HardLabs

Main

CharHanMaker·CharHanMaker·PCB/MainPCB/MainPCB.kicad_pcb

Main PCB layout, top view — open source RP2040/RP2350 board by CharHanMaker

About the Main PCB

Main is an open source RP2040/RP2350 PCB design by CharHanMaker, published on GitHub. It is a 2-layer board measuring 86.4 × 75.8 mm, with 61 components from 23 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the MCP1401T-E_OT and AZ1117CH-3.3TR. By type, the board carries 16 connectors, 13 capacitors, 13 resistors, 9 diodes, 4 ICs and 3 transistors.

From the project

CharHan!!-YouTube [](https://www.youtube.com/watch?v=2m1POazWTIs)

CharHan!!-YouTube [](https://www.youtube.com/watch?v=2m1POazWTIs)

このようなチャーハンファームを作ることで省人化できるのではないかと思っております。

- Program - ロボットを動かすソフトウェアが入っています。PlatformIOで開発を行いました。 - SystemIdentificationDataにMATLABでシステム同定を行ったプログラムが入っています。 - 以下がシステム同定を行うために使用した組み込み側のデータロギングのプログラムです。シリアルモニターで受け取った文字列を元にCSVで書き出して整形してシステム同定を行いました。 - Program/maintomix/src/Modes/SystemIdentification2 - Program/maintomix/src/Modes/SystemIdentification2 - PCB - 基板データが入っています。KiCad7で開発しました。 - Image - README.mdの画像が入っています。

Main, from the project README
From the project README

Main components on the Main

PicoMCP1401T-E_OTAZ1117CH-3.3TR

Main bill of materials (BOM)

61 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Pico
U1
2
MCP1401T-E_OT
U2, U3
1
AZ1117CH-3.3TR
U4
2
MTB7D0N6RJ3
Q1, Q2
1
TJ60S04M3L
Q3
3
XT30PW-M
J1, J12, J16
5
JST-XH
J2, J8, J9, J10, J11
6
JST-XH
J3, J5, J6, J7, J14, J15
1
~
J4
1
JST-XH
J13
2
SW_Push
SW1, SW3
1
SW_DPST_X2
SW_DPST_x2
SW2
1
D_Schottky
D1
6
LED
D2, D3, D4, D5, D6, D7
1
ＧＳ１０１０ＦＬ
D8
1
D
D9
2
220U
220u
C2, C4
2
22U
22u
C5, C6
8
0.1U
0.1u
C7, C9, C10, C11, C12, C13, C14, C15
1
220U
220u
C8
Show 3 more
QtyPartRefs
5
1k
R1, R2, R6, R7, R9
6
10K
10k
R3, R4, R5, R8, R10, R13
2
51
R11, R12

Main design files

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

Main: common questions

What microcontroller does the Main use?

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

How big is the Main PCB?

The Main measures 86.4 × 75.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Main?

61 components, from 23 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 Main design files?

From the CharHanMaker/CharHanMaker 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 Main design in my own project?

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

Can I test firmware for the Main 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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