HardLabs

K6 gpo carrier

opmedia-dev·k6_gpo_exhibit·pcb/k6_gpo_carrier.kicad_pcb

K6 gpo carrier PCB layout, top view — open source ESP32 board by opmedia-dev

About the K6 gpo carrier PCB

K6 gpo carrier is an open source ESP32 PCB design by opmedia-dev, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 26 components from 26 distinct parts.

Its main chip is the ESP32_DevKit, from the ESP32 family. Other key parts include the L293D, PC817 and LM2596-5.0. By type, the board carries 9 connectors, 4 ICs, 3 capacitors, 3 resistors, 1 transformer and 1 diode.

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

From the project

KiCad 10 project for a 2-layer carrier board (100 × 100 mm). All modules plug in via through-hole pin headers — no SMD soldering required.

KiCad 10 project for a 2-layer carrier board (100 × 100 mm). All modules plug in via through-hole pin headers — no SMD soldering required.

See PINOUT.md for the complete pinout reference with every pin, net, and signal described.

1. Open the project in KiCad 10+ 2. File → Plot → select Gerber format, output to gerbers/ 3. Check layers: F.Cu, B.Cu, F.SilkS, B.SilkS, F.Mask, B.Mask, Edge.Cuts 4. Generate Drill Files → Excellon format 5. Zip the gerbers/ folder and upload to your fabricator

Main components on the K6 gpo carrier

ESP32_DevKitL293DPC817LM2596-5.0

K6 gpo carrier bill of materials (BOM)

26 components, 26 distinct parts.

QtyPartRefs
1
ESP32_DevKit
U1
1
L293D
U2
1
PC817
U3
1
LM2596-5.0
U4
1
XL6009_Boost
J2
1
12V_IN
J3
1
PHONE
J4
1
MAX98357A
J5
1
DAC_OUT
J6
1
SD_Card
J7
1
BTN_RING
J8
1
BTN_CANCEL
J9
1
BTN_RESET
J10
1
MH
MH1
1
MH
MH2
1
MH
MH3
1
MH
MH4
1
600R_XFMR
T1
1
1N5825
D1
1
33uH
L1
Show 6 more
QtyPartRefs
1
100nF
C1
1
680uF
C2
1
220uF
C3
1
470R
R1
1
220R
R2
1
10K
R3

K6 gpo carrier design files

The KiCad project lives in the opmedia-dev/k6_gpo_exhibit repository on GitHub; these links point at the commit this page was built from.

K6 gpo carrier: common questions

What microcontroller does the K6 gpo carrier use?

The K6 gpo carrier is built around the ESP32_DevKit, from the ESP32 family.

How big is the K6 gpo carrier PCB?

The K6 gpo carrier measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the K6 gpo carrier?

26 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the K6 gpo carrier design files?

From the opmedia-dev/k6_gpo_exhibit repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the K6 gpo carrier design in my own project?

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

Can I test firmware for the K6 gpo carrier 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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