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MyBikesGotLED

mcqn·my-bikes-got-led·electronics/MyBikesGotLED.kicad_pcb

MyBikesGotLED PCB layout, top view — open source ESP32 board by mcqn
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About the MyBikesGotLED PCB

MyBikesGotLED is an open source ESP32 PCB design by mcqn, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 45.2 × 87.1 mm, with 65 components from 42 distinct parts.

Its main chip is the ESP32-C3-MINI-1-N4, from the ESP32 family. Other key parts include the IP5310, RT8097B and SN74AHCT125. By type, the board carries 21 resistors, 14 capacitors, 12 connectors, 5 diodes, 4 ICs and 3 jumpers.

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

From the project

My Baby's Got LED, bike edition

The hardware for MBiGL is based around the ESP32 C3 Mini

Code can be uploaded via USB serial or with an external UART board via J31 (six pin header). More details on the Espressif website

There are four pins available for RGB data output. LEDdata (IO5) and LEDclock (IO6) are the primary outputs. IO3 and IO4 are not connected to the level shifter (U4) by default but can be used as additional channels by bridging JP42 and JP43 with solder if required.

Main components on the MyBikesGotLED

ESP32-C3-MINI-1-N4IP5310RT8097BSN74AHCT125

MyBikesGotLED bill of materials (BOM)

65 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3-MINI-1-N4
U1
1
IP5310
U2
1
RT8097B
U3
1
SN74AHCT125
U4
1
JSM2302
Q1
1
Conn_01x04
J2
4
Conn_01x03
J5, J6, J12, J13
1
Boot jumper
J11
1
Conn_01x01_Pin
J14
1
Serial
J31
1
WS2812
J40
2
Battery_Test_Points
J41, J50
1
Battery
J51
1
Polyfuse
F1
1
Jumper_on
JP5
1
P3 EN
JP42
1
p16 EN
JP43
1
ON/OFF
SW3
1
105450-0101
USBC1
5
LED
D1, D2, D3, D4, D6
Show 22 more
QtyPartRefs
1
MHCC10040-1R0M-R7
L2
1
1.5uH
L3
2
10uF
C1, C2
2
0.1uF/50V(10%)
C10, C41
1
10uF/25V(20%)
C11
1
1uF/16V(10%)
C12
6
22uF
C20, C21, C22, C23, C24, C25
2
22uF X5R
C31, C32
1
1M
R1
2
5.1K
R2, R3
1
2R
R4
4
470R
R5, R6, R41, R42
2
10k
R11, R22
1
R560
R12
2
10k
R13, R14
2
22
R15, R16
1
0
R20
1
100K
R21
1
51K
R26
1
R120
R27
1
91K
R31
1
20K
R32

MyBikesGotLED design files

The KiCad project lives in the mcqn/my-bikes-got-led repository on GitHub; these links point at the commit this page was built from.

MyBikesGotLED: common questions

What microcontroller does the MyBikesGotLED use?

The MyBikesGotLED is built around the ESP32-C3-MINI-1-N4, from the ESP32 family.

How big is the MyBikesGotLED PCB?

The MyBikesGotLED measures 45.2 × 87.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MyBikesGotLED?

65 components, from 42 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 MyBikesGotLED design files?

From the mcqn/my-bikes-got-led 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 MyBikesGotLED design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which mcqn chose for the repository.

Can I test firmware for the MyBikesGotLED 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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