HardLabs

Littol

baconspoon85·littol·littolRP2040/littolRP2040.kicad_pcb

Littol PCB layout, top view — open source RP2040/RP2350 board by baconspoon85

About the Littol PCB

Littol is an open source RP2040/RP2350 PCB design by baconspoon85, published on GitHub. It is a 2-layer board measuring 209.6 × 66.7 mm, with 80 components from 21 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the SRV05-4, XC6206P332MR and W25Q128JVSIM. By type, the board carries 16 capacitors, 15 diodes, 9 resistors, 4 ICs, 1 crystal and 1 connector.

From the project

3 row 30% katakana with exploded spacebar

Main components on the Littol

SRV05-4XC6206P332MRW25Q128JVSIMRP2040

Littol bill of materials (BOM)

80 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SRV05-4
U1
1
XC6206P332MR
U2
1
W25Q128JVSIM
U3
1
RP2040
U4
1
X322512MSB4SI
Y1
1
TYPE-C-31-M-12
J1
1
BOOTSEL
BOOT1
1
500MA
500mA
F1
2
CPG151101S11
MX1, MX29
2
CPG151101S11
MX2, MX30
26
CPG151101S11
MX3, MX4, MX5, MX6, MX7, MX8, MX9, MX10 +18
1
CPG151101S11
MX19
1
RESET
RESET1
15
BAV70
D1, D2, D3, D4, D5, D6, D7, D8 +7
5
1UF
1u
C1, C2, C5, C6, C10
2
22PF
22p
C3, C4
8
0.1UF
100n
C7, C8, C11, C12, C13, C14, C15, C16
1
10UF
10u
C9
5
5K1
5k1
R1, R2, R6, R7, R9
2
27
R3, R4
Show 1 more
QtyPartRefs
2
1k
R5, R8

Littol design files

The KiCad project lives in the baconspoon85/littol repository on GitHub; these links point at the commit this page was built from.

Littol: common questions

What microcontroller does the Littol use?

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

How big is the Littol PCB?

The Littol measures 209.6 × 66.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Littol?

80 components, from 21 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 Littol design files?

From the baconspoon85/littol 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 Littol design in my own project?

The repository has no license, so all rights stay with baconspoon85. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Littol 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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