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CoralWave

mineiwik·CoralWave

CoralWave PCB layout, top view — open source ESP32 board by mineiwik

About the CoralWave PCB

CoralWave is an open source ESP32 PCB design by mineiwik, published on GitHub under the MIT license. It is a 2-layer board measuring 54.1 × 21.9 mm, with 45 components from 27 distinct parts.

Its main chip is the ESP32-C3-WROOM-02-N4, from the ESP32 family. Other key parts include the TLV62568DBVR and CC1101RGP. By type, the board carries 22 capacitors, 8 resistors, 5 inductors, 4 diodes, 3 ICs and 2 connectors.

It belongs with the rf & radio designs in this gallery.

From the project

Custom Sub-GHz Transceiver Gateway

This repository contains the hardware design files for an RF transceiver system built using an ESP32-C3 module and a CC1101 RF chip. The communication between the ESP32-C3 and CC1101 is established through the Serial Peripheral Interface (SPI) protocol. The design is created using KiCad 7.

The project aims to create a versatile RF communication system by integrating the ESP32-C3 module and the CC1101 RF chip. The ESP32-C3 serves as the main controller, handling data processing and interfacing with external devices, while the CC1101 handles the RF communication with other compatible devices.…

CoralWave, from the project README
From the project README

Main components on the CoralWave

ESP32-C3-WROOM-02-N4TLV62568DBVRCC1101RGP

CoralWave bill of materials (BOM)

45 components, 27 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3-WROOM-02-N4
IC1
1
TLV62568DBVR
IC2
1
CC1101RGP
U1
1
NX3225GA-26.000MHZ-EXS00A-CG01972
NX3225GA-26MHZ
Y1
1
73251-1290
J1
1
USB4105-GF-A
J2
3
CPDQ5V0-HF
D1, D2, D3
1
B5819W-TP
D4
3
27NH
27nH
L1, L3, L4
1
22NH
22nH
L2
1
2.2UH
2.2uH
L5
3
100NF
100nF
C1, C10, C16
2
27PF
27pF
C2, C3
2
3.9PF
3.9pF
C4, C7
5
220PF
220pF
C5, C6, C11, C12, C13
1
8.2PF
8.2pF
C8
1
5.6PF
5.6pF
C9
2
10NF
10nF
C14, C15
3
10UF
10uF
C17, C20, C21
1
1UF
1uF
C18
Show 7 more
QtyPartRefs
1
6.8PF
6.8pF
C19
1
4.7UF
4.7uF
C22
1
56K
56k
R1
3
10K
10k
R2, R3, R8
2
5K1
5k1
R4, R5
1
442K
442k
R6
1
97.6K
97.6k
R7

CoralWave design files

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

CoralWave: common questions

What microcontroller does the CoralWave use?

The CoralWave is built around the ESP32-C3-WROOM-02-N4, from the ESP32 family.

How big is the CoralWave PCB?

The CoralWave measures 54.1 × 21.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CoralWave?

45 components, from 27 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 CoralWave design files?

From the mineiwik/CoralWave 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 CoralWave design in my own project?

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

Can I test firmware for the CoralWave 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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