Kitchen LED Strip Motion & Ambient-Light Controller with 12 V PWM Dimming, PIR Sensor, Ambient Light Sensor, MCU Control, Buck Regulator, and Protection Circuits (TVS, PTC Fuse, Reverse-Polarity Diode) #KitchenLEDController #MotionDetection #AmbientLightSensor

Bluetooth RC car controller using ESP32-WROOM-32E, TB6612FNG dual H-bridge, XL4015 5V buck module, DC barrel battery input, dual 2-pin motor screw terminals, 1000uF VM bulk capacitor, 100nF decoupling, 10k EN pull-up, 30 mil power traces, 10 mil signal traces, and ESP32 antenna edge keep-out.

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

USB Type-C PD Downstream-Facing Port design featuring TPS25740 PD controller, LM5175 buck converter, integrated protections and precision monitoring..

ESP32-based motor controller using a buck converter and SparkFun TB6612FNG motor driver, with a 2-terminal DC motor placeholder for the JGA25-371 gearmotor.

Snowflake: USB‑C PD-Powered Air‑Conditioned Clothing Controller with Integrated XL1509‑ADJ Buck Converter (15 V to 9.3 V Peltier Output), NE555 PWM Fan Control, and LM393 Over‑Temperature Cutoff #USBPD #BuckConverter #Peltier #NE555 #LM393 #PWMControl #OverTemperature

Marine-Grade 5-Channel PWM LED Controller with ESP32 and Integrated 12V→5V Buck

Buck Regulator Positive Output Step-Down - DC-DC Controller IC 32-WQFN (5x5)

Industrial-grade embedded I/O controller schematic with 9-36V protected input, 5V buck, 3.3V logic, STM32F103C8T6 MCU, industrial dry/wet/pulse/analog inputs, 12V semiconductor-switched output, RS-485/UART communications, external watchdog, SWD/debug features, and interview-ready engineering notes.

Golf ball dispenser controller with protected 12V-24V DC input, LM2596 5V buck, ESP32 control, INA219 relay-coil sensing, and dry-contact relay output.

Modular ESP32 dev-board smart photobioreactor controller with 12 V input protection, 5 V buck conversion, 3.3 V regulation, connectorized sensors and actuators, I2C LCD and RTC, SPI SD logging, GPIO breakout, test points, and prototype-friendly high-power/low-power partitioning.

STM32F401 Blackpill-style railway crossing safety controller with dual 12V input selection, LM2596 5V buck, AMS1117-3.3 MCU rail, horn relay driver, and edge-mounted off-board sensor, servo, and UART connectors for modular prototyping.

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-C3 based controller for two 5 V, 150 mA servos from a 9–32 V DC input. Uses an LMR51625 buck regulator for the 5 V rail and derives 3.3 V logic power for the ESP32-C3.

ESP32-centered controller PCB with 14.8 V battery bus, external 3.3 V and 12.2 V buck converter interfaces, motor logic headers, and servo driver connections.

Multi-layer circular BLDC motor controller for a 24 V, up to 750 W system using an ESP32-WROOM with DRV8323RS gate driver, six external MOSFETs, 2 mOhm shunt current sensing, bottom-mounted AS5600 encoder, USB-C programming/user interface, 3.3 V logic powered from the DRV8323RS buck regulator, and heavy motor phase pads sized for approximately 30 A current paths. Target layout is a circular board around 50 mm diameter, expandable if required for thermal management, power routing, and signal integrity.

Production-ready industrial 6 V battery-powered LoRaWAN DC motor controller using ESP32-S3FN8, SX1262 AU915, CP2102N USB-C programming, DRV8833 motor drive, TLV62568 buck regulation, protected battery input, and Heltec LoRa V3-compatible development workflow.

Multi-subsystem ESP32-S3 coffee maker/alarm controller board for a Coffee Waker appliance. The design uses an ESP32-S3-WROOM-1-N8R8 module as the main Wi-Fi/Bluetooth MCU, with USB-C 2.0 device connectivity through a USB4105-GF-A connector, 5.1 kΩ CC pull-downs, and USBLC6-2SC6 ESD protection on the USB D+/D− pair. Power architecture includes a 12 V input on a JST VH B4P connector, a TPS62932 buck regulator generating the 5 V rail, a TLV1117LV33 3.3 V LDO for MCU/logic power, and TPS22919 load switches for controlled 3.3 V/5 V peripheral rails. Functional blocks include an NAU7802 load-cell ADC on I2C with two differential load-cell channels, a MAX98357A I2S audio amplifier/DAC with speaker/output filtering, a microSD socket on SDIO, I2C/test headers, UART/programming header, and auxiliary JST VH connectors for wake-light or external loads. The high-voltage section includes 120 VAC input/output screw terminals, a 5 V SPST-NO relay rated 15 A / 240 VAC max, a 1 A fuse, MOV surge suppression, diode snubber, and a dedicated heater output terminal.

Industrial dual motor controller using an ESP8266 NodeMCU and L298N dual H-bridge for 2x 12V 2A DC motors, with MQTT remote control, manual override buttons, 5-bit DIP addressing, reset input, status LEDs, SS34 reverse-polarity protection, 5A fuse, LM2596 5V buck conversion, TVS surge protection, and future expansion provisions for INA219 current sensing, OTA firmware, RS485, and enclosure integration.

Production-Ready 2-Layer ESP32-S3 Controller PCB: Dual WROOM-1U/WROOM-1 Footprints, ESD-Protected USB-C Debug, Protected 12 V Input (Fuse, Reverse Diode, TVS), TPS5430DDA Buck + TLV70033DDCT LDO Power, Integrated TMC2209 Stepper Driver, 3× 12 V/2 A LED Channels with Screw Terminals, Comprehensive Test Points, Full BOM/Pin Map/Gerbers, Logic Power Supply Audited and Validated #ESP32S3 #PowerManagement #MotorControl #LEDControl #ProductionReady #PowerAudit