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DevRamCart RevA

Danjovic·MSX·DevRamCart/circuit/revA/DevRamCart_RevA.kicad_pcb

DevRamCart RevA PCB layout, top view — open source ESP32 board by Danjovic
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About the DevRamCart RevA PCB

DevRamCart RevA is an open source ESP32 PCB design by Danjovic, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 100 × 64.7 mm, with 37 components from 19 distinct parts.

Its main chip is the ESP32-C3_SUPERMINI, from the ESP32 family. Other key parts include the 74AHC541, 74HC595, HM62256BLP and 74AHCT595. By type, the board carries 12 resistors, 9 capacitors, 7 ICs, 3 diodes, 2 transistors and 2 connectors.

It belongs with the retro computing designs in this gallery.

From the project

Coletânea de projetos para MSX

1) - Cartucho Caps Lock para Expert, descrito em http://danjovic.blogspot.com/2016/10/cartucho-caps-lock-para-expert.html

Main components on the DevRamCart RevA

74AHC54174HC595HM62256BLP74AHCT595

DevRamCart RevA bill of materials (BOM)

37 components, 19 distinct parts.

QtyPartRefs
3
74AHC541
U1, U5, U6
2
74HC595
U2, U7
1
HM62256BLP
U3
1
74AHCT595
U4
1
ESP32-C3_SUPERMINI
M1
2
BC338
Q1, Q2
1
~
CN1
1
Conn_01x14_Socket
J1
1
SW_Push
SW1
1
LED
D1
1
WS2812B
D2
1
D
D3
7
100n
C1, C2, C3, C4, C5, C6, C7
1
100u
C8
1
100n
C9
1
1k
R1
4
10K
R2, R3, R4, R5
1
470
R6
6
1k
R7, R8, R9, R10, R11, R12

DevRamCart RevA design files

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

DevRamCart RevA: common questions

What microcontroller does the DevRamCart RevA use?

The DevRamCart RevA is built around the ESP32-C3_SUPERMINI, from the ESP32 family.

How big is the DevRamCart RevA PCB?

The DevRamCart RevA measures 100 × 64.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DevRamCart RevA?

37 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the DevRamCart RevA design files?

From the Danjovic/MSX repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the DevRamCart RevA design in my own project?

Yes, under the terms of its GPL-2.0 license, which Danjovic chose for the repository.

Can I test firmware for the DevRamCart RevA without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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