HardLabs

ThumbMuncher

Alsa2·ThumbMuncher·IntegratedMotorController_pcb/DARPA_MCTR.kicad_pcb

ThumbMuncher PCB layout, top view — open source RP2040/RP2350 board by Alsa2

About the ThumbMuncher PCB

ThumbMuncher is an open source RP2040/RP2350 PCB design by Alsa2, published on GitHub. It is a 4-layer board measuring 52 × 51 mm, with 82 components from 38 distinct parts.

Its main chip is the SC0914(13), from the RP2040/RP2350 family. Other key parts include the TCAN3413DR, FM24CL64B-GTR, TPSM843521RCJR, W25Q128JVSIQ and INA219AIDR. By type, the board carries 33 capacitors, 21 resistors, 8 connectors, 7 ICs, 2 crystals and 2 switches.

From the project

Darpa Lift Challenge Code Repo

Main components on the ThumbMuncher

TCAN3413DRFM24CL64B-GTRTPSM843521RCJRW25Q128JVSIQSC0914(13)INA219AIDRMCP2518FDT-E/QBB

ThumbMuncher bill of materials (BOM)

82 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TCAN3413DR
IC2
1
FM24CL64B-GTR
IC3
1
TPSM843521RCJR
U1
1
W25Q128JVSIQ
W25Q128JVS
U2
1
SC0914(13)
RP2040
U3
1
INA219AIDR
U4
1
MCP2518FDT-E/QBB
MCP2518FDT-E_QBB
U5
1
AO3400A
Q1
1
ABM8-272-T3
Y1
1
ABM3-20.000MHZ-D2Y-T
Y2
1
10103594-0001LF
USB_B_Micro
J1
2
0436500301
436500301
J2, J3
1
0436500401
436500401
J4
3
0436500201
436500201
J5, J8, J9
1
BM03B-SRSS-TBLFSN
J6
1
SMTB-1240-S-R
Buzzer
BZ1
1
SMAJ13A
CR1
1
B340A-13-F
CR2
1
TX2-12V-TH
K1
2
EVQ-P2602W
SW_Push
SW2, SW3
Show 18 more
QtyPartRefs
1
TPS561208DDCR
VR1
1
QBLP601-S3
RED LED
D1
1
150060GS75020
LED
D3
1
SDR0403-3R3ML
3.3u
L1
3
GRM21BR61C106KE15L
10u
C1, C17, C20
4
GRM1555C1H150JA01D
15p
C2, C3, C25, C26
1
UCD1V101MCL6GS
C4
17
GRM155R71C104KA88D
100n
C5, C6, C7, C9, C11, C12, C13, C14 +9
2
CL05A105KP5NNNC
1u
C8, C10
6
GRM21BR61A226ME44L
22u
C19, C22, C23, C30, C31, C34
3
RC0402FR-071KL
1k
R1, R5, R11
3
RC0402FR-0727RL
27
R3, R4, R15
1
RC0603FR-0782KL
82k
R6
6
RC0603FR-0710KL
10k
R7, R8, R10, R12, R17, R18
1
WSL2512R0500FEA
0.05
R9
1
RC0603FR-0733K2L
33.2k
R13
1
RC0402FR-07120RL
120
R16
5
RC0603FR-074K7L
4.7k
R19, R20, R21, R22, R23

ThumbMuncher design files

The KiCad project lives in the Alsa2/ThumbMuncher repository on GitHub; these links point at the commit this page was built from.

ThumbMuncher: common questions

What microcontroller does the ThumbMuncher use?

The ThumbMuncher is built around the SC0914(13), from the RP2040/RP2350 family.

How big is the ThumbMuncher PCB?

The ThumbMuncher measures 52 × 51 mm, has 4 copper layers and is 1 mm thick.

How many components are on the ThumbMuncher?

82 components, from 38 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 ThumbMuncher design files?

From the Alsa2/ThumbMuncher 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 ThumbMuncher design in my own project?

The repository has no license, so all rights stay with Alsa2. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ThumbMuncher 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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