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Estop driver

OUXT-Polaris·estop-driver

Estop driver PCB layout, top view — open source board by OUXT-Polaris

About the Estop driver PCB

Estop driver is an open source PCB design by OUXT-Polaris, published on GitHub under the MIT license. It is a 2-layer board measuring 160 × 160 mm, with 157 components from 32 distinct parts.

Other key parts include the 74HC74, 74HC14, 74HC00, K7805-2000R3 and 74HC02. By type, the board carries 61 resistors, 33 diodes, 30 transistors, 12 capacitors, 11 connectors and 5 ICs.

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

From the project

PCB design files for a board that brings an emergency stop function with mechanical relays to the power supply of an autonomous mobile robot.

Main components on the Estop driver

74HC7474HC1474HC00K7805-2000R374HC02

Estop driver bill of materials (BOM)

157 components, 32 distinct parts.

QtyPartRefs
1
74HC74
U1
1
74HC14
U2
1
74HC00
U3
1
K7805-2000R3
U4
1
74HC02
U5
12
Q_NMOS_GSD
Q1, Q6, Q16, Q17, Q18, Q22, Q23, Q24 +4
5
BC807
Q2, Q3, Q8, Q11, Q14
10
BC817
Q4, Q5, Q7, Q10, Q13, Q19, Q20, Q21 +2
3
Q_NMOS_GSD
Q9, Q12, Q15
1
Conn_01x03
J1
2
Barrel_Jack_Switch
J2, J3
8
Conn_01x02
J4, J5, J6, J7, J8, J9, J10, J11
1
Fuse
F1
3
G7EB
K1, K2, K3
1
R_POT_TRIM
RV1
11
LED
D1, D5, D7, D10, D11, D12, D25, D26 +3
9
D
D2, D6, D8, D9, D22, D23, D24, D30 +1
2
D_Schottky
D3, D4
3
D_Schottky
D13, D15, D17
8
D_TVS
D14, D16, D18, D19, D20, D21, D28, D29
Show 12 more
QtyPartRefs
4
C
C1, C5, C8, C9
2
10u 35V
C2, C3
1
22u 10V
C4
2
1u
C6, C7
3
100u
C10, C11, C12
23
10k
R1, R6, R7, R12, R13, R16, R17, R18 +15
6
R
R2, R3, R8, R9, R23, R24
9
2k
R4, R10, R22, R25, R44, R45, R46, R58 +1
15
47
R5, R20, R26, R28, R30, R38, R39, R40 +7
1
100
R11
2
5.1k
R14, R15
5
1k
R32, R34, R36, R50, R52

Estop driver design files

The KiCad project lives in the OUXT-Polaris/estop-driver repository on GitHub; these links point at the commit this page was built from.

Estop driver: common questions

How big is the Estop driver PCB?

The Estop driver measures 160 × 160 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Estop driver?

157 components, from 32 distinct parts. The full bill of materials is listed on this page.

Where can I download the Estop driver design files?

From the OUXT-Polaris/estop-driver repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Estop driver design in my own project?

Yes, under the terms of its MIT license, which OUXT-Polaris chose for the repository.

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