Village Node PCB Design

Task unable_to_complete.

13:17

42 days

saved system architecture and shared diagram

0:28

Accessing knowledge base.

Started: documenting architecture for ESP32 LoRa board

42 days

Updated 1 document property

Set System Architecture to "```mermaid flowchart TD PWR["5V Input Terminal"] --> ESP["ESP32 DevKit Headers"] ESP --> LORA["LoRa Module Header"] ..."

42 days

added main schematic components and passives

2:03

Analyzing the schematic.

Searching library for: "ESP32 DevKit carrier-board header or development board style part suitable for plugging an ESP32 DevKit module into female headers on a custom PCB. Need accessible GPIO pins including GPIO2 GPIO5 GPIO12 GPIO13 GPIO14 GPIO18 GPIO19 GPIO23 GPIO25 GPIO26 GPIO27 GPIO32 GPIO33 plus VIN 5V and 3.3V and GND. Prefer through-hole headers or devkit footprint representation for a carrier PCB."

Creating search plan for: "ESP32 DevKit carrier-board header or development board style part suitable for plugging an ESP32 DevKit module into female headers on a custom PCB. Need accessible GPIO pins including GPIO2 GPIO5 GPIO12 GPIO13 GPIO14 GPIO18 GPIO19 GPIO23 GPIO25 GPIO26 GPIO27 GPIO32 GPIO33 plus VIN 5V and 3.3V and GND. Prefer through-hole headers or devkit footprint representation for a carrier PCB. --- MANDATORY search constraints (these MUST be applied to all searches): fieldCategories: ["core","type","manufacturer","specifications","packaging"] hitsPerPage: 10"

Started: sourcing ESP32 DevKit and LoRa headers

Searching: "LoRa module header or breakout footprint exposing SPI pins (NSS/CS, RST, DIO0, SCK, MISO, MOSI, VCC, GND) suitable for SX1276/Ra-02 style modules; preference for right-angle or edge-mount antenna placement and pluggable 8-pin 2.54mm or similar header"

Searching: "ESP32 DevKit carrier-board header or development board style part suitable for plugging an ESP32 DevKit module into female headers on a custom PCB. Need accessible GPIO pins including GPIO2 GPIO5 GPIO12 GPIO13 GPIO14 GPIO18 GPIO19 GPIO23 GPIO25 GPIO26 GPIO27 GPIO32 GPIO33 plus VIN 5V and 3.3V and GND. Prefer through-hole headers or devkit footprint representation for a carrier PCB. --- MANDATORY search constraints (these MUST be applied to all searches): fieldCategories: ["core","type","manufacturer","specifications","packaging"] hitsPerPage: 10"

Searching: "LoRa module header or footprint compatible with SPI connections and antenna edge placement for a carrier PCB. Need pins for NSS or CS RST DIO0 SCK MISO MOSI VCC and GND, suitable as a pluggable module or header footprint for common SX1276 or Ra-02 style LoRa modules. --- MANDATORY search constraints (these MUST be applied to all searches): fieldCategories: ["core","type","manufacturer","specifications","packaging"] hitsPerPage: 10"

Finished searching for components.

42 days

Added 16 components

0:02

Added 1x ESP32-DEVKITC-32UE as U1 (Pins: CMD, D1, GPIO12, GPIO27, GPIO34, EN, GPIO19, GPIO21, GND::20, GND::26, TX, VN, GPIO32, GPIO16, GPIO15 ... and 23 more)

Added 1x RA-02 as U2 (Pins: DI02, DI01, SCK, MISO, DI04, GND::9, GND::2, DI03, NSS, GND::1, DI05, DI00, GND::16, RESET, 3.3V ... and 1 more)

Added 7x Push Button as SW1, SW2, SW3, SW4, SW5, SW6, SW7 (Pins: P2, P1)

Added 1x TerminalBlock-01x02P-5.00mm as J1 (Pins: P2, P1)

Added 2x Pin Header 01x04 2.54mm Vertical as J2, J3 (Pins: Pin_4, Pin_3, Pin_2, Pin_1)

Added 1x Connector 01x02 Horizontal as J4 (Pins: Pin_1, Pin_2)

Added 3x Generic Capacitor as C1, C2, C3 (Pins: P1, P2)

42 days

flux

0:13

I chose the U1 as the controller module and the U2 as the LoRa module. The seven button inputs are SW1 through SW7, with the plan to use ESP32 internal pull-ups. The power entry is J1, LoRa decoupling is C2 and C3, and the 5 V bulk capacitor is C1.

42 days

Task unable_to_complete.

10:28

Analyzing the schematic.

42 days

Updated 21 connections

0:10

Connected J1:P1, U1:5V, C1:P1 to ^VIN_5V

Connected J1:P2, U1:GND, U1:GND, U1:GND, U2:GND, U2:GND, U2:GND, U2:GND, SW1:P2, SW2:P2, SW3:P2, SW4:P2, SW5:P2, SW6:P2, SW7:P2, C1:P2, C2:P2, C3:P2, J2:Pin_2, J3:Pin_1, J4:Pin_2 to ^GND

Connected U1:3V3, U2:3.3V, C2:P1, C3:P1, J2:Pin_1, J3:Pin_2 to ^3V3

Connected U1:GPIO5, U2:NSS to ^LORA_CS

Connected U1:GPIO14, U2:RESET to ^LORA_RST

Connected U1:GPIO2, U2:DI00 to ^LORA_DIO0

Connected U1:GPIO18, U2:SCK to ^SPI_SCK

Connected U1:GPIO19, U2:MISO to ^SPI_MISO

Connected U1:GPIO23, U2:MOSI to ^SPI_MOSI

Connected U1:GPIO13, SW1:P1 to ^BTN_FEVER

Connected U1:GPIO32, SW2:P1 to ^BTN_BODY

Connected U1:GPIO33, SW3:P1 to ^BTN_COUGH

Connected U1:GPIO25, SW4:P1 to ^BTN_LEFT

Connected U1:GPIO27, SW5:P1 to ^BTN_RIGHT

Connected U1:GPIO26, SW6:P1 to ^BTN_APPOINTMENT

Connected U1:GPIO12, SW7:P1 to ^BTN_EMERGENCY

Connected U1:TX, J2:Pin_3 to ^DBG_TX

Connected U1:RX, J2:Pin_4 to ^DBG_RX

Connected U1:GPIO21, J3:Pin_3 to ^AUX_GPIO21

Connected U1:GPIO22, J3:Pin_4 to ^AUX_GPIO22

Connected U1:GPIO17, J4:Pin_1 to ^BUZZER_GPIO

nets {

net VIN_5V = J1:P1, C1:P1, U1:5V;

net GND = J1:P2, GND:GND, U2 GND - U2 GND:GND, J4:Pin_2, J3:Pin_1, J2:Pin_2, C3:P2, C2:P2, C1:P2, SW7:P2, SW6:P2, SW5:P2, SW4:P2, SW3:P2, SW2:P2, SW1:P2, U2:16, U2:9, U2:2, U1 GND - U2 GND:GND, U2:1, U1:14, U1:26, U1:20;

net 3V3 = U1:3V3, J3:Pin_2, J2:Pin_1, C3:P1, C2:P1, U2:3.3V;

net LORA_CS = U1:GPIO5, U2:NSS;

net LORA_RST = U1:GPIO14, U2:RESET;

net LORA_DIO0 = U1:GPIO2, U2:DI00;

net SPI_SCK = U1:GPIO18, U2:SCK;

net SPI_MISO = U1:GPIO19, U2:MISO;

net SPI_MOSI = U1:GPIO23, U2:MOSI;

net BTN_FEVER = U1:GPIO13, SW1:P1;

net BTN_BODY = U1:GPIO32, SW2:P1;

net BTN_COUGH = U1:GPIO33, SW3:P1;

net BTN_LEFT = U1:GPIO25, SW4:P1;

net BTN_RIGHT = U1:GPIO27, SW5:P1;

net BTN_APPOINTMENT = U1:GPIO26, SW6:P1;

net BTN_EMERGENCY = U1:GPIO12, SW7:P1;

net DBG_TX = U1:TX, J2:Pin_3;

net DBG_RX = U1:RX, J2:Pin_4;

net AUX_GPIO21 = U1:GPIO21, J3:Pin_3;

net AUX_GPIO22 = U1:GPIO22, J3:Pin_4;

net BUZZER_GPIO = U1:GPIO17, J4:Pin_1;

}

42 days

flux

0:23

The schematic is now wired with the fixed ESP32 to LoRa map, the seven grounded push buttons, the 5 V input, and the optional expansion headers. I kept SW7 on GPIO12 as requested, but avoided adding any extra pull resistor or load on that net because GPIO12 is a boot strap pin on the ESP32 and should stay low or floating at boot for reliable startup.

42 days

Reviews

Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Net Portal
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
jharwinbarrozo
43.0M
Power Net Portal
Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
jharwinbarrozo
11.4M
Generic Resistor
A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Capacitor
A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Inductor
A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
jharwinbarrozo
15.8k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
jharwinbarrozo
1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M

Project Name

Description

Village Node ESP32 DevKit and LoRa Carrier Board

Properties

System Architecture

Diagram

Pricing & Availability

Distributor	Qty 1
Digi-Key	$23.97–$32.69
LCSC	$45.48
Mouser	$11.20

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