2 layers100.8 × 30.2 mm Esp32 loraprs c3, the printed circuit board in 3D

Esp32 loraprs c3

LoRa ESP32 KISS Bluetooth modem (for APRSDroid or aprs.fi iOS) + APRS-IS RX/TX iGate over WiFi + Digipeater + DV (with Codec2 Walkie-Talkie)

Full screen GitHub .kicad_pcb

Size: 100.8 × 30.2 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 29
Nets: 38
Pads: 129
Tracks, vias: 220, 76
Pours: 2
Routed: Yes
KiCad: KiCad 6 (file 20211014)
Created: 25 Apr 2019
Updated: 1 Apr 2026

Overview

Esp32 loraprs c3 is an open-source printed circuit board by sh123, from the sh123/esp32_loraprs repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 100.8 × 30.2 mm with 29 parts on 38 nets, routed with 220 tracks and 76 vias.

It is built around the E22-400M30S and IP5306. Its parts include 10 capacitors, 5 resistors, 4 diodes, 3 ICs and 2 connectors. It belongs with the radio and wireless and home automation and IoT boards and the ESP32 and RISC-V boards of this library.

Main components

README

extras/schematics/esp32c3/README.md

ESP32-C3-MINI LoRa modem devboard

This is power bank style LoRA APRS modem based on ESP32-C3-DEV board with built in charge/boost IP5306 controller and battery holder on the back side.

Board

Category and platform

Radio and wireless Home automation and IoT ESP32 RISC-V

Topics

esp32 lora aprs-tracker aprs aprsis lora-gateway esp32-ardunio lorawan esp32-library iot amateur-radio ham-radio tracker uhf aprs-rx lora-server kiss tnc aprsdroid codec2

Project files

Show this board on your page

https://pcbkit.io/boards/sh123/esp32_loraprs

The board's own page, for a message or a post.

Source

Repository: sh123/esp32_loraprs
Board file: extras/schematics/esp32c3/esp32_loraprs_c3.kicad_pcb
Commit: 0207ddf
Homepage: github.com/sh123/esp32_loraprs
Licence: GPL-3.0

Parts

Qty	Value	Footprint	References
6	22u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C3, C5, C6, C7, C8, C9
4	LED	LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder	D1, D2, D3, D4
2	100p	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C1, C2
2	10u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C4, C10
2	R	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1, R2
1	0.5	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R5
1	10k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R4
1	1u	Inductor_SMD:L_6.3x6.3_H3	L1
1	2	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R6
1	Battery_Cell	esp32_loraprs_c3:BatteryHolder_1x18650	BT1
1	Conn_Coaxial	Connector_Coaxial:SMA_Samtec_SMA-J-P-X-ST-EM1_EdgeMount	J1
1	E22-400M30S	esp32_loraprs_c3:E22-400M30S	U2
1	ESP32_C3_SuperMini	esp32_loraprs_c3:esp32 c3 SuperMini	U1
1	IP5306	Package_SO:HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.3x2.3mm	U3
1	SW_DIP_x01	Button_Switch_SMD:SW_SPST_REED_CT05-XXXX-J1	SW2
1	SW_Push	Button_Switch_SMD:Panasonic_EVQPUJ_EVQPUA	SW1
1	SolderJumper_3_Open	Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels	JP1
1	USB_C_Receptacle_USB2.0	Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV	J2

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Questions

How big is the Esp32 loraprs c3 PCB?

It measures 100.8 × 30.2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Esp32 loraprs c3 use?

29 parts, built around the E22-400M30S and IP5306. 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 Esp32 loraprs c3 KiCad files?

From the sh123/esp32_loraprs repository on GitHub, at the commit this page was made from: the board is extras/schematics/esp32c3/esp32_loraprs_c3.kicad_pcb and its schematic extras/schematics/esp32c3/esp32_loraprs_c3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Esp32 loraprs c3 design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).