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2 layers54.1 × 21.9 mmCoralWave, the printed circuit board in 3D

Custom Sub-GHz Transceiver Gateway

Size
54.1 × 21.9 mm
Copper layers
2
Thickness
1.6 mm
Parts
45
Nets
39
Pads
161
Tracks, vias
398, 69
Pours
2
Routed
Yes
KiCad
KiCad 7 (file 20221018)
Created
20 Aug 2023
Updated
22 Aug 2023

Overview

CoralWave is an open-source printed circuit board by mineiwik, from the mineiwik/CoralWave repository on GitHub, published under the MIT licence. It is a 2-layer board of 54.1 × 21.9 mm with 45 parts on 39 nets, routed with 398 tracks and 69 vias.

It is built around the CC1101RGP, ESP32-C3-WROOM-02-N4 and TLV62568DBVR-TP, with the CPDQ5V0-HF, B5819W-TP and NX3225GA-26MHZ-TI among its other parts. Its parts include 22 capacitors, 8 resistors, 5 inductors, 4 diodes and 3 ICs. It belongs with the radio and wireless boards and the ESP32 and RISC-V boards of this library.

Main components

7

README

README.md

CoralWave

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.

Abstract

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. This design allows for bi-directional communication over a designated RF frequency band, making it suitable for various applications such as replacing remote controls.

Note: The design around the CC1101 chip is tuned for the 315/433 MHz ISM/SRD frequency bands. (See the documentation of the CC1101 chip for more information.)

Opening the Design

Follow these steps to open the hardware design using KiCad 7:

  1. Clone this repository to your local machine using the following command:

    text
    git clone https://github.com/mineiwik/CoralWave.git
  2. Launch KiCad 7.

  3. Open the KiCad project by navigating to the project directory and locating the .kicad_pro file. This file stores the project information.

  4. Once the project is open, you can access the schematic and PCB layout files by clicking on the respective buttons in the KiCad project manager.

  5. Adjust the design and/or export the gerbel files for PCB production

Design Files

The repository contains the following design files:

  • Schematic files (.kicad_sch) - These files define the circuit connections and component values.
  • PCB layout files (.kicad_pcb) - These files represent the physical arrangement of components on the PCB.
  • Component libraries (see the PCBLib submodule) - Custom libraries that include footprints and symbols for the ESP32-C3, CC1101, and other components used in the design.

Parts

45
QtyValueFootprintReferences
5220pFPCBLib:Cap_Murata_GRM_0402C5, C6, C11, C12, C13
3100nFPCBLib:Cap_Murata_GRM_0402C1, C10, C16
310kPCBLib:R_Vishay_CRCW_0402R2, R3, R8
310uFPCBLib:Cap_Murata_GRM_0402C17, C20, C21
327nHPCBLib:L_Murata_LQG_0402L1, L3, L4
3CPDQ5V0-HFPCBLib:SODFL1006X40ND1, D2, D3
210nFPCBLib:Cap_Murata_GRM_0402C14, C15
227pFPCBLib:Cap_Murata_GRM_0402C2, C3
23.9pFPCBLib:Cap_Murata_GRM_0402C4, C7
25k1PCBLib:R_Vishay_CRCW_0402R4, R5
11uFPCBLib:Cap_Murata_GRM_0402C18
12.2uHPCBLib:ASPI0418FSL5
122nHPCBLib:L_Murata_LQG_0402L2
14.7uFPCBLib:Cap_Murata_GRM_0603C22
1442kPCBLib:R_Bourns_CR_0603R6
15.6pFPCBLib:Cap_Murata_GRM_0402C9
156kPCBLib:R_KOA_RK_0402R1
16.8pFPCBLib:Cap_Murata_GRM_0402C19
173251-1290PCBLib:Molex-SD-73251-129J1
18.2pFPCBLib:Cap_Murata_GRM_0402C8
197.6kPCBLib:R_Bourns_CR_0603R7
1B5819W-TPPCBLib:SOD3716X135ND4
1CC1101RGPPCBLib:CC1101RGPU1
1ESP32-C3-WROOM-02-N4PCBLib:ESP32C3WROOM02N4IC1
1NX3225GA-26MHZPCBLib:NX3225GA16000MSTDCRG1Y1
1TLV62568DBVRPCBLib:TLV62568DBVRIC2
1USB4105-GF-APCBLib:GCT_USB4105-GF-AJ2

Questions

How big is the CoralWave PCB?

It measures 54.1 × 21.9 mm and has 2 copper layers, 1.6 mm thick.

What parts does the CoralWave use?

45 parts, built around the CC1101RGP, ESP32-C3-WROOM-02-N4, TLV62568DBVR-TP and CPDQ5V0-HF. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the CoralWave KiCad files?

From the mineiwik/CoralWave repository on GitHub, at the commit this page was made from: the board is CoralWave.kicad_pcb and its schematic CoralWave.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the CoralWave design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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