HardLabs

Poachstopper

TheCodedKid·poachstopper

Poachstopper PCB layout, top view — open source board by TheCodedKid

About the Poachstopper PCB

Poachstopper is an open source PCB design by TheCodedKid, published on GitHub under the MIT license. It is a 2-layer board measuring 49 × 41 mm, with 19 components from 17 distinct parts.

Other key parts include the NE555DR-MS and LMR16006XDDCT. By type, the board carries 6 resistors, 4 capacitors, 2 ICs, 2 connectors, 2 diodes and 1 fuse.

It belongs with the power & battery designs in this gallery.

From the project

Relay Protection Circuit for MIT Mini Cheetah Motor

Inline soft-start for Mini Cheetah motor controllers. Stops the power-on inrush surge that kills the input caps.

Cheap MIT Mini Cheetah clones have undersized input caps and no inrush limiting. Hot-plugging a charged battery, current spike into the FETs, caps die. No good, dead cheetah.

Poach Stopper splices inline on the battery lead, pre-charges through a resistor, then hands over full current. No MCU, no firmware, no buttons.

Poachstopper, from the project README
From the project README

Main components on the Poachstopper

NE555DR-MSLMR16006XDDCT

Poachstopper bill of materials (BOM)

19 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
NE555DR-MS
MSKSEMI(美森科)
U2
1
LMR16006XDDCT
U3
2
XT60PW-M
J1, J2
1
Blade Fuse
F1
1
G2RL-1A-E DC5
RLA1
1
60V/1A
D2
1
1N4007
1N4007_C727081
TWGMC(迪嘉)
D3
1
22UH
22uH
L1
1
220NF
220nF
C1
1
100nF
C2
2
10uF
C3, C4
1
1M
R1
1
10
R2
1
SMW510RJT
TE Connectivity(泰科电子)
R3
1
56.2K
56.2k
R7
1
10K
10k
R8
1
100K
100k
R9

Poachstopper design files

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

Poachstopper: common questions

How big is the Poachstopper PCB?

The Poachstopper measures 49 × 41 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Poachstopper?

19 components, from 17 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 Poachstopper design files?

From the TheCodedKid/poachstopper 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 Poachstopper design in my own project?

Yes, under the terms of its MIT license, which TheCodedKid chose for the repository.

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