Modbus RTU mirror side board
About the Modbus RTU mirror side board
Modbus RTU mirror side board is an open source ESP32 PCB design by galopago, published on GitHub under the CC-BY-4.0 license. It is a 2-layer board measuring 52 × 40 mm, with 38 components from 17 distinct parts.
Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the TXS0108EPW, AMS1117-3.3, DS3231MZ and FM24C64C. By type, the board carries 13 resistors, 9 capacitors, 6 diodes, 5 ICs, 3 connectors and 1 battery holder.
From the project
Collection of electronic circuits for DIN RAIL mount
Collection of DIN RAIL mountable circuits!
Read this in other languages: Español ## How to use this repository
The projects were developed in KiCad V5.1
This is an Open Hardware project an is licensed under a Creative Commons Attribution 4.0 International License
Main components on the Modbus RTU mirror side board
Modbus RTU mirror side board bill of materials (BOM)
38 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-WROOM-32 | ESP32-WROOM-32 | U1 |
| 1 | TXS0108EPW | TSSOP-20_4.4x6.5mm_P0.65mm | U2 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U3 |
| 1 | DS3231MZ | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | FM24C64C | SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 2 | Conn_01x04_Male | PinHeader_1x04_P2.54mm_Vertical | J1, J2 |
| 1 | Conn_01x06_Male | PinHeader_1x06_P2.54mm_Vertical | J3 |
| 1 | Battery_Cell | CR2032_Vertical_CircularHoles | BT1 |
| 1 | SW_Push | SW_Tactile_SPST_Angled_PTS645Vx31-2LFS | SW1 |
| 6 | LED | LED_D3.0mm_4.5x9.5mm | D1, D2, D3, D4, D5, D6 |
| 7 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C4, C5, C6, C7, C8, C9 |
| 2 | 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3 |
| 2 | 0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R9 |
| 6 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R4, R5, R6, R7 |
| 2 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R11 |
| 1 | NONE | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10 |
| 2 | 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12, R13 |
Modbus RTU mirror side board design files
The KiCad project lives in the galopago/din-rail-circuits repository on GitHub; these links point at the commit this page was built from.
Modbus RTU mirror side board: common questions
What microcontroller does the Modbus RTU mirror side board use?
The Modbus RTU mirror side board is built around the ESP32-WROOM-32, from the ESP32 family.
How big is the Modbus RTU mirror side board?
The Modbus RTU mirror side board measures 52 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Modbus RTU mirror side board?
38 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Modbus RTU mirror side board design files?
From the galopago/din-rail-circuits repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Modbus RTU mirror side board design in my own project?
Yes, under the terms of its CC-BY-4.0 license, which galopago chose for the repository.
Can I test firmware for the Modbus RTU mirror side board 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.
More boards in din-rail-circuits
Modbus RTU mirror base board
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INRUSH CURRENT LIMITER
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DIN RAIL POE INJECTOR
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DIN RAIL POE INJECTOR SLIM
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POE INJECTOR SLIM
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