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2 layers35 × 40 mmEsp232, the printed circuit board in 3D

ESP32 + RS232 = 💰

Size
35 × 40 mm
Copper layers
2
Thickness
1.6 mm
Parts
18
Nets
31
Pads
72
Tracks, vias
105, 17
Pours
1
Routed
Yes
KiCad
KiCad 7 (file 20221018)
Created
25 Nov 2023
Updated
13 Mar 2024

Overview

Esp232 is an open-source printed circuit board by notthetup, from the notthetup/esp232 repository on GitHub. It is a 2-layer board of 35 × 40 mm with 18 parts on 31 nets, routed with 105 tracks and 17 vias.

It is built around the MAX3232ID. Its parts include 5 capacitors, 3 connectors, 2 resistors, 2 ICs and 2 diodes. It belongs with the ESP32 and RISC-V boards of this library.

Main components

1

README

README.md

esp232

ESP32 + RS232 = 💰

This project is a simple PCB that allows you to connect an ESP32 to a RS232 port. The initial version is based on a Seeduino ESP32 Xiao board for simplicity.

Features

  • RS232 port with RTS/CTS flow control
  • USB port for power and programming
  • Seperate optional 5V power input
  • Commonly available IDC connectors for connecting to RS232.

Parts

18
QtyValueFootprintReferences
50.1uFCapacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolderC1, C2, C3, C4, C5
4MountingHoleMountingHole:MountingHole_2.5mmH1, H2, H3, H4
21kResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR1, R2
2LEDLED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolderD1, D2
1External-PWRConnector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_VerticalJ2
1MAX3232Package_SO:SOIC-16_3.9x9.9mm_P1.27mmU2
1MOUDLE-SEEEDUINO-XIAO-ESP32C3xiao ESP32C3_PCB:MOUDLE14P-SMD-2.54-21X17.8MMU1
1RS232-ConnectorConnector_IDC:IDC-Header_2x05_P2.54mm_VerticalJ1
1Spare IOConnector_PinHeader_1.27mm:PinHeader_2x04_P1.27mm_Vertical_SMDJ3

Questions

How big is the Esp232 PCB?

It measures 35 × 40 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Esp232 use?

18 parts, built around the MAX3232ID. 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 Esp232 KiCad files?

From the notthetup/esp232 repository on GitHub, at the commit this page was made from: the board is esp232.kicad_pcb and its schematic esp232.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Esp232 design in my own project?

Its repository states no licence, so its author keeps all rights: ask notthetup before reusing the design.

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