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Bottom

not-sample-text·ApexPad·hardware/pcb/bottom/bottom.kicad_pcb

Bottom PCB layout, top view — open source board by not-sample-text

About the Bottom PCB

Bottom is an open source PCB design by not-sample-text, published on GitHub. It is a 2-layer board measuring 65 × 120 mm, with 47 components from 7 distinct parts.

Other key parts include the TPS22918DBVR. By type, the board carries 22 resistors, 12 capacitors, 10 diodes, 2 ICs and 1 connector.

It belongs with the iot & wireless and displays & leds designs in this gallery.

From the project

The PROS3 Macropad is a versatile, open-source 12-key macropad built around the powerful ESP32-S3. Designed as a university thesis project, it features a rotary encoder, OLED display, RGB underglow, and a complete software ecosystem for deep customization.

The PROS3 Macropad is a versatile, open-source 12-key macropad built around the powerful ESP32-S3. Designed as a university thesis project, it features a rotary encoder, OLED display, RGB underglow, and a complete software ecosystem for deep customization.

A collection of renders showcasing the hardware.

This repository contains the complete engineering files (hardware, firmware, and software) for a highly programmable macropad designed to streamline digital workflows.

Bottom, from the project README
From the project README

Main components on the Bottom

TPS22918DBVR

Bottom bill of materials (BOM)

47 components, 7 distinct parts.

QtyPartRefs
1
TPS22918DBVR
IC1
1
~
U1
1
Conn_01x15_Socket
J1
10
SK6812MINI
D1, D2, D3, D4, D5, D6, D7, D8 +2
12
0.1uF
C1, C2, C3, C4, C5, C6, C7, C8 +4
12
10k
R1, R2, R3, R4, R5, R6, R7, R8 +4
10
220
R11, R12, R13, R14, R15, R16, R17, R18 +2

Bottom design files

The KiCad project lives in the not-sample-text/ApexPad repository on GitHub; these links point at the commit this page was built from.

Bottom: common questions

How big is the Bottom PCB?

The Bottom measures 65 × 120 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bottom?

47 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the Bottom design files?

From the not-sample-text/ApexPad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Bottom design in my own project?

The repository has no license, so all rights stay with not-sample-text. Use it as a reference, and ask the author before reusing the design.

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