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Divtiesus maple

anarsoul·divtiesus_maple·sch/rev_2/divtiesus.kicad_pcb

Divtiesus maple PCB layout, top view — open source ESP8266 board by anarsoul
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About the Divtiesus maple PCB

Divtiesus maple is an open source ESP8266 PCB design by anarsoul, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 76.5 × 56.9 mm, with 41 components from 22 distinct parts.

Its main chip is the ESP-12E, from the ESP8266 family. Other key parts include the EPM240T100, 628128, 28C64, LM1117MP-3.3 and 74HCT165D. By type, the board carries 15 capacitors, 11 resistors, 6 ICs, 3 connectors, 3 switches and 1 crystal.

It belongs with the iot & wireless designs in this gallery.

From the project

DivTiesus (DivMMC) Maple Edition

You can buy me a coffee if you want to say thank you.

- The oscillator does not need to be 24 MHz, but if you use a different value, you'll have to resynthesize CPLD image, otherwise WiFi will not work - I usually start with placing the CPLD first and programming it. Note: you'll need to supply 3.3V in order to program CPLD, there are GND and 3.3V test points left for this purpose. I source CPLDs from Aliexpress and some of them are coming dead. It is easier to test and replace it before the rest of the components are populated. - Then place the passives (resistors, resistor arrays…

Divtiesus maple, from the project README
From the project README

Main components on the Divtiesus maple

EPM240T10062812828C64ESP-12ELM1117MP-3.374HCT165D

Divtiesus maple bill of materials (BOM)

41 components, 22 distinct parts.

QtyPartRefs
1
EPM240T100
U1
1
628128
U2
1
28C64
U3
1
ESP-12E
U4
1
LM1117MP-3.3
U5
1
74HCT165D
U6
1
24MHz
X1
1
JTAG
J1
1
Joystick
J2
1
SD_Card
J3
1
RESET
SW1
1
NMI
SW2
1
SW_DIP_x02
SW3
1
ZXBUS
Z1
1
SD Act
D1
12
100nF
C1, C2, C3, C4, C5, C6, C7, C8 +4
3
10uF
C9, C10, C14
3
10K
R1, R4, R6
1
22K
R5
2
1K
R8, R10
Show 2 more
QtyPartRefs
2
510
R9, R11
3
10K
RN1, RN2, RN3

Divtiesus maple design files

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

Divtiesus maple: common questions

What microcontroller does the Divtiesus maple use?

The Divtiesus maple is built around the ESP-12E, from the ESP8266 family.

How big is the Divtiesus maple PCB?

The Divtiesus maple measures 76.5 × 56.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Divtiesus maple?

41 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the Divtiesus maple design files?

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

Can I use the Divtiesus maple design in my own project?

Yes, under the terms of its GPL-3.0 license, which anarsoul chose for the repository.

Can I test firmware for the Divtiesus maple without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.

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