• ESP32 Battery Management System Controller Board e5Wk

    ESP32 Battery Management System Controller Board e5Wk

    A smart ESP32-based battery management system controller board for Lithium ion battery packs/cells. Capable of communicating to wide varieties of hybrid-smart inverters with CANbus, RS485 and UART communication.

    ihscielle

    1 Comment


  • Volumetric: Wifi LED Strip controller

    Volumetric: Wifi LED Strip controller

    Wi-Fi LED strip controller made with few goals: Dual voltage support 12V and 24V 2 independent channels for color temperature adjustments No high pitch noise in all modes Powerful enough to handle current up to 17.5A (in total, limited by connectors) Control buttons on the device body Connectors for external buttons Can be used with already installed LED strips Support of open source firmware, like https://esphome.io/

    danielkaye

    1 Comment


  • Pulse Width Modulation (PWM) Controller

    Pulse Width Modulation (PWM) Controller

    This project is a Pulse Width Modulation (PWM) Controller, built around an LM555 timer IC. It controls a load connected to a MOSFET, with adjustments via a potentiometer, and uses capacitors, resistors and diodes for various functions. #PWM #controller #project #Template #projectTemplate

    cams

    1 Comment


  • ESP32 Robot Controller (messed up on purpose)

    ESP32 Robot Controller (messed up on purpose)

    Control board for autonomous or radio-controlled robots. It has inputs to connect distance sensors and encoders for autonomous mode. It can be radio controlled by the ESP32 bluetooth or by connecting a Flysky RC controller receiver to the IBUS port. It also has 3 push buttons and you can connect some kind of display by I2C to visualize and select configuration modes. Forked from original project: https://www.flux.ai/jr98/esp32-robot-controller

    greg

    1 Comment


  • ESP32 ROBOT CONTROLLER

    ESP32 ROBOT CONTROLLER

    Control board for autonomous or radio-controlled robots. It has inputs to connect distance sensors and encoders for autonomous mode. It can be radio controlled by the ESP32 bluetooth or by connecting a Flysky RC controller receiver to the IBUS port. It also has 3 push buttons and you can connect some kind of display by I2C to visualize and select configuration modes.

    santhosha

    1 Comment


  • Pulse Width Modulation (PWM) Controller 2FGw

    Pulse Width Modulation (PWM) Controller 2FGw

    This project is a Pulse Width Modulation (PWM) Controller, built around an LM555 timer IC. It controls a load connected to a MOSFET, with adjustments via a potentiometer, and uses capacitors, resistors and diodes for various functions. #PWM #controller #project #Template #projectTemplate

    josue1215

    1 Comment


  • ESP32 RS485 (Modbus) Controller Module

    ESP32 RS485 (Modbus) Controller Module

    This project is a controller module that uses the ESP32-WROOM-32E and the MAX3485 to communicate with Modbus devices. It has a USB-C port for power and data, a voltage regulator for stable operation. It also has a CH340C chip for USB to serial conversion. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #reusable #module #simple-embedded #espressif #template #MAX3485 #RS485 #maximintegrated

    josegus

    1 Comment


  • ESP32 RS485 (Modbus) Controller Module

    ESP32 RS485 (Modbus) Controller Module

    This project is a controller module that uses the ESP32-WROOM-32E and the MAX3485 to communicate with Modbus devices. It has a USB-C port for power and data, a voltage regulator for stable operation. It also has a CH340C chip for USB to serial conversion. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #reusable #module #simple-embedded #espressif #template #MAX3485 #RS485 #maximintegrated

    sabri93

    1 Comment


  • ESP32 RS485 (Modbus) Controller Reference Design ibga

    ESP32 RS485 (Modbus) Controller Reference Design ibga

    This project is a controller module that uses the ESP32-WROOM-32E and the MAX3485 to communicate with Modbus devices. It has a USB-C port for power and data, a voltage regulator for stable operation, and headers for connecting sensors and actuators. It also has a CH340C chip for USB to serial conversion. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #MAX3485 #RS485 #maximintegrated #reference-design

    1 Comment


  • ESP32 RS485 (Modbus) Controller Module

    ESP32 RS485 (Modbus) Controller Module

    This project is a controller module that uses the ESP32-WROOM-32E and the MAX3485 to communicate with Modbus devices. It has a USB-C port for power and data, a voltage regulator for stable operation. It also has a CH340C chip for USB to serial conversion. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #reusable #module #simple-embedded #espressif #template #MAX3485 #RS485 #maximintegrated

    1 Comment


  • ESP32 ROBOT CONTROLLER

    ESP32 ROBOT CONTROLLER

    Control board for autonomous or radio-controlled robots. It has inputs to connect distance sensors and encoders for autonomous mode. It can be radio controlled by the ESP32 bluetooth or by connecting a Flysky RC controller receiver to the IBUS port. It also has 3 push buttons and you can connect some kind of display by I2C to visualize and select configuration modes.

    1 Comment


  • Micro USB Motor Controller

    Micro USB Motor Controller

    The Micro USB Motor Controller is a compact and versatile solution for controlling motors via USB. #MotorController #USBControl #CompactDesign

    1 Comment


  • ESP32 RS485 (Modbus) Controller Module tJmB

    ESP32 RS485 (Modbus) Controller Module tJmB

    This project is a controller module that uses the ESP32-WROOM-32E and the MAX3485 to communicate with Modbus devices. It has a USB-C port for power and data, a voltage regulator for stable operation. It also has a CH340C chip for USB to serial conversion. #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #reusable #module #simple-embedded #espressif #template #MAX3485 #RS485 #maximintegrated

    1 Comment


  • Pulse Width Modulation (PWM) Controller rxRQ

    Pulse Width Modulation (PWM) Controller rxRQ

    This project is a Pulse Width Modulation (PWM) Controller, built around an LM555 timer IC. It controls a load connected to a MOSFET, with adjustments via a potentiometer, and uses capacitors, resistors and diodes for various functions. #PWM #controller #project #Template #projectTemplate

    1 Comment


  • Bluetooth 24-Letter LED Controller

    Bluetooth 24-Letter LED Controller

    12 V Bluetooth controller board for 24 LED letter outputs using an ESP32, I/O expansion, and low-side output drivers. Draft specification captured from an uploaded reference schematic image; exact schematic recreation needs confirmation of unreadable details.


  • ESP32 Motor Controller

    ESP32 Motor Controller

    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.


  • ESP32 Relay Controller

    ESP32 Relay Controller

    12V-powered ESP32 relay dry-contact controller with USB-C data-only programming/debug and an onboard 3.3V rail for the ESP32.

    &


  • STM32F446 CNC Laser Controller

    STM32F446 CNC Laser Controller

    Professional 3-axis STM32F446 CNC/laser motion controller for grblHAL-class firmware, with 24V input power, protected 5V/3.3V rails, USB, SWD, buffered motion outputs, filtered inputs, and a 100mm x 100mm 2-layer PCB target.


  • Water Level Motor Controller

    Water Level Motor Controller

    Analog water-level controller using an LM31 liquid level sensor input and PEL00884 brushed DC motor drive. The circuit buffers and scales the ratiometric sensor signal, derives motor current demand versus water level, shuts the motor off at 100%, and lights a green full-tank LED.


  • ESP32 Power Bus Controller

    ESP32 Power Bus Controller

    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.


  • Dual Well Pump Controller

    Dual Well Pump Controller

    Controller for two low-producing water wells that meters pump runtime/volume into an above-ground tank and inhibits pumping when an external tank-full float switch is active.


  • STM32 PSRAM Audio Synth Controller

    STM32 PSRAM Audio Synth Controller

    Compact ARM Cortex STM32 music synth controller modeled after Daisy Seed, with external PSRAM, PCM3060 audio codec, three potentiometers, eight LEDs with resistors, two buttons, audio jack, rounded-rectangle PCB, mounting holes, and row-aligned controls.


  • Flipdot 6x8 Matrix Controller

    Flipdot 6x8 Matrix Controller

    ESP32-S3 based 6x8 flip-dot matrix controller using DRV8833 H-bridges, USB-C 5V input, AP2112K 3.3V logic rail, and a 48-coil row/column inductor matrix.


  • Dual-Motor Tape Tension Controller

    Dual-Motor Tape Tension Controller

    Professional-grade STM32F407 dual-motor tape tension controller with precision load-cell ADCs, CAN interfaces, ESP32 wireless coprocessor, USB-C, external memory, and protected 12–24 V power architecture.


  • TVC Rocket Flight Controller

    TVC Rocket Flight Controller

    STM32F405-based TVC rocket flight controller with redundant IMU/barometer sensors, dual telemetry, dual power rails, servo/pyro outputs, SD logging, watchdog, USB-C, and SWD debug, reconstructed from the uploaded reference schematic image.


  • Bitcoin Miner Controller Board

    Bitcoin Miner Controller Board

    Bitcoin miner controller board revised so J2 is a dedicated USB-C USB 2.0 control and monitoring connector feeding U2, while X1 is a dedicated 25 MHz oscillator driving IC1 on ASIC_CLK for the mining subsystem.

    &


  • Carousel Horse LED Controller

    Carousel Horse LED Controller

    Production-ready ESP32-DEVKITC-32UE festival carousel horse LED controller schematic with organized Power, ESP32 + Level Shifter + LEDs, Inputs, and DMX + OLED blocks.


  • Dual PCA9685 Servo Controller

    Dual PCA9685 Servo Controller

    Compact 4-layer dual PCA9685 servo controller with Raspberry Pi 5 and STM32 Nucleo interfaces

    &

    +2


  • Board A LV Controller 00e9

    Board A LV Controller 00e9

    Per-channel low-voltage controller PCB for RIL TC/HF/LeTID and PID test benches. STM32H7, 16-bit DAC setpoints, 24-bit ADC sense (4-wire), isolated digital interface to gate driver, PT100/RH conditioning, Ethernet, interlocks. Safety-critical brain board.


  • Dual PCA9685 Servo Controller

    Dual PCA9685 Servo Controller

    4-layer dual PCA9685 servo controller with Raspberry Pi 5, STM32 Nucleo, TXS0102 I2C level shifting, 6.0V/20A servo rail, and 5.1V logic rail.


  • Dual PCA9685 Servo Controller

    Dual PCA9685 Servo Controller

    4-layer dual PCA9685 servo controller for Raspberry Pi 5 and STM32 Nucleo with TXS0102 I2C level shifting, 6V/20A servo power distribution, OE safety disable, and VSense monitoring.


  • Pi Nucleo PCA9685 Servo Controller

    Pi Nucleo PCA9685 Servo Controller

    4-layer dual PCA9685 servo controller for Raspberry Pi 5 and STM32 Nucleo with 20A servo power distribution


  • Dual PCA9685 Servo Controller

    Dual PCA9685 Servo Controller

    Dual PCA9685 servo controller PCB for Raspberry Pi 5 and STM32 Nucleo with 16 servo outputs, 5.1V logic, 6V/20A servo power, and 4-layer layout.

    &


  • DIN Rail ESP32-S3 Controller

    DIN Rail ESP32-S3 Controller

    DIN-rail ESP32-S3 mains-powered controller with isolated 5 V supply, Ethernet RJ45, USB-C service port, and central LED module connector.

    &


  • DIN Rail ESP32-S3 Controller

    DIN Rail ESP32-S3 Controller

    DIN-rail ESP32-S3 mains-powered controller with isolated 5 V supply, Ethernet RJ45, USB-C service port, and central LED module connector.


  • ESP32 8-Channel SSR RTD Controller

    ESP32 8-Channel SSR RTD Controller

    Industrial ESP32-based mains-powered controller with 220 VAC input, isolated 5 V supply, 8 SSR-controlled high-current AC output channels, and a single RTD temperature input. Layout and safety constraints must preserve reinforced isolation and separation between hazardous mains/high-current paths and low-voltage control circuitry.


  • 12-24 -> esp controller

    12-24 -> esp controller

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

    &

    +4


  • ESP32 Quadcopter Flight Controller 4ba8

    ESP32 Quadcopter Flight Controller 4ba8

    ESP32-S3 quadcopter flight controller with OV5640 24-pin DVP camera interface, Wi-Fi video link, BLE telemetry, onboard USB-C power/programming, IMU, barometer, ToF altitude sensing, lidar connector, and 4 ESC PWM outputs.

    &


  • ESP32-C3 Industrial Controller

    ESP32-C3 Industrial Controller

    Industrial ESP32-C3 controller board with isolated RS-485, protected 12V-24V input, opto-isolated digital inputs, sensor interfaces, and production debug header.


  • ESP32-S3 AI Robot Controller

    ESP32-S3 AI Robot Controller

    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.


  • Wind Turbine Boost Charger Controller

    Wind Turbine Boost Charger Controller

    High-power wind turbine charging controller that boosts a 20-40 V, up to 2000 W turbine source to charge a 48 V power bank with sensing, intelligent operating-mode control, and protection including diversion handling.


  • ESP32 PBR Controller

    ESP32 PBR Controller

    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.

    &


  • ESP32 BLDC Motor Controller

    ESP32 BLDC Motor Controller

    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.

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  • Automotive Smart Fuel Pump Controller

    Automotive Smart Fuel Pump Controller

    Automotive smart fuel pump controller with >12 V battery qualification, protected battery input, analog FSCM command following, 25 A current sensing, thermal/fault indication, blue/red LED signaling, and 5-second buzzer alert. Control and fault nets are explicitly terminated to avoid floating or undriven states; any intentionally provisional control nodes are weakly biased to safe defaults during refinement.


  • ESP32 Door Access Controller

    ESP32 Door Access Controller

    ESP32-S3 door access controller with USB-C Li-ion charging, VBAT and 12V lock power, dual 3.3V rails, I2C sensor headers, reed/PIR inputs, LED indicators, buzzer, and MOSFET plus relay lock outputs. External modules and field devices remain represented by connector placeholders with documented pinouts for later PCB and validation work.


  • Industrial Embedded I/O Controller Board

    Industrial Embedded I/O Controller Board

    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.


  • STM32F4 Flight Controller Template

    STM32F4 Flight Controller Template

    This is a STM32F4 Flight Controller template with 6-axis Accelerometer, Gyroscope. With OSD generator MAX7456EUI. #drone #flightController #STM32F405 #controller #OSD #video #referenceDesign #project #MPU6000 #template


  • STM32F4 Flight Controller Template

    STM32F4 Flight Controller Template

    This is a STM32F4 Flight Controller template with 6-axis Accelerometer, Gyroscope. With OSD generator MAX7456EUI. #drone #flightController #STM32F405 #controller #OSD #video #referenceDesign #project #MPU6000 #template

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  • STM32F4 Flight Controller Template

    STM32F4 Flight Controller Template

    This is a STM32F4 Flight Controller template with 6-axis Accelerometer, Gyroscope. With OSD generator MAX7456EUI. #drone #flightController #STM32F405 #controller #OSD #video #referenceDesign #project #MPU6000 #template


  • STM32F4 Flight Controller Template

    STM32F4 Flight Controller Template

    This is a STM32F4 Flight Controller template with 6-axis Accelerometer, Gyroscope. With OSD generator MAX7456EUI. #drone #flightController #STM32F405 #controller #OSD #video #referenceDesign #project #MPU6000 #template

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