HardLabs

ENHP

sebmorales·ENHP·NetworkedHardware_PCB_design/ENHP_eleklekha.kicad_pcb

ENHP PCB layout, top view — open source ESP32 board by sebmorales

About the ENHP PCB

ENHP is an open source ESP32 PCB design by sebmorales, published on GitHub. It is a 2-layer board measuring 76.3 × 105.1 mm, with 44 components from 33 distinct parts.

Its main chip is the ESP32-DEVKITC, from the ESP32 family. Other key parts include the MIC5225-3.3YM5, LSM303C and CP2102N-AXX-XQFN28. By type, the board carries 15 resistors, 8 connectors, 7 capacitors, 4 ICs, 3 transistors and 3 diodes.

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

From the project

Experiments in Networked Hardware Performance

Woo! You got your board on the mail, or maybe we gave it to you in person, now, what is it? What is it for?

This board is based on a ESP32 microcontroller, but it also has some other components to help us get started connecting the digital world and our tangible one. We will go more in depth during class, but for now, here is a quick manual to get you going.

By default, the board is already pre-programmed, so you don’t have to worry about that. But if you want to make changes, you are more than welcome to do so. We will soon update this same doc to share the code and schematics.

ENHP, from the project README
From the project README

Main components on the ENHP

ESP32-DEVKITCMIC5225-3.3YM5LSM303CCP2102N-AXX-XQFN28

ENHP bill of materials (BOM)

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

QtyPartRefs
1
ESP32-DEVKITC
ESP32-DevKitC
U1
1
MIC5225-3.3YM5
U2
1
LSM303C
U3
1
CP2102N-AXX-XQFN28
CP2102N-Axx-xQFN28
U4
1
MMBT3904
Q1
2
BC817
Q2, Q3
1
hookup
J1
1
SERVO
J2
1
TXRX
J3
1
OUT0
J4
1
I2C
J5
1
C475135
J6
1
GND
J7
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J8
1
FINDER-36.11
K1
1
Potentiometer
RV5K1
1
SW_DIP_X01
SW_DIP_x01
SW1
1
SW_DIP_X01
SW_DIP_x01
SW2
2
LED
D1, D2
1
1N4148W
D3
Show 13 more
QtyPartRefs
2
10UF
10uF
C1, C4
1
220NF
220nF
C2
1
0.1UF
0.1uF
C3
1
1UF
1uF
C5
2
100NF
100nF
C6, C7
1
R220
R1
1
Photoresistor
R2
6
10K
R3, R7, R10, R11, R14, R15
1
1M
R4
1
220
R5
1
1K
R6
2
5.1K
R8, R9
2
2.7K
R12, R13

ENHP design files

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

ENHP: common questions

What microcontroller does the ENHP use?

The ENHP is built around the ESP32-DEVKITC, from the ESP32 family.

How big is the ENHP PCB?

The ENHP measures 76.3 × 105.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ENHP?

44 components, from 33 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 ENHP design files?

From the sebmorales/ENHP 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 ENHP design in my own project?

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

Can I test firmware for the ENHP 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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