HardLabs

Meshboy

Milk-Cool·meshboy·kicad/meshboy.kicad_pcb

Meshboy PCB layout, top view — open source RP2040/RP2350 board by Milk-Cool

About the Meshboy PCB

Meshboy is an open source RP2040/RP2350 PCB design by Milk-Cool, published on GitHub under the MIT license. It is a 2-layer board measuring 51 × 60.7 mm, with 46 components from 21 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the HELTEC_HT-CT62, W25Q16JVSS, NCP1117IST33T3G, TXS0108EPWR and TXS0104EPWR. By type, the board carries 22 capacitors, 8 ICs, 8 resistors, 3 connectors, 3 switches and 2 crystals.

It belongs with the retro computing, rf & radio and iot & wireless designs in this gallery.

From the project

a meshtastic gameboy cartridge

this is a cartridge that lets you chat in your local meshtastic network using your gameboy! it's got two antenna slots, first of which has to be a 2.4 ghz antenna and the second of which should be a lora antenna (with the frequency depending on the HT-CT62 model that you use). it's also got a ROM emulator with a custom ROM built specifically for this hardware that allows you to interface with the meshtastic controller chip, which in this case is an ESP32C3! and all of that runs on a gameboy!! isn't that just cool?

Meshboy, from the project README
From the project README

Main components on the Meshboy

HELTEC_HT-CT62RP2040W25Q16JVSSNCP1117IST33T3GTXS0108EPWRTXS0104EPWR

Meshboy bill of materials (BOM)

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

QtyPartRefs
1
HELTEC_HT-CT62
HT-CT62
U1
1
RP2040
U2
1
W25Q16JVSS
U3
1
NCP1117IST33T3G
NCP1117-3.3_SOT223
U4
3
TXS0108EPWR
TXS0108EPW
U5, U6, U7
1
TXS0104EPWR
TXS0104EPW
U8
1
DSX321G 12MHz
DSX321G-12MHZ
KDS(大真空)
X1
1
NX3215SA-32.768K-STD-MUA-8
NX3215SA-32.768KHZ
NDK
X2
1
GameBoy_GamePak_DMG-09
J1
2
MOLEX-105017-0001
USB_B_Micro
J2, J3
3
SW_Push
SW1, SW2, SW3
3
CC0603KRX7R7BB105
1u
C1, C9, C19
10
CC0603KRX7R7BB104
100n
C2, C3, C4, C5, C6, C7, C8, C10 +2
2
GRM1885C1H150J
15p
C13, C14
4
CC0603KRX5R6BB106
10u
C15, C18, C21, C22
2
CC0603JRNPO8BN220
22p
C16, C17
1
GRM188R61A225K
2.2u
C20
2
RC0603FR-0727R4L
27.4
R1, R2
2
RC0603FR-071KL
1k
R3, R4
2
AC0603FR-0710KL
10k
R5, R6
Show 1 more
QtyPartRefs
2
RC0603JR-0722RL
22
R7, R8

Meshboy design files

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

Meshboy: common questions

What microcontroller does the Meshboy use?

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

How big is the Meshboy PCB?

The Meshboy measures 51 × 60.7 mm, has 2 copper layers and is 0.8 mm thick.

How many components are on the Meshboy?

46 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 Meshboy design files?

From the Milk-Cool/meshboy 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 Meshboy design in my own project?

Yes, under the terms of its MIT license, which Milk-Cool chose for the repository.

Can I test firmware for the Meshboy 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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