven button line	`RC0603FR-07100RL` Yageo Datasheet ↗	`R_0603_1608Metric`
`R7`	100R	Series protection on the module-driven button line	`RC0603FR-07100RL` Yageo Datasheet ↗	`R_0603_1608Metric`
`R8`	100R	Series protection on the module-driven button line	`RC0603FR-07100RL` Yageo Datasheet ↗	`R_0603_1608Metric`
`R9`	100R	Series protection on the module-driven slide line	`RC0603FR-07100RL` Yageo Datasheet ↗	`R_0603_1608Metric`
`SW1`	SKQG 5.2mm	Low-profile SMD tactile button	`SKQGABE010` Alps Alpine Datasheet ↗	`SW_SPST_SKQG_WithoutStem`
`SW2`	SKQG 5.2mm	Low-profile SMD tactile button	`SKQGABE010` Alps Alpine Datasheet ↗	`SW_SPST_SKQG_WithoutStem`
`SW3`	SKQG 5.2mm	Low-profile SMD tactile button	`SKQGABE010` Alps Alpine Datasheet ↗	`SW_SPST_SKQG_WithoutStem`
`SW4`	SKQG 5.2mm	Low-profile SMD tactile button	`SKQGABE010` Alps Alpine Datasheet ↗	`SW_SPST_SKQG_WithoutStem`
`SW5`	SPDT SLIDE	SPDT slide switch between 3V3 and GND	`JS102011SAQN` C&K Datasheet ↗	`SW_SPDT_CK_JS102011SAQN`

Signals#

Net labels used in the schematic, which are also the names the HDL top level should use.

3V3 BTN1 BTN1_N BTN2 BTN2_N BTN3 BTN3_N BTN4 BTN4_N GND SLIDE SLIDE_C

Production status#

Schematic ERC	0 violations
PCB layout	complete
DRC	0 violations
Fab package	exported (24 gerbers + drill + CPL + BOM)
Fabricated	no — design stage only

Source: boards/sensor-modules/axs-001-buttons

Catalog #1 in the AruviX sensor line (../README.md), level L1 (GPIO). The intended first board: read inputs, debounce in fabric, detect edges.

Status: schematic generated, ERC clean (0/0), netlist reviewed. PCB layout not started. Not released.

Design#

Four Alps SKQGABE010 tactile buttons, active low (10 kΩ pull-up to 3V3, button shorts to GND). No hardware debouncing on purpose — RC debouncing would defeat the lesson.
One C&K JS102011SAQN SPDT slide switch between 3V3 and GND, so SLIDE always carries a defined level.
Every module-driven line leaves through a 100 Ω series resistor (line-wide miswire-tolerance rule).

PMOD pin	1	2	3	4	5	6	7	8	9	10	11	12
Net	BTN1	BTN2	BTN3	BTN4	GND	3V3	SLIDE	NC	NC	NC	GND	3V3

Regenerate#

python3 generate_design.py

Remaining for release#

[ ] PCB layout (20 × 25 mm outline), DRC, fab outputs
[ ] hdl/: debouncer + edge detector cores, testbench, ECP5 demo
[ ] BOM export and availability check, design-review checklist