ESP Dev-Kit V1 breakout board with connections to LCD screen and DHT Temperature Sensor.

ThermaLink-32 schematic using an ESP32 DevKitC V4 with IR transmit/receive, DHT22, HC-SR501, and push-button inputs for a JLCPCB 2-layer design.

ESP32-S3-WROOM-1 DEVKIT 2.4 GHz Wi-Fi + Bluetooth® LE SoC

ESP32 DevKit V1 sensor hub powered from a 12V barrel jack through an LM2596 5V buck converter, with gas, temperature, flame, thermal camera, OLED, relay outputs, buzzer, and ESP32-CAM connections.

PCB de control para planta térmica experimental con ESP32 DevKit V1, LM2596, LM35, TM1637 y etapa MOSFET IRLZ44N para calefactor 12V/40W.

PCB de control remoto ESP32 DevKit con joystick, 4 botones, batería LiPo recargable por USB y LEDs de batería/carga

Circuito industrial modular con ESP32 DevKit V1 para monitoreo preventivo de refrigeradores industriales y cafeteras, con entrada 12VDC, conversión a 5V/3.3V, sensores protegidos y lógica de 3.3V.

2-layer SMD-only ESP32 DevKit V1 relay automation carrier board with LM2596 module pads, ULN2803A driver, relay wire pads, LEDs, pull-downs, and no drilled holes.

Nodo IoT de monitoreo energético distribuido basado en ESP32 DevKit para medición de voltaje, corriente y potencia con sensores SCT-013 y ZMPT101B, alimentación desde HLK-PM01, conversión a 3.3 V, protección/aislamiento y comunicación inalámbrica en tiempo real.

Village Node ESP32 DevKit and LoRa Carrier Board

Devkit A7672 GSM Module

Welcome to your new project. Imagine what you can build here.

ESP32 DevKitC 38-pin carrier PCB for ultrasonic sensing, servo control, analog microphone and potentiometer inputs, and six LED building channels from a regulated 5V supply.

PCB para ecualizador digital de audio de 6 bandas con ESP32 DevKitC V4, seis potenciómetros deslizables B103 usados en modo mono, filtros RC de 0.1uF por banda y layout con potenciómetros alineados para panel frontal.

Compact ESP32-S3 AI robot controller with DevKitC-1 module, 2S Li-ion power input, 5V buck regulator, optional clean 3.3V rail, TB6612FNG dual motor driver, OV2640 camera FPC, I2S audio, OLED, ultrasonic and TCRT5000 sensor headers, and a compact 2-layer PCB prepared for Gerber export.

ESP32 DevKitC-32 Carrier PCB (No Grove, No Battery LED Bargraph, No Button)

Compact 4-Layer ESP32-S3-DevKitC-1 Nano-Style Carrier Board with I²S Audio, Class-D Amp, MicroSD, LiPo Power, WS2812B, and IR; featuring updated all-layer antenna keepout, additional decoupling capacitors on 5 V/3.3 V rails, four M3 mounting holes, finalized rounded-corner PCB outline and hand-friendly width, centered ESP32-S3-DevKitC-1 and symmetrically aligned MicroSD/I²S mic, centered bottom silkscreen title text, and zero-error ERC/DRC; layout is finalized and ready for routing #ESP32S3 #DevKitC1 #antennaKeepout #decoupling #M3MountingHoles #routingReady

- ESP32 DevKitC V4 (microcontroller) - 2x BME280 sensors (temperature, humidity, pressure) - 8ch relay board with 12VDC relays (NO/NC SPDT) - 12VDC power supply - USB connectivity - Various components (resistors, caps, opto couplers, op-amps, motor drivers, multiplexers) - 2x SPDT relay boards (for fan fail-safe) - 4x 2ch bidirectional level controllers (3.3V to 5V) - ESP32 GPIO 21 (SCL) to BME280's SCL - ESP32 GPIO 22 (SDA) to BME280's SDA - ESP32 GPIO 5 (digital output) to 8ch relay board input - ESP32 GPIO 25 (PWM output) -> Fan PWM (0-255 value) - ESP32 GPIO 26 (PWM output) -> Light PWM (0-255 value) - ESP32 GPIO 34 (analog input) -> Tachometer input (0-4095 value, 12-bit ADC) - Add a 5V voltage regulator (e.g., 78L05) to power the ESP32 and other 5V components - Add a 3.3V voltage regulator (e.g., 78L03) to power the BME280 sensors and other 3.3V components - Include decoupling capacitors (e.g., 10uF and 100nF) to filter the power supply lines - Ensure proper grounding and shielding to minimize noise and interference -- Power supply: - VCC=12VD Available, to be used for LM358P - 5V voltage regulator (78L05) - VCC=5V, GND=0V - 3.3V voltage regulator (78L03) - VCC=3.3V, GND=0V - 3.3V voltage regulator (78L03) - VCC=3.3V, GND=0V - Fan PWM boost: - Input (3.3V PWM): 0-3.3V, frequency=20kHz - Output (5V PWM): 0-5V, frequency=20kHz - LM358P op-amp (unity gain buffer) - VCC=5V, GND=0V - R1=1kΩ, R2=1kΩ, R3=1kΩ, R4=1kΩ - C1=10uF (50V), D1=1N4007 - 0-10V signal conditioning: - Input (3.3V PWM): 0-3.3V, frequency=13kHz - Output (0-10V): 0-10V, frequency=13kHz - LM358P op-amp (non-inverting amplifier) - VCC=5V, GND=0V - R5=2kΩ, R6=1kΩ, R7=2kΩ, R8=1kΩ, R9=1kΩ, R10=2kΩ - C2=10uF (50V), R11=10kΩ (1%) ------------------------------------ Fan PWM Boost (3.3V to 5V): 1. ESP32 GPIO 25 (PWM output) -> R1 (1kΩ) -> VCC (3.3V) 2. ESP32 GPIO 25 (PWM output) -> R2 (1kΩ) -> Vin (LM358P) 3. LM358P (Voltage Follower): - VCC (5