# Top User Projects
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## Description
Explore innovation and practical design in Flux.ai's top user projects. This collection highlights outstanding printed circuit board (PCB) projects crafted by our community members. Featuring a range of complexities and applications, these projects showcase the real-world potential and diversity of PCB design.
The top user projects section is an invaluable resource for inspiration and learning. Whether you’re a veteran PCB designer seeking fresh ideas or a newcomer aiming to understand various design strategies, these projects offer a wealth of knowledge and insight into the dynamic world of PCB design.
By highlighting the achievements of our community, the top user projects stand as a testament to the innovative spirit and collaborative nature of Flux.ai’s users, fostering a culture of knowledge sharing and continuous advancement in the field of electronics design.
## Items (Page 1 of 28932, 723298 total)
- [ESP32 ROBOT CONTROLLER](https://www.flux.ai/jr98/esp32-robot-controller.md) - 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.
- [ESP32 Battery Management System Controller Board](https://www.flux.ai/jharwinbarrozo/esp32-battery-management-system-controller-board.md) - ESP32 Battery Management System Controller Board – An innovative solution for smart power control and audio recording integration. This cutting-edge board harnesses the power of the ESP32 microcontroller to deliver precise battery management and seamless integration with an S3 Voice Recorder subsystem. Perfect for advanced IoT applications, the board’s robust design ensures reliable energy optimization, remote monitoring, and real-time performance coupled with high-quality voice recording capabilities. Experience enhanced connectivity, efficient power regulation, and smart audio functionality, all in one compact package that paves the way for next-generation smart devices.
#ESP32 #BatteryManagement #VoiceRecorder #IoT #SmartDevices #ControllerBoard
- [Powerbank board](https://www.flux.ai/jecstronic/powerbank-board.md) - Fully-Integrated Bi-directional PD3.0 and Fast Charge Power Bank SOC with Multiple Input and Output Ports based on IP5328P
- [PCB Business Card V2](https://www.flux.ai/markwuflux/pcb-business-card-v2.md) - Change History from V1:
-13.56MHz tuning
-larger instruction font
-put some stuff on the back
#template
I wanted to create a business card that has some functionality and shows off a bit of my portfolio IRL:
-NFC to my flux page -here's the [instructables](https://www.instructables.com/PCB-Business-Card-With-NFC-Make-Yours-With-NFC-QR-/)
-Put a bunch of modules on it
Find the BoM [here](https://www.digikey.com/short/2db2vnmp)
- [ENVIRONMENTAL EXPOSURE RISK METER](https://www.flux.ai/jr98/environmental-exposure-risk-meter.md) - Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.
- [USB Security Token](https://www.flux.ai/jharwinbarrozo/usb-security-token.md) - This design implements a USB security token powered by an STM32 microcontroller. The device is engineered for compactness and efficient PCB integration while ensuring robust security features. Key elements of the design include:
- **Microcontroller Core:** A STM32F103T8U6 serves as the primary processing unit, handling USB communication and security protocols.
- **USB Interface:** A USB-A plug provides connectivity to the host. Dedicated net portals ensure proper routing of the VBUS, D+, D–, and ground signals.
- **Power Regulation:** A low-dropout regulator supplies a stable 3.3V operating voltage, ensuring low noise and proper current supply to the microcontroller and peripherals.
- **Signal Conditioning and EMI Filtering:** An EMI filter is used to maintain signal integrity and reduce interference while preserving the security token’s functionality.
- **Synchronous Elements:** A ceramic resonator is incorporated to provide a precise clock source for USB data transfer and microcontroller operations.
- **Additional Components:** Surface-mount resistors, capacitors, and LED indicators are deployed to ensure proper conditioning, decoupling, and status feedback. Their compact 0402 packages facilitate a highly integrated design.
- **Connectivity and Net Portals:** Custom net portals are used throughout the schematic to streamline connectivity and PCB layout, keeping the design modular and easy to modify.
This USB security token is designed with industry-standard components and robust connectivity to ensure secure, reliable operation in portable security applications.
#USBToken #STM32 #PCBDesign #SecurityTechnology #PortableSecurity #Microcontrollers #USBInterface #PowerRegulation #EMIProtection #CompactDesign
- [[2-layer] JLCPCB Constraints](https://www.flux.ai/jharwinbarrozo/2-layer-jlcpcb-constraints.md) - Use this template if you're planning to get your 1 to 2-layer board manufactured in JLCPCB. It has the via min/max and trace width constraints already baked as global rules. #project-template #template #manufacturer-design-rules
- [PiStrument](https://www.flux.ai/giulioz/pistrument.md) - Raspberrypi Pico-based sampler, sequencer + drum machine w/ an embedded speaker, Adafruit I2S amplifier and momentary step switches, evoking the tr808 synthesizer
- [Portable LoRaWAN board](https://www.flux.ai/vasyl/portable-lorawan-board.md) - Ultra-Low-Power Solar CO₂ Monitor with Programmable LoRa-E5, Low-Power I²C CO₂ Sensor, MPPT Solar Input and 10-Year Battery Life #co2 #lowpower #mppt #solar #lora #stm
- [BRAVE POWER MANAGEMENT BOARD](https://www.flux.ai/collinsemasi/brave-power-management-board.md) - Brave is a versatile and efficient power board that can provide 12v, 5v and 3.3v outputs for various applications. It can be powered by battery or solar panel, and the battery can be recharged by solar energy. It can also be powered by a USB port if needed. This board is ideal for IoT projects that require reliable and stable power supply in different environments. #internetOfThings
#IoT #power #management #usb
- [ArduinoMicro-MidiFreak](https://www.flux.ai/ebarranco/arduinomicro-midifreak.md) - Arduino Micro - MIDI Controller
It uses the Arduino Micro as USB midi controller. It has 1 capacitive touch octave (12 Keys), 2 rotary encoders, a button, and a proximity sensor that can be used as a mod wheel, sustain pedal or MPE.
The oled screen displays the different configuration options. It can be set to any channel or C.C. so it can be used to modify other instruments behavior. The capacitive touch keys can also be used as 12 drum machine pads.
- [MIDI controller PCB](https://www.flux.ai/vasy_skral/midi-controller-pcb.md) - This device will be connected to computer through type-C and recognize as MIDI device. User can change two effects(A and B) from lists, effect speed(Tempo) and volume. #audioDevices
- [USB-C to 4 USB-A Hub V1](https://www.flux.ai/vasy_skral/usb-c-to-4-usb-a-hub-v1.md) - Introducing my USB-C to 4 USB-A Hub V1, a compact and efficient solution for expanding your device's connectivity. Easily connect multiple USB-A peripherals to a single USB-C port. The USB-C and USB-A high speed differential pairs were done with the help of Flux Automated Impedance Control. #USBCHub #Connectivity
#project
- [Robo Project](https://www.flux.ai/vasy_skral/robo-project.md) - The Robo Project is a mobile robotic platform featuring a Particle Argon board, 4 motor-wheels controlled by L293D drivers, and an HC-SR04 ultrasonic sensor for obstacle detection. It's ideal for exploration, remote control, and robotics education. #project #robot #L293D #car
- [ESP32-WROOM-32E Reference Design](https://www.flux.ai/vasy_skral/esp32-wroom-32e-reference-design.md) - This project is a reference design for an ESP32-WROOM-32E based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP32 #ESP32WROOM #RF #WIFI #MCU #simpleEmbedded #espressif #template .
- [Mono Audio Amp](https://www.flux.ai/vasy_skral/mono-audio-amp.md) - 20-W MONO CLASS-D AUDIO POWER AMPLIFIER with terminal block connector for a speaker #audioDevices
- [[Example] Simulation of Astable Multivibrator Circuit](https://www.flux.ai/jharwinbarrozo/example-simulation-of-astable-multivibrator-circuit.md) - A simulated blinking LED circuit using an astable multivibrator a.k.a "flip-flop" as a square wave generator. It also includes PCB layout of the project.
- [Arduino Pro Mini 328 - 3.3V/8 MHz](https://www.flux.ai/jecstronic/arduino-pro-mini-328-3p3v8-mhz.md) - Arduino that runs an 8 MHz bootloader on a super small, super thin board.
- [BMS](https://www.flux.ai/adrian95/bms.md) - DIY BMS using ATTINY841-SSU this hardware has a higher balance current, fuse and TVS diode to help with voltage spikes.
Most importantly, an external crystal to the micro controller (attiny841) which means the device is more reliable in low voltage situations
- [WS2812 Board](https://www.flux.ai/vasyl/ws2812-board.md) - WS2812 board based on ESP32, can be used for projects for identification
#WS2812 #esp32 #wifi
- [STM32MP1 Linux Card](https://www.flux.ai/vasy_skral/stm32mp1-linux-card.md) - This project designs a Linux Single Board Computer using STM32MP157FAC1, featuring DDR memory, a power management IC, USB and SD card interfaces, and essential user controls, aimed at versatile embedded applications.
- [Raspberry Pi Pico Shield Template](https://www.flux.ai/jharwinbarrozo/raspberry-pi-pico-shield-template.md) - Explore the Raspberry Pi Pico Template
Unleash the power of these flexible microcontroller boards, starting at just $4.
The Raspberry Pi Pico series features a range of compact, high-performance boards powered by the RP2040 chip.
#project-template #template #raspberry #pi #pico
- [PCB Business Card V2](https://www.flux.ai/nico/pcb-business-card-v2.md) - Change History from V1:
-13.56MHz tuning
-larger instruction font
-put some stuff on the back
I wanted to create a business card that has some functionality and shows off a bit of my portfolio IRL:
-NFC to my flux page -here's the awesome [instructables](https://www.instructables.com/PCB-Business-Card-With-NFC/)
-Put a bunch of modules on it
Find the BoM [here](https://www.digikey.com/short/2db2vnmp)
- [Audio Electronics | Copilot Preset](https://www.flux.ai/nico/audio-electronics-or-copilot-preset.md) - Servo Control Module with Battery Protection and UI for 100×60×50 mm Enclosure
- [16 channel relay module](https://www.flux.ai/jharwinbarrozo/16-channel-relay-module.md) - 16 channel relay that will allow you to control different types of electrical loads
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