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

Spot the mistake! Learn how to use AI to conduct a design review on an ESP32-based control board. This project is ideal for autonomous or radio-controller robots featuring inputs for sensors, encoders, and a Flysky RC receiver, plus an I2C display for configuration.

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

Spot the mistake! Learn how to use AI to conduct a design review on an ESP32-based control board. This project is ideal for autonomous or radio-controller robots featuring inputs for sensors, encoders, and a Flysky RC receiver, plus an I2C display for configuration.

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

HVAC System controller board. Features 4 10A250VAC relays (For power control), a BME680 for environmental monitoring and a 5v-35v driver to control up to 2 DC motors. #esp32 #iot

Phase Amp Controller 5.8GHz - JLCPCB rules

This project involves designing a PCB for the lid assembly of an open-source laptop. The design integrates various sensors, including a microphone, camera, and ambient light sensor, ensuring precise alignment with the display glass. It features touch sensors to control LED lighting, spring-loaded contacts for touch-key interaction, and 3D-printed light diffusers for efficient lighting. Additionally, the PCB includes a power management system with status LEDs and a PFC for connecting to the external laptop PCB. The goal is to create a versatile, upgradeable, and user-friendly component for the laptop's lid. Specific parts of the project include 1. Microphone - Audio input capture 2. Ambient Light Sensor Module - Light intensity measurement 3. Camera - Video capture 4. LDO Regulators (3 TLV74 Series) - Voltage regulation for different components 5. Crystal - Clock generation 6. Touch Sensor Controller - Touch-key interaction 7. Flip-Flop - State keeping in logic circuits 8. LEDs (LTRBR37G Series) - Lighting indication 9. FPC Connector - Interface with main laptop PCB

Programmable USB Type‐C Controller with Power Delivery(PD) support. Include ESD Protection Diodes. #project-template #USB #typec #powerdelivery #template

The RC522 is a 13.56MHz RFID module that is based on the MFRC522 controller from NXP semiconductors. The module can supports I2C, SPI and UART and normally is shipped with a RFID card and key fob. It is commonly used in attendance systems and other person/object identification applications. #RFID #Module

Specially designed for IoT ESP-WROOM-32E-based main controller board with dual-core chips. #ESP32 #ESP32WROOM #RF #WIFI #MCU

Six-block automotive SmartDash controller for the 2011 Nissan Pathfinder R51, integrating protected vehicle I/O, CM5 compute, STM32 control, audio amplification, and factory-camera capture.

USB-C-powered ESP32 controller for a 12 V RS485 ultrasonic flow sensor on a 3/4-inch PVC pipe, with WiFi telemetry, flow totalization, status indicators, and UART programming.

Battery-powered quadruped robot controller with ESP32-S3, PCA9685 eight-servo breakout, I2S audio, and relay-switched 5V RGB lighting.

Four-port USB-C HID translation/accessibility prototype with controller host input, console-facing HID device output, PC configuration/debug, and dedicated USB-C power input.

Modular 3.3V Arduino Nano ESP32 controller with I2C-connected Modulino Buttons and LED Pixels nodes plus Qwiic JST-SH daisy-chain connector.

Swiftlane SRB Lite relay controller layout under production cleanup. Updated board-level rules to conservative manufacturable defaults (0.15 mm min trace and keep out, 0.25 mm board inset, explicit preferred widths) and audited remaining PCB blockers. Current blockers remain concentrated in overlapping copper, floating copper, and unrouted priority nets pending further interactive layout cleanup and re-route passes.

Industrial ESP32-S3 MicroPython Controller with USB Hub, HDMI Output, Isolated Relay, and Buzzer Driver

ESP32 Wrist–Hand Orthosis Controller v1.0

Production-Ready Automotive Crash Detection Controller PCB (90x60mm) – 2-Layer with Arduino Nano, SIM7600E-H, IMU & RF

Create a schematic diagram of an electric fence controller using the NE556 dual timer IC. The circuit must include all components with clear electronic symbols (resistors, capacitors, transistors, diode, relay) connected by lines as in a real circuit diagram. Specifications: 1. Power supply: - Vcc = +12V connected to pin 14 of the NE556. - Pin 1 of the NE556 to ground. 2. Timer A (active 10 seconds): - Pin 2 (Trigger A) receives a pulse from transistor Q2 (contact detector). - Pin 6 (Threshold A) connected to Pin 7 (Discharge A). - R1 = 1 MΩ between Pin 7 and +12V. - C1 = 10 µF between Pin 6 and ground. - Pin 3 (Out A) goes through a 4.7 kΩ resistor to the base of Q1 (BC547 NPN transistor). - Pin 3 also connected via a 100 nF capacitor to Pin 13 (Trigger B of Timer B). 3. Timer B (rest 10 seconds): - Pin 9 (Discharge B) and Pin 8 (Threshold B) connected together. - R2 = 1 MΩ between Pin 9 and +12V. - C2 = 10 µF between Pin 8 and ground. - Pin 12 (Out B) can be optionally used to block retrigger of Timer A. 4. Relay driver stage: - Q1 = BC547 NPN transistor. - Base connected through 4.7 kΩ resistor to Pin 3 (Out A). - Emitter to ground. - Collector connected to one side of the relay coil. - Other side of relay coil connected to +12V. - A diode 1N4007 placed in parallel with the relay coil (cathode to +12V, anode to collector of Q1). - Relay contacts switch the +12V supply to the electric fence energizer. 5. Contact detector: - Shunt resistor ≈0.1 Ω placed in series with the fence output. - Q2 = BC547 NPN transistor, base connected to the shunt, emitter to ground, collector to Pin 2 (Trigger A). - When current flows through the shunt, Q2 provides a trigger pulse to Timer A. Please draw the schematic in a standard style with components connected by straight lines, not in block diagrams. Show clear pin numbers of the NE556 and all external components.

This project is a LoRa telemetry with ATGM336H GNSS controlled by ESP32-S2-mini Template #drone #LoRa #rfm9x #ESP32 #controller #referenceDesign #project #template #ATGM336H #GNSS

A precise stepper motor controller using the RP2350A MCU (Raspberry Pico 2) and L297/L298N drivers for two-phase bipolar motors. Great for robotics and automation applications. #RP2350 #Pico2 #StepperMotorDriver #L297 #L298N #Robotics #Automation #MotorControl

I2C to dual PWM controller. The LED-Warrior18, manufactured by Code Mercenaries, is an I2C to dual channel PWM LED driver specifically designed to provide seamless brightness control for LED applications. This component, available in SOIC8 package (LW18-S) and as a ready-to-use module (LW18-01MOD), offers dual 16-bit PWM outputs with a dimming range from 0.001% to 100% and operates at a PWM frequency of 730 Hz. It supports programmable period lengths for higher-frequency or lower-resolution operation and includes an 8-bit data to logarithmic mapping feature for smoother dimming operations with just 256 steps. The LED-Warrior18 is engineered for minimal external circuitry with a 5V power supply requirement, offering ease of use in various lighting applications. It also features a sync mode for synchronized control of multiple units and customizable power-on status settings, making it highly versatile for standalone operations or integrated systems. Additionally, custom variants of both the chip and module are available, catering to specific application needs. The module version, LW18-01MOD, simplifies integration by including terminal blocks and supporting up to 4A load sink current for each output. The LED-Warrior18 stands out for its straightforward interface and operational flexibility, providing a comprehensive solution for advanced LED dimming and control projects.

ifusb is a simple toolkit to access GPIO/UART/SPI/I2C from USB host through microcontroller. It was initialy attended for use with eink controller project, but can be used as a tool for any project, like a Bus Pirate board or a FT2232 chip.