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BMS

Wierdwizard2587·ElectricGuitarMK1·Research and Development/BMS/PCB Design/1.0 BMS/BMS.kicad_pcb

BMS PCB layout, top view — open source board by Wierdwizard2587
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About the BMS PCB

BMS is an open source PCB design by Wierdwizard2587, published on GitHub. It is a 2-layer board measuring 179 × 44 mm, with 64 components from 32 distinct parts.

Other key parts include the 78L05, MP1584 Module, TP4056 Charging Module, LM339 and 74HC02. By type, the board carries 19 resistors, 15 ICs, 13 connectors, 10 transistors, 2 capacitors and 1 diode.

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

From the project

This is the repository for the Research and Development, Production, and assembly of the Electric Guitar MK1.

- DIY portable electric guitar with integrated digital effects and modular power/audio system - Final version features Teensy 4.0, onboard FX, rotary encoder UI, OLED display, amp/speaker output, battery or DC power, and RGB lighting - Entire build: woodwork, PCBs, 3D prints, firmware, and more - Early prototype (Mk0) failed due to poor electrical design and overcomplex hardware, rebuilt from scratch over 12+ months with newly acquired engineering and fabrication skills

BMS, from the project README
From the project README

Main components on the BMS

78L05MP1584 ModuleTP4056 Charging ModuleLM33974HC02LM393LMC555xN

BMS bill of materials (BOM)

64 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
78L05
U2
1
MP1584 Module
U4
8
TP4056 Charging Module
U5, U6, U7, U8, U9, U10, U11, U12
2
LM339
U14, U15
1
74HC02
U16
1
LM393
U17
1
LMC555xN
U18
4
IRL540
Q1, Q12, Q14, Q15
5
PN2222A
Q10, Q11, Q13, Q17, Q18
1
ZVP2106A
Q16
3
Conn_01x04_Pin
J1, J14, J16
1
Batt 1 Conn
J3
1
Batt 2 Conn
J5
1
Batt 3 Conn
J6
1
Batt 4 Conn
J7
1
Batt 5 Conn
J9
1
Batt 6 Conn
J10
1
Batt 7 Conn
J11
1
Batt 8 Conn
J12
1
Conn_01x06_Pin
J13
Show 12 more
QtyPartRefs
1
Moment ON B
J17
4
Thermistor_NTC
TH1, TH2, TH3, TH4
1
LED_KGRB
D2
1
2nf
C2
1
220uf
C3
8
10K
R1, R2, R3, R4, R5, R7, R11, R16
6
R
R6, R8, R12, R13, R14, R15
1
30K
R9
1
7.5K
R10
1
150R
R17
1
90R
R18
1
100R
R19

BMS design files

The KiCad project lives in the Wierdwizard2587/ElectricGuitarMK1 repository on GitHub; these links point at the commit this page was built from.

BMS: common questions

How big is the BMS PCB?

The BMS measures 179 × 44 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BMS?

64 components, from 32 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 BMS design files?

From the Wierdwizard2587/ElectricGuitarMK1 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 BMS design in my own project?

The repository has no license, so all rights stay with Wierdwizard2587. Use it as a reference, and ask the author before reusing the design.

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