HardLabs

Hub board diy

felixfelix-bot·balloon-fresh·tracker/hardware/hub_board_diy/hub_board_diy.kicad_pcb

Hub board diy layout, top view — open source ESP32 board by felixfelix-bot

About the Hub board diy

Hub board diy is an open source ESP32 PCB design by felixfelix-bot, published on GitHub. It is a 2-layer board measuring 45 × 38 mm, with 5 components from 5 distinct parts.

Its main chip is the ESP32-C3_Mini_V1, from the ESP32 family. Other key parts include the LoRa2021F33_Left, LoRa2021F33_Right and BMP280. By type, the board carries 4 ICs and 1 capacitor.

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

From the project

ESP32-C3 + NiceRF LoRa2021 (Semtech LR2021 Gen 4) pico balloon tracker + mesh transport

Ultraleichter (<15g) Pico-Balloon-Tracker basierend auf ESP32-C3 und Semtech LR2021 (LoRa Gen 4).

- Multi-Band LoRa: 2.4 GHz ISM (weltweit lizenzfrei) + Sub-GHz (868/915 MHz) - FLRC High-Speed: Bis 2.6 Mbps fuer kurze Distanzen - 3D Antennen-Array: 4 PCB-Yagi Antennen in verschiedenen Raumrichtungen - Adaptive Moduswahl: Automatischer Wechsel zwischen FLRC/LoRa/Sub-GHz - Solar + Supercap Stromversorgung: Keine Batterie noetig - SKY66112 FEM: +22 dBm TX, +14 dB LNA RX - BMP280 Sensor: Druck, Hoehe, Temperatur - Dual-Track Hardware: Dev-Board (XIAO) + Flight-Board (Bare-Chip)

Main components on the Hub board diy

ESP32-C3_Mini_V1LoRa2021F33_LeftLoRa2021F33_RightBMP280

Hub board diy bill of materials (BOM)

5 components, 5 distinct parts.

QtyPartRefs
1
ESP32-C3_Mini_V1
U1
1
LoRa2021F33_Left
U2L
1
LoRa2021F33_Right
U2R
1
BMP280
U3
1
—
C1

Hub board diy design files

The KiCad project lives in the felixfelix-bot/balloon-fresh repository on GitHub; these links point at the commit this page was built from.

Hub board diy: common questions

What microcontroller does the Hub board diy use?

The Hub board diy is built around the ESP32-C3_Mini_V1, from the ESP32 family.

How big is the Hub board diy?

The Hub board diy measures 45 × 38 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hub board diy?

5 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the Hub board diy design files?

From the felixfelix-bot/balloon-fresh repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Hub board diy design in my own project?

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

Can I test firmware for the Hub board diy 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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