HardLabs

Split flap fae

codingcatgirl·split-flap-fae-pcb

Split flap fae PCB layout, top view — open source ESP8266 board by codingcatgirl
Simulate this board

About the Split flap fae PCB

Split flap fae is an open source ESP8266 PCB design by codingcatgirl, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 40 × 80 mm, with 39 components from 24 distinct parts.

Its main chip is the ESP-12E, from the ESP8266 family. Other key parts include the TPS5430, ULN2003A and ATMEGA328P-A. By type, the board carries 12 capacitors, 9 connectors, 8 resistors, 4 ICs, 3 diodes and 1 crystal.

It belongs with the displays & leds designs in this gallery.

From the project

Alternative drop-in replacement PCB for David Kingsman's split-flap display

This repository contains an alternative, improved, (near) drop-in replacement PCB for David Kingsman's Split-Flap Display.

Please note that due to some changes in pinout, you need to use evilscientress' improved fork of the firmware, which was specifically created along with this PCB.

- Identical PCB outline, connectors and connector positions. - Removed Arduino Nano, use its Atmega328P directly, saving cost and space. - Run the Atmega328P on 3V3, removing the need for a 5V rail and logic conversion and increasing power efficiency by using a step-down converter (TPS5430). The entire…

Split flap fae, from the project README
From the project README

Main components on the Split flap fae

TPS5430ULN2003AATMEGA328P-AESP-12E

Split flap fae bill of materials (BOM)

39 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TPS5430
U1
1
ULN2003A
U2
1
ATMEGA328P-A
ATmega328P-A
U3
1
ESP-12E
U4
1
16MHZ
16MHz
Y2
2
CONN_01X04_PIN
Conn_01x04_Pin
J1, J2
1
CONN_01X05_PIN
Conn_01x05_Pin
J3
1
C492425
AddressJumpers
J4
1
C144394
HallSensor
J5
1
AVR-ISP-6
J6
1
SERIAL-328P
Serial-328P
J7
1
SERIAL-ESP12E
Serial-ESP12E
J8
1
WS2815
J9
1
C318884
RESET
SW1
1
LED
D1
2
SS54
D2, D3
1
47UH
47uH
L1
2
22PF
22pF
C1, C2
3
10UF
10uF
C3, C5, C7
6
100N
100n
C4, C6, C9, C10, C12, C13
Show 4 more
QtyPartRefs
1
220UF
220uF
C11
1
220
R1
6
10K
10k
R2, R3, R5, R6, R7, R8
1
5K9
5k9
R4

Split flap fae design files

The KiCad project lives in the codingcatgirl/split-flap-fae-pcb repository on GitHub; these links point at the commit this page was built from.

Split flap fae: common questions

What microcontroller does the Split flap fae use?

The Split flap fae is built around the ESP-12E, from the ESP8266 family.

How big is the Split flap fae PCB?

The Split flap fae measures 40 × 80 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Split flap fae?

39 components, from 24 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 Split flap fae design files?

From the codingcatgirl/split-flap-fae-pcb 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 Split flap fae design in my own project?

Yes, under the terms of its Apache-2.0 license, which codingcatgirl chose for the repository.

Can I test firmware for the Split flap fae 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.

Similar boards