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Blinkekatze

TobleMiner·blinkekatze

Blinkekatze PCB layout, top view — open source ESP32 board by TobleMiner
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About the Blinkekatze PCB

Blinkekatze is an open source ESP32 PCB design by TobleMiner, published on GitHub. It is a 4-layer board measuring 83 × 83 mm, with 106 components from 33 distinct parts.

Its main chip is the ESP32-C3-MINI-1, from the ESP32 family. Other key parts include the BQ27546, SRV05-4, FM2113, SPL06-001 and C503097. By type, the board carries 44 capacitors, 28 resistors, 16 diodes, 10 ICs, 2 transistors and 2 inductors.

It belongs with the displays & leds, power & battery and sensors designs in this gallery.

From the project

Blinkekatze, a replacement PCB to turn cat themed night-lights into interactive light displays

This is a replacement PCB for one version of cat themed night lights available via various online retailers.

It adds a number of RGB LEDs, sensors and wireless connectivity, enabling an interactive light display synchronized over a large number of Blinkekatzen.

The Blinkekatze is comprised of three PCBs: - The main board (this directory) - The USB board (located in /usb-board) - The original power- and mode-switch board from the nightlight

Blinkekatze, from the project README
From the project README

Main components on the Blinkekatze

ESP32-C3-MINI-1BQ27546SRV05-4FM2113SPL06-001C503097LTR-303ALS-01BQ24295TPS63001LIS3DH

Blinkekatze bill of materials (BOM)

106 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3-MINI-1
U1
1
BQ27546
U2
1
SRV05-4
U3
1
FM2113
U4
1
SPL06-001
U5
1
C503097
~
U6
1
LTR-303ALS-01
U7
1
BQ24295
U8
1
TPS63001
U9
1
LIS3DH
U10
2
AO3400A
Q1, Q2
1
C2919481
USB board
J4
1
C2979183
B+
BTT1
1
C2979183
B-
BTT2
1
C187596
4A
F1
16
SK6812MINI-012
D1, D2, D3, D4, D5, D6, D7, D8 +8
2
2.2UH
2.2uH
L2, L4
24
100NF
100nF
C1, C2, C3, C4, C5, C6, C7, C8 +16
1
10UF
10uF
C17
9
1UF
1uF
C18, C19, C25, C33, C66, C67, C68, C69 +1
Show 13 more
QtyPartRefs
1
22UF
22uF
C28
1
4.7UF
4.7uF
C29
3
10UF
10uF
C30, C31, C32
5
10UF
10uF
C65, C71, C72, C74, C75
11
10K
10k
R1, R9, R13, R14, R15, R16, R17, R18 +3
7
100R
R2, R5, R6, R7, R10, R11, R12
1
220R
R3
1
10MR
10mR
R4
1
1k
R8
2
330
R19, R20
2
100K
100k
R23, R44
2
4.7K
4.7k
R45, R46
1
C17168
0R
R48

Blinkekatze design files

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

Blinkekatze: common questions

What microcontroller does the Blinkekatze use?

The Blinkekatze is built around the ESP32-C3-MINI-1, from the ESP32 family.

How big is the Blinkekatze PCB?

The Blinkekatze measures 83 × 83 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Blinkekatze?

106 components, from 33 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 Blinkekatze design files?

From the TobleMiner/blinkekatze 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 Blinkekatze design in my own project?

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

Can I test firmware for the Blinkekatze 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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