2 layers67 × 28 mm
Modbus
27 boardsKiCad boards from 16 GitHub repositories tagged “modbus”, the most starred first; open any of them in PCBKit.
- 2 layers160 × 100 mm
- 2 layers127.3 × 54.1 mm
ESP32 SolarBox
cole8888/SRNE-Solar-Charge-Controller-Monitor
Read data from SRNE solar charge controllers.
34 parts42 - 2 layers163 × 72 mm
OM-64DO
OpenModbus/OM-64DO
A compact industrial-grade 64-channel Modbus RTU output module.
231 parts21GPL-3.0 - 2 layers33.3 × 6.3 mm
Stm8s001rs485
TG9541/stm8s001rs485
A narrow KiCad made PCB with STM8S001J3, RS485 driver and DS1621S Thermometer, e.g., for STM8EF-MODBUS
21 parts20MIT - 2 layers16.9 × 14.4 mm
Rs485-ch340e
TG9541/rs485-ch340e
A small CH340E based configurable RS485 or TTL 2/3-wire USB dongle
17 parts15MIT - 2 layers81.2 × 71.6 mm
EveningStar
ciaassured/eveningstar-hardware
Hardware design for the Eveningstar ESP32-based Morningstar MeterBus interface.
153 parts4AGPL-3.0 - 2 layers52.9 × 30.6 mm
Power meter v3 1
KrystianD/avr-power-meter
AVR-based, galvanically isolated, bidirectional DC energy meter with Modbus RTU interface.
50 parts4MIT - 2 layers100 × 72 mm
OM-16LED
OpenModbus/OM-16LED
A compact industrial-grade 16-channel Modbus RTU LED driver.
100 parts3GPL-3.0 - 2 layers68.6 × 53.3 mm
ModbusRTU Test Shield
CMB27/ModbusRTU-Test-Shield
A shield for Arduino boards that provides an RS-485 transceiver, RS-232 transceiver, and a selection of buttons, lights, and knobs.
46 parts1CERN-OHL-P-2.0 - 2 layers55 × 73.5 mm
Pcb dezentral
petermaerki/puenterswis_heizung_2023_git
Puenterswis Heizungsersatz, Steuerung Anlage mit Oekofen Kaskade Pellematic Maxi PESK
98 parts1 - 2 layers34.5 × 26.4 mm
- 2 layers73.3 × 73.3 mm
- 4 layers100 × 80 mm
BluePill SmartNode RS485
SimulatedFlow/kicad-board-2026-07-16-bluepill-smartnode-rs485
STM32 Bluepill SmartNode - RS485 bus node carrier with 2 relays for Modbus / field bus setups. Hand-solderable THT, bare PCB. KiCad source files.
32 parts - 4 layers100 × 80 mm
BluePillComNode
SimulatedFlow/kicad-board-2026-07-27-bluepillcomnode
STM32 Bluepill ComNode - industrial comms carrier with RS485, CAN bus and 0-10V analog interface. Hand-solderable THT, bare PCB. KiCad source files.
26 parts - 4 layers83.3 × 88.1 mm
Bottom PCB
StanZalewski/Autonomous-remote-monitoring-system-based-on-the-LoRaWAN-protocol
Solar-powered LoRaWAN weather station — 3 custom PCBs, bare-metal STM32, 4.3 km verified link
124 parts - 2 layers67 × 21.3 mm
- 2 layers67 × 25 mm
- 2 layers62.8 × 23.2 mm
- 4 layers67 × 31.3 mm
- 2 layers34 × 67 mm
- 2 layers66 × 73.1 mm
- 2 layers67 × 74.7 mm
- 2 layers34 × 16 mm
