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2 layers25.7 × 27.7 mmOutatime pro, the printed circuit board in 3D

Custom PCB for Casio CA-53W based on Sensor Watch Pro

Size
25.7 × 27.7 mm
Copper layers
2
Thickness
0.6 mm
Parts
56
Nets
105
Pads
290
Tracks, vias
1,255, 125
Pours
258
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
23 Aug 2026
Updated
7 Nov 2026

Overview

Outatime pro is an open-source printed circuit board by evyd13, from the evyd13/outatime-pro repository on GitHub. It is a 2-layer board of 25.7 × 27.7 mm with 56 parts on 105 nets, routed with 1,255 tracks and 125 vias.

It is built around the ALS-PT19-315C/L177/TR8, MAX40200ANS+T and LIS2DW12TR-MS, with the MIC5365-3.3YMT-TZ, PAM8904JPR and USBLC6-2P6 among its other parts. Its parts include 22 capacitors, 9 resistors, 7 ICs, 2 connectors and 1 transistor. It belongs with the SAM D and SAM boards of this library.

Main components

9

README

README.md

Outatime Pro

A PCB for Casio CA-53W or 3208 module based on the Sensor Watch Pro. It has the same features!

PCB view

Firmware

Firmware is being worked on here.

WARNING

THIS IS NOT TESTED IN ANY WAY. DO NOT ORDER THIS THINKING IT WILL WORK. FIRMWARE DOESN'T EXIST FOR IT YET. IT IS A WORK IN PROGRESS. However, the PCB design is done.

Version number

Version number is date formate yyMMDD, August 25th 2026 would be v260825.

To-Do

The following still needs work:

  • Firmware needs to be finished (work has started!)
  • figure out if the selection signals for PAM8904 need to be connected to GPIO or always HIGH.
  • PCB needs to be ordered and tested (I intend to do this in a few months time, need to gather funds for a prototype)
  • It needs to be worn and loved!!

Bootloader

I contacted devolov, they said to me that the firmware needs to be flashed with utils/flash_watch_pyruler using Adafruit PyRuler or Trinket. (I intend to use Seeed XIAO or maybe Pi Pico.)

Bootloader.h is generated from https://github.com/joeycastillo/uf2-samdx1. (Thanks @devolov!)

LCD

The LCD is fairly simple. It has 35 pins, of which the leftmost is not connected. The first 3 connected pins are common, the rest are segments. Mapping can be found within the emulator svg file or watch_common_display.h. (Seg08 and seg01 are swapped in software to allow blinking)

Thanks to and relevant projects

Parts

56
QtyValueFootprintReferences
100.1uFCapacitor_SMD:C_0402_1005MetricC1, C4, C5, C9, C10, C11, C18, C19, C21, C22
61uFCapacitor_SMD:C_0402_1005MetricC6, C7, C8, C13, C14, C15
310kResistor_SMD:R_0402_1005MetricR6, R7, R8
2100Resistor_SMD:R_0402_1005MetricR9, R11
210k 0.1%Resistor_SMD:R_0402_1005MetricR3, R5
210uFCapacitor_SMD:C_0603_1608MetricC12, C20
212.5pFCapacitor_SMD:C_0402_1005MetricC2, C3
22.2uFCapacitor_SMD:C_0402_1005MetricC16, C17
2MAX40200ANSPackage_BGA:WLP-4_0.728x0.728mm_Layout2x2_P0.35mmU4, U5
1+3v3OutatimePro:TestPoint_Pad_D1.0mmTP3
110uHInductor_SMD:L_0603_1608MetricL1
132.768kHzOutatimePro:Crystal_SMD_1610-2Pin_1.6x1.0mmY1
1330Resistor_SMD:R_0402_1005MetricR12
149.9Resistor_SMD:R_0402_1005MetricR10
1ALS-PT19-315C/L177/TR8OutatimePro:ALS-PT19-315CQ1
1ATSAML22N18A-CFUTOutatimePro:UFBGA-100_6.0x6.0mm_Layout11x11_P0.5mm_Ball0.3mm_Pad0.25mm_NSMDU1
1EVPAWED40OutatimePro:Panasonic_EVPAW_EVP6ASW1
1GNDOutatimePro:TestPoint_Pad_D1.0mmTP4
1LIS2DW12TROutatimePro:LGA-12_2x2mm_P0.5mmU6
1LOGOOutatimePro:ghostG***
1LTST-C19HE1WTOutatimePro:LED_LiteOn_LTST-C19HE1WTRGB1
1MIC5365-3.3YMTPackage_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mmU2
1NCP15XH103F03RCOutatimePro:TH_0402_1005MetricTH1
1OSO_SWDOutatimePro:OSO_SWD_2x3J3
1PAM8904JPROutatimePro:PAM8904JPRIC1
1PB01OutatimePro:TestPoint_Pad_D1.0mmTP5
1PB02OutatimePro:TestPoint_Pad_D1.0mmTP6
1USB+OutatimePro:TestPoint_Pad_D1.0mmTP1
1USB-OutatimePro:TestPoint_Pad_D1.0mmTP2
1USBLC6-2P6Package_TO_SOT_SMD:SOT-666U3
1USB_B_Micro_PCB_Edge_receptacleConnector_USB_PCB_Edge:USB_Micro-B_PCB_receptacle_5pin_2mm_cutoutJ1
1~OutatimePro:ca53boardBRD1
1~OutatimePro:ca53lcdLCD1
1~OutatimePro:ca53keypadKPD1

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Questions

How big is the Outatime pro PCB?

It measures 25.7 × 27.7 mm and has 2 copper layers, 0.6 mm thick.

What parts does the Outatime pro use?

56 parts, built around the ALS-PT19-315C/L177/TR8, MAX40200ANS+T, LIS2DW12TR-MS and MIC5365-3.3YMT-TZ. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Outatime pro KiCad files?

From the evyd13/outatime-pro repository on GitHub, at the commit this page was made from: the board is PCB/OutatimePro.kicad_pcb and its schematic PCB/OutatimePro.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Outatime pro design in my own project?

Its repository states no licence, so its author keeps all rights: ask evyd13 before reusing the design.