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PID PRESSURE CONTROLLER ARDUINO BASED
Lucia Sep 17,2026
The project is about building from scratch a water pressure regulator for a DC pump, based on ST micro in Arduino environment. PCB made with KI-CAD 10. Sensor will be a 4-20 mA probe, SW will be PID based with OLED display. Also some extra opto insulated I/O and LEDs for status.However the project is modular and any i2c sensor or 4-20 mA sensor can be used.
9th Project Design Contest-Open Theme Arduino Home Automation
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Wireless Game Controller V1
Arnov sharma Sep 17,2026
Greetings everyone and welcome back.This is my prototype for a wireless Bluetooth game controller built around the Arduino Nano ESP32.The idea behind this project is to eventually build a completely open-source game controller, from the electronics and PCB to the enclosure and firmware, so that anyone can build their own controller, modify it, or use the design as a starting point for their own projects.This prototype is the first step towards that goal. I wanted to test the core electronics and...
9th Project Design Contest-Open Theme DIY USB
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Interfacing OLED Display with Arduino
Jain Sep 15,2026
OLED displays are a useful upgrade over traditional character LCDs when an Arduino project needs a compact graphical interface. Since OLEDs provide individual pixel control, they can display text, shapes, icons, graphics, and simple animations while maintaining a thin and lightweight form factor.In this project, I interfaced both I2C and SPI versions of a 0.96-inch 128×64 OLED display with an Arduino Nano. Both displays use the SSD1306 controller, making them a good choice for experimenting with...
arduino oled display embedded systems
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ARMduino UNO PY32F030
Sep 14,2026
# ARMduino UNO PY32## Project StoryWhat if the classic Arduino Uno kept everything that made it so popular, but received a much more modern MCU?That was the idea behind **ARMduino UNO PY32**, an open-source Arduino Uno-compatible development board based on the **Puya PY32F030K28U6**, replacing the traditional ATmega328P while keeping the familiar Uno ecosystem, pinout, shields, and modules.I wanted to experiment with how far the classic Arduino Uno design could be modernized without losing the s...
9th Project Design Contest-Open Theme DIY Development board
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Trident MCU Sandbox
Kumar Sep 12,2026
Trident MCU Sandbox This board is a combined version of Arduino Nano, ESP32 32E, Raspberry Pi Pico micro-controllers.Also has a battery holder and a battery protection plus charging circuit. Although you can charge it through a Mobile Charger BUT it is generally recomended to charge it through a Laptop. This board also features an adjustable Micro SD card slot, means you can connect the Micro SD card to any of these micro controller through jumper wires. Also have three OLEDs 1 for each mirocont...
Arduino ESP32 Raspberry pi
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Tiny contacts
Ghirardelli Sep 08,2026
Tiny ContactsAn ultra-compact 4-channel SMD relay board engineered for space-constrained IoT and home automation setups. Designed to interface low-power microcontrollers (3.3V/5V) with medium loads seamlessly.️ Key FeaturesUltra-Compact Footprint: Only 42 mm x 38 mm, perfect for custom enclosures and tight spaces.4-Channel Relay Control: Built with Omron G6K-2F-Y low-signal SMD relays for fast, reliable switching.Integrated Driver IC: Powered by the ULN2003A Darlington transistor array, protecti...
relay Arduino ESP8266
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Endstops Breakout Board
Brandi Sep 04,2026
If you've ever wired more than two or three limit switches to a microcontroller, you already know the pain: a rat's nest of resistors, a breadboard that shakes loose the moment the machine starts moving, and, worst of all, endstops that trigger randomly because of electrical noise picked up next to your motor cables.I hit this exact wall while working on a multi-axis project that needed six independent axes, each with its own Min and Max limit switch Instead of dead-bugging resistors and capacit...
Arduino Board Development Board
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Mini drill PCB_2026-08-28 FINAL
Aug 29,2026
It's an electric screwdriver. I made it because I unscrew things a lot and it makes my hands hurt. It uses a DRV module to spin the geared motor both directions to screw and unscrew. It requires a set of screw heads that have a hex bottom so that it fits. If it doesn't, you can 3d print your own.
Screwdriver Motor DRV8833
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King Of The Hill - ESP32 based timer
J Aug 27,2026
KOTH-TimerA DIY Arduino Nano ESP32 King of the Hill timer for Nerf, foam flinging, skirmish games, and objective-based events.KOTH-Timer is an open-source physical game timer with arcade buttons, TM1637 displays, battery monitoring, and a local phone-friendly referee/admin web interface. It is designed for two-team King of the Hill games where players physically hold a button to capture the objective.This project is based on a working timer that has been tested successfully at local Nerf events....
ESP32 nerf Objective
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Reefwing Battery Monitor Shield for Arduino UNO, Fuel Gauge, Charger, and Programmable Load
Such Aug 23,2026
This shield is the hardware platform for the battery monitoring and logging project in Chapter 13 of Embedded AI: Run at the Edge (No Starch Press, 2026). The book uses battery state of charge as a running case study in exploratory data analysis and machine learning; this shield is the instrument that generates the datasets, charging, discharging, and gauging a single-cell LiPo under controlled conditions on an Arduino UNO R4 Minima.Estimating state of charge well is harder than reading a voltag...
reefwing nostarchpress embeddedAI
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