HardLabs

Node RS232

maivananh111·DoAnTotNghiep·Node_RS232/Node_RS232.kicad_pcb

Node RS232 PCB layout, top view — open source ESP32 board by maivananh111

About the Node RS232 PCB

Node RS232 is an open source ESP32 PCB design by maivananh111, published on GitHub. It is a 2-layer board measuring 83.7 × 53.7 mm, with 107 components from 57 distinct parts.

Its main chip is the ESP32-C3, from the ESP32 family. Other key parts include the RAK3172, MAX232, BQ24075RGT, XL1509-5.0 and TPS63000. By type, the board carries 36 capacitors, 36 resistors, 8 ICs, 7 transistors, 5 connectors and 4 switches.

It belongs with the iot & wireless and sensors designs in this gallery.

From the project

LoRaWAN wireless sensor network

Main components on the Node RS232

RAK3172MAX232BQ24075RGTXL1509-5.0TPS63000MT3608ESP32-C3USBLC6-2SC6

Node RS232 bill of materials (BOM)

107 components, 57 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RAK3172
U1
1
MAX232
MAX3232
U2
1
BQ24075RGT
U3
1
XL1509-5.0
U4
1
TPS63000
U5
1
MT3608
U6
1
ESP32-C3
U9
1
USBLC6-2SC6
U10
2
SI2300
Q1, Q3
2
SI2301
Q2, Q4
1
APM4015P
Q5
1
SI2300
Q6
1
SI2301
Q7
1
40MHZ
40MHz
Y1
1
RAK_DEBUG
J1
1
CONN_PWRIN
J3
1
CONN_ESP_PROG
J4
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J5
1
CONN_RS232
J6
1
2.4GHZ
2.4GHz
AE1
Show 37 more
QtyPartRefs
1
BATTERY_18650
Battery_18650
BT1
1
RAK-RESET
SW1
1
ESP-RESET
SW2
1
ESP-BOOT
SW3
1
USER_BTN
SW4
2
SS34
D1, D5
1
Z12V
D2
1
LED_Dual_AKAK
D3
1
68UH
68uH
L1
1
2.2UH
2.2uH
L2
1
22UH
22uH
L3
1
2.2NH
2.2nH
L4
10
100NF
100nF
C1, C3, C11, C20, C21, C22, C23, C28 +2
13
1UF
1uF
C2, C4, C5, C8, C9, C15, C16, C30 +5
1
470UF/50V
470uF/50V
C6
1
100UF
100uF
C7
6
10UF
10uF
C10, C12, C13, C14, C17, C18
1
100NF
1uF
C19
2
DNP
C24, C25
2
10PF
10pF
C26, C27
5
10R
R1, R4, R5, R30, R32
2
10K
100K
R2, R33
7
10K
20K
R3, R7, R25, R26, R27, R31, R34
3
1K
R6, R8, R12
2
0R
R9, R10
2
10R
R11, R35
1
10K
R13
2
1K2
R14, R15
1
100R
R16
2
560K
R17, R19
2
100K
R18, R20
1
20K
33K
R21
1
2K7
R22
1
100R
100K
R23
1
20K
R24
2
5K1
R28, R29
1
4K7
R36

Node RS232 design files

The KiCad project lives in the maivananh111/DoAnTotNghiep repository on GitHub; these links point at the commit this page was built from.

Node RS232: common questions

What microcontroller does the Node RS232 use?

The Node RS232 is built around the ESP32-C3, from the ESP32 family.

How big is the Node RS232 PCB?

The Node RS232 measures 83.7 × 53.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Node RS232?

107 components, from 57 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Node RS232 design files?

From the maivananh111/DoAnTotNghiep repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Node RS232 design in my own project?

The repository has no license, so all rights stay with maivananh111. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Node RS232 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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