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FlipDotDisplay

comakingspace·FlipDotDisplay·Schematics_H-Bridge/Flipdot_H-Bridge.kicad_pcb

FlipDotDisplay PCB layout, top view — open source ESP8266 board by comakingspace

About the FlipDotDisplay PCB

FlipDotDisplay is an open source ESP8266 PCB design by comakingspace, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 53 components from 24 distinct parts.

Its main chip is the ESP8266_D1_MINI, from the ESP8266 family. Other key parts include the 74HC595, L293D, L7805 and ATMEGA328P-PU. By type, the board carries 28 ICs, 8 capacitors, 7 resistors, 5 connectors, 3 diodes and 1 crystal.

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

From the project

They were bought at the Makerfaire Hannover 2016.

They were bought at the Makerfaire Hannover 2016.

A dot on the display is switched by magnetising an inductor, which causes the colored dot (with a small magnet embedded) to change the orientation. Because the core of the inductor stays magnetized the state of the dot is stable even without being powered.

The inductors of the pixels are hooked up in an array with 24x16. Each column is connected to a single pin of the connector and each row has two inputs; one for positive voltage and one for negative (see FlipDotSchematic). By applying a voltage to a row and a column the corresponding pixel…

FlipDotDisplay, from the project README
From the project README

Main components on the FlipDotDisplay

74HC595L293DESP8266_D1_MINIL7805ATMEGA328P-PU

FlipDotDisplay bill of materials (BOM)

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

QtyPartRefs
5
74HC595
U1, U2, U7, U8, U13
20
L293D
U3, U4, U5, U6, U9, U10, U11, U12 +12
1
ESP8266_D1_MINI
ESP8266_D1_Mini
U20
1
L7805
U27
1
ATMEGA328P-PU
U28
1
Crystal
Y1
1
Barrel_Jack
J1
1
CONN_02X13
P1
2
CONN_02X08
P2, P3
1
CONN_02X03
P4
1
SW_Push
SW1
1
Led_Green
D1
1
Led_Yellow
D2
1
Led_Red
D3
3
100NF
100nF
C1, C5, C8
1
10UF
10uF
C2
1
0.33UF
0.33uF
C3
1
1UF
1uF
C4
2
22P
22p
C6, C7
1
1k
R1
Show 4 more
QtyPartRefs
1
2k
R2
3
1.5K
R3, R4, R5
1
10K
10k
R6
1
1M
R7

FlipDotDisplay design files

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

FlipDotDisplay: common questions

What microcontroller does the FlipDotDisplay use?

The FlipDotDisplay is built around the ESP8266_D1_MINI, from the ESP8266 family.

How big is the FlipDotDisplay PCB?

The FlipDotDisplay measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the FlipDotDisplay?

53 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 FlipDotDisplay design files?

From the comakingspace/FlipDotDisplay repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the FlipDotDisplay design in my own project?

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

Can I test firmware for the FlipDotDisplay 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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