HardLabs

MegaProgrammer

clydeshaffer·gametank·Hardware/KiCad/tools/cartflasher/MegaProgrammer.kicad_pcb

MegaProgrammer PCB layout, top view — open source AVR/Arduino board by clydeshaffer
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About the MegaProgrammer PCB

MegaProgrammer is an open source AVR/Arduino PCB design by clydeshaffer, published on GitHub. It is a 4-layer board measuring 89 × 93 mm, with 32 components from 20 distinct parts.

Its main chip is the ATMEGA2560-16AU, from the AVR/Arduino family. Other key parts include the FT232RNL-REEL and 5530843-3. By type, the board carries 15 capacitors, 6 resistors, 3 ICs, 3 diodes, 2 connectors and 1 crystal.

From the project

design files for the gametank hardware implementation

The current GameTank version that actually fits into a neat case and looks like a console is Prototype3.

The "Combined" folder contains most of Prototype3, and is named such because certain system sections were previously on separate boards.

Prototype1 had a backplane design where Video, Audio, and Input boards attached into slots perpendicular to the motherboard.

Main components on the MegaProgrammer

ATMEGA2560-16AUFT232RNL-REEL5530843-3

MegaProgrammer bill of materials (BOM)

32 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA2560-16AU
ATmega2560-16A
U1
1
FT232RNL-REEL
FT232RL
U3
1
5530843-3
GT_CART3GT_SLOT
U$1
1
TSX-3225 16.0000MF09Z-AC0
Crystal_GND24
Y1
1
USB4110-GF-A
USB_C_Receptacle_USB2.0
J1
1
M20-8760342
ICSP
J2
1
EVP-BFAC1A000
SW_Push
SW1
1
LTST-C170KFKT
TxLED
D1
1
LTST-C170KFKT
RxLED
D2
1
LTST-C170GKT
PwrLED
D3
1
MI0805K400R-10
FerriteBead
FB1
8
CC0805KRX7R9BB104
0.1uF
C1, C4, C7, C8, C12, C13, C14, C15
2
CC0805JRNPO9BN470
47pF
C2, C3
1
TAJR475K010RNJ
4.7uF
C5
1
CC0805KRX7R9BB103
10nF
C6
2
CC0805DRNPO9BN8R0
8pF
C9, C10
1
CC0805JRNPO9BN220
22pF
C11
2
RC0805JR-075K1L
5k1
R1, R2
3
RC0805JR-07270RL
270
R3, R4, R6
1
RC0805FR-0710KL
10k
R5

MegaProgrammer design files

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

MegaProgrammer: common questions

What microcontroller does the MegaProgrammer use?

The MegaProgrammer is built around the ATMEGA2560-16AU, from the AVR/Arduino family.

How big is the MegaProgrammer PCB?

The MegaProgrammer measures 89 × 93 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the MegaProgrammer?

32 components, from 20 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 MegaProgrammer design files?

From the clydeshaffer/gametank 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 MegaProgrammer design in my own project?

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

Can I test firmware for the MegaProgrammer without the hardware?

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

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