HardLabs

STW2915

schlae·VapeRE·STW2915/STW2915.kicad_pcb

STW2915 PCB layout, top view — open source board by schlae

About the STW2915 PCB

STW2915 is an open source PCB design by schlae, published on GitHub. It is a 2-layer board measuring 79.3 × 20.7 mm, with 44 components from 27 distinct parts.

Other key parts include the PY32F030K2, LP4068, PD64SH4BDPL2 and CJ6330A33M. By type, the board carries 23 resistors, 7 capacitors, 6 transistors, 4 ICs, 2 connectors and 1 fuse.

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

From the project

Reverse engineered disposable v a p e boards

Disposable vapes show up all the time in e-waste and are often found as litter at the side of the road (shame!) but they contain some useful components that can be reused by the cost-conscious hacker.

Note: Wear gloves when handling used devices and don't allow the vape liquid to contact your skin or eyes.

I've reverse engineered a number of different brands and placed the schematics and layout files in this repository. The summary table below is a good starting point.

Main components on the STW2915

PY32F030K2LP4068PD64SH4BDPL2CJ6330A33M

STW2915 bill of materials (BOM)

44 components, 27 distinct parts.

QtyPartRefs
1
PY32F030K2
U1
1
LP4068
U2
1
PD64SH4BDPL2
U3
1
CJ6330A33M
U4
2
SP1216
Q1, Q2
2
Q_NMOS_GSD
Q3, Q4
2
Q_PMOS_GSD
Q5, Q6
1
USB_C_Receptacle_PowerOnly_6P
J1
1
LCD
J2
1
?
F1
1
Xunpu TS-1077S-01526
SW_Push
SW2
1
10nF
C1
2
1uF
C2, C7
3
10uF
C3, C5, C6
1
0.1uF
C4
2
330
R1, R2
4
20K
R3, R4, R5, R6
6
10K
R7, R8, R9, R10, R17, R19
2
5.1K
R11, R12
2
22
R13, R14
Show 7 more
QtyPartRefs
1
3.40K
R15
1
1K
R16
1
4.7
R18
1
2
R20
1
464K
R21
1
300K
R22
1
200K
R23

STW2915 design files

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

STW2915: common questions

How big is the STW2915 PCB?

The STW2915 measures 79.3 × 20.7 mm, has 2 copper layers and is 1 mm thick.

How many components are on the STW2915?

44 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the STW2915 design files?

From the schlae/VapeRE repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the STW2915 design in my own project?

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

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