HardLabs

Trinketcore

alph4345·test·hardware/trinketcore/trinketcore.kicad_pcb

Trinketcore PCB layout, top view — open source RP2040/RP2350 board by alph4345

About the Trinketcore PCB

Trinketcore is an open source RP2040/RP2350 PCB design by alph4345, published on GitHub. It is a 4-layer board measuring 40 × 60 mm, with 106 components from 48 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the USBLC6-2SC6, BQ25173DSGR, TPS3808G01DBVR, TPS63031DSKR and PCF8563T/5,518. By type, the board carries 37 resistors, 32 capacitors, 9 transistors, 8 ICs, 7 diodes and 6 connectors.

It belongs with the audio, displays & leds and power & battery designs in this gallery.

From the project

TrinketCore puts everything a small rechargeable gadget needs on one 40 × 60 mm board, ready to order assembled from PCBWay:

TrinketCore puts everything a small rechargeable gadget needs on one 40 × 60 mm board, ready to order assembled from PCBWay:

Room for two capacitors. They lie flat on the back, wired in parallel. USB-C charging, with a red "charging" and a green "full" LED. A socket for an OLED or colour TFT module. The microcontroller reads the capacitor's charge and can show it on the screen. An RP2040 microcontroller with 16 MB of flash for code, sounds and pictures. A speaker amplifier**, two buttons, a user LED, a wake-up clock and an expansion header for LEDs, buttons and a lid switch.

Trinketcore, from the project README
From the project README

Main components on the Trinketcore

USBLC6-2SC6BQ25173DSGRTPS3808G01DBVRTPS63031DSKRPCF8563T/5,518RP2040W25Q128JVSIQMAX98357AETE+T

Trinketcore bill of materials (BOM)

106 components, 48 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
USBLC6-2SC6
STMicroelectronics
U1
1
BQ25173DSGR
Texas Instruments
U2
1
TPS3808G01DBVR
Texas Instruments
U3
1
TPS63031DSKR
Texas Instruments
U4
1
PCF8563T/5,518
PCF8563T
NXP
U5
1
RP2040
Raspberry Pi
U6
1
W25Q128JVSIQ
W25Q128JVS
Winbond
U7
1
MAX98357AETE+T
MAX98357A
Analog Devices
U8
3
AO3401A
Alpha & Omega Semiconductor
Q1, Q5, Q7
6
AO3400A
Alpha & Omega Semiconductor
Q2, Q3, Q4, Q6, Q8, Q9
1
Q13FC1350000400
32.768kHz
Epson
Y1
1
ABM8-272-T3
12MHz
Abracon
Y2
1
TYPE-C-31-M-12
USB-C
Korean Hroparts Elec
J1
1
DISPLAY
J4
1
I2C OLED
J5
1
EXPANSION
J6
1
B2B-PH-K-S(LF)(SN)
SPEAKER
J7
1
SM04B-SRSS-TB(LF)(SN)
QWIIC
JST
J8
1
TS-1187A-B-A-B
POWER/A
XKB Connectivity
SW1
1
TS-1187A-B-A-B
B
XKB Connectivity
SW2
Show 28 more
QtyPartRefs
1
B3U-1000P
BOOT
Omron
SW3
1
B3U-1000P
RESET
Omron
SW4
1
LTST-C191KRKT
RED
Lite-On
D1
4
1N4148WS-7-F
1N4148WS
Diodes Incorporated
D2, D3, D4, D6
1
LTST-C191KGKT
GREEN
Lite-On
D5
1
LTST-C191TBKT
BLUE
Lite-On
D7
1
NR3015T1R5N
1.5uH
Taiyo Yuden
L1
1
CL21A475KAQNNNE
4.7uF
Samsung Electro-Mechanics
C1
1
CL10A106KP8NNNC
10uF
Samsung Electro-Mechanics
C2
2
CL05B103KB5NNNC
10nF
Samsung Electro-Mechanics
C3, C7
17
CL05B104KO5NNNC
100nF
Samsung Electro-Mechanics
C5, C10, C13, C14, C15, C18, C19, C20 +9
3
CL05A105KA5NQNC
1uF
Samsung Electro-Mechanics
C6, C26, C27
1
CL10A475KO8NNNC
4.7uF
Samsung Electro-Mechanics
C8
5
CL21A106KAYNNNE
10uF
Samsung Electro-Mechanics
C9, C11, C12, C30, C32
2
CL05C150JB5NNNC
15pF
Samsung Electro-Mechanics
C16, C17
2
RC0402FR-075K1L
5.1k
Yageo
R1, R2
6
RC0402FR-071KL
1k
Yageo
R3, R6, R25, R30, R31, R34
1
RC0402FR-07120KL
120k
Yageo
R4
1
RC0402FR-0733KL
33k
Yageo
R5
1
RC0402FR-0710ML
10M
Yageo
R7
4
RC0402FR-0710KL
10k
Yageo
R8, R21, R22, R35
6
RC0402FR-07100KL
100k
Yageo
R9, R17, R20, R23, R26, R27
7
RC0402FR-071ML
1M
Yageo
R10, R14, R15, R16, R18, R24, R36
1
RC0402FR-07470KL
470k
Yageo
R11
2
RC0402FR-07330KL
330k
Yageo
R12, R13
2
RC0402FR-074K7L
4.7k
Yageo
R28, R29
2
RC0402FR-0727RL
27
Yageo
R32, R33
2
RC0402FR-07100RL
100
Yageo
R37, R38

Trinketcore design files

The KiCad project lives in the alph4345/test repository on GitHub; these links point at the commit this page was built from.

Trinketcore: common questions

What microcontroller does the Trinketcore use?

The Trinketcore is built around the RP2040, from the RP2040/RP2350 family.

How big is the Trinketcore PCB?

The Trinketcore measures 40 × 60 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Trinketcore?

106 components, from 48 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Trinketcore design files?

From the alph4345/test repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Trinketcore design in my own project?

The repository has no license, so all rights stay with alph4345. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Trinketcore without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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