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Gate controller

weswitt·gate-controller·kicad/gate-controller.kicad_pcb

Gate controller PCB layout, top view — open source ESP32 board by weswitt
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About the Gate controller PCB

Gate controller is an open source ESP32 PCB design by weswitt, published on GitHub. It is a 2-layer board measuring 108 × 83 mm, with 33 components from 20 distinct parts.

Its main chip is the ESP32-DEVKITC-32U, from the ESP32 family. Other key parts include the R-78E3.3-1.0, FOD852 and R-78E5.0-1.0. By type, the board carries 8 resistors, 7 connectors, 6 ICs, 4 capacitors, 3 relays and 3 diodes.

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

From the project

Liftmaster gate controller board

This project is a PCB design for controlling a Liftmaster gate operator from Home Assistant.

The PCB design was done in KiCad 8.0, which is an open source electronic design tool. This project includes all of the KiCad project files so that you can modify the PCB if needed. I've also included a GERBER.ZIP file that can be used to simply have the PCB printed by someplace like JLPCB.

Main components on the Gate controller

R-78E3.3-1.0FOD852ESP32-DEVKITC-32UR-78E5.0-1.0

Gate controller bill of materials (BOM)

33 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
R-78E3.3-1.0
U2
3
FOD852
U3, U4, U5
1
ESP32-DEVKITC-32U
U6
1
R-78E5.0-1.0
U7
2
2N2222
Q1, Q2
1
Power Input
J1
3
Screw_Terminal_01x02
J2, J3, J6
1
Gate Closed Switch
J4
1
Gate Open Switch
J5
1
Serial Port
J9
1
Gate Open Relay
K1
1
Gate Close Relay
K2
1
Exit Relay
K3
1
LTL2R3KEK (RED)
D1
1
LTL2P3KGKNN (GREEN)
D2
1
LTL2R3KSK (YELLOW)
D3
4
10uf
C1, C2, C3, C4
3
162
R1, R2, R3
2
10k
R4, R5
3
41
R6, R7, R8

Gate controller design files

The KiCad project lives in the weswitt/gate-controller repository on GitHub; these links point at the commit this page was built from.

Gate controller: common questions

What microcontroller does the Gate controller use?

The Gate controller is built around the ESP32-DEVKITC-32U, from the ESP32 family.

How big is the Gate controller PCB?

The Gate controller measures 108 × 83 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Gate controller?

33 components, from 20 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 Gate controller design files?

From the weswitt/gate-controller 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 Gate controller design in my own project?

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

Can I test firmware for the Gate controller 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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