Arduino Schematics

An Arduino based electronics chess board, which is great for real time control of the devices on the chess board, but it does not use a conventional operating system like Unix/Debian/Raspian. Therefore Stockfish and most other strong chess engines won’t run on it. I believe there are a few chess engines that do run on Arduino http://chessprogramming.wikispaces.com/Arduino , but they will not be as strong as Stockfish.

Glucose meter is a medical device that determines the approximate concentration of glucose in the blood. A strip containing chemicals that react with glucose in the drop of blood is used for each measurement. Op Amp Circuit description: LMC6484 IC_D is an integrator circuit. LMC6484 IC_A and IC_C are configured as unity gain buffer amplifiers. LMC6484 IC1B is configured as a trans impedance amplifier. Arduino is used for processing of the measured glucose level. The Arduino use the built in ADC module for analog to digital conversion. Further, the Arduino helps to detect the strip also.

Inertial Measurement Unit MPU6050. HiLetgo GY-521 MPU-6050 MPU6050 3 Axis Accelerometer Gyroscope Module 6 DOF 6-axis Accelerometer Gyroscope Sensor Module 16 Bit AD Converter Data Output IIC I2C for Arduino

ATmega2560 Arduino Mega2560 AVR® ATmega AVR MCU 8-Bit Embedded Evaluation Board WITHOUT 3D model #Arduino #mega #2560 #ATMEGA2560 #template #project #project-template #Shield

Three-Terminal Fixed Positive Voltage Regulator The LM7812T is a three-terminal fixed positive linear voltage regulator IC designed to provide a stable +12V DC output from a higher input voltage source. It belongs to the widely used 78xx series regulators, where “12” indicates the fixed output voltage of 12 volts. It is commonly used in power supply circuits, embedded systems, and electronic devices that require a simple, reliable regulated 12V rail without the complexity of external components. The device operates as a linear regulator, meaning it reduces voltage by dissipating excess energy as heat, so proper heatsinking is often required for higher current loads. Key Features of LM7812T Fixed +12V output voltage Output current up to 1A–1.5A (depending on package and cooling) Input voltage range up to ~35V max Built-in thermal shutdown protection Internal current limiting and short-circuit protection Safe-area compensation for reliable operation No external components required for basic operation Good line and load regulation Low quiescent current (~8 mA typical) Available in TO-220 / TO-3 packages (LM7812T variants) Typical Applications DC power supplies (12V regulated rail) Arduino and microcontroller systems Industrial control electronics Sensor and communication circuits Battery-powered systems requiring stable 12V Audio amplifiers and small motor control circuits #CommonPartsLibrary #IntegratedCircuit #PowerManagement

Arduino Nano Every Arduino nano microcontroller module USB UPDI AATMega4809 AVR Arduino*Nano*

Arduino UNO Microcontroller Module, release 3 Arduino UNO R3 Microcontroller Module Atmel AVR USB Arduino*UNO*R3*

Arduino UNO Microcontroller Module, release 2 Arduino UNO R3 Microcontroller Module Atmel AVR USB Arduino*UNO*R2*

Arduino Nano v3.x Arduino nano microcontroller module USB Arduino*Nano*

Two-layer Arduino Uno R3 sensor shield with LoRa telemetry, load-cell, acoustic and temperature interfaces, plus PV and battery monitoring for a crab-pot buoy prototype.

Arduino Nano ESP32 industrial carrier board for the Ascent Condensation Intelligence Monitor with environmental, PT1000, condensation, RTC, SD, LiDAR, LTE expansion, relay, buzzer, and protected field interfaces.

Template for creating an Arduino MKR shield (https://www.arduino.cc/en/hardware#mkr-family) #Arduino #template #project #arduinomkr #zero

Automotive 10–16 V controller with protected dual buck rails, Arduino Nano and ESP32 DevKit modules, five opto-protected inputs, translated UART, and 5 V LED data output.

Template for creating an Arduino MKR shield (https://www.arduino.cc/en/hardware#mkr-family) #Arduino #template #project #arduinomkr #zero

Passive 2-layer Arduino UNO R4 interconnect for BME680/BME688, SHT3X, SPS30, H2, and CO sensor modules with screw-terminal Arduino wiring.

This circuit is an ultrasonic distance meter based on an ATTiny2313 microcontroller. It uses an HC-SR04 ultrasonic sensor to measure distance and displays the results on an OLED display. The power supply is constructed using a Boost converter (TPS613222A) and a 2-cell AA battery. Additionally, it also includes ISP for programming, RESET and START switches, and LED indicators. #project #Template #projectTemplate #ultrasonic #OLED #arduino #attiny2313 #TPS613222A #ISP #reusable #module #simple-embedded #microchip #sublayout

Complete protected electronics system for an autonomous agricultural rover, including Raspberry Pi and Arduino control, sensor interfaces, high-current motor and spray outputs, and robust 12 V battery power conversion.

ATmega2560 Arduino Mega2560 AVR® ATmega AVR MCU 8-Bit Embedded Evaluation Board WITHOUT 3D model #Arduino #mega #2560 #ATMEGA2560 #template #project #project-template #Shield

Prototype 650 nm free-space optical receiver with PIN photodiode front end, dual OPA209 analog/discriminator stages on ±5 V rails, and protected Arduino Nano A0/D2 interfaces.

AVR series Microcontroller IC 8-Bit 20MHz 32KB (16K x 16) FLASH 32-VQFN (5x5) #symbolWithText #SimplifiedFootprint #arduino #part

Arduino Nano R4 without headers; Renesas RA4M1 48 MHz Arm Cortex-M4 development board, 5 V logic, 256 kB Flash, 32 kB SRAM, 8 kB EEPROM, USB-C, 30-pin Nano form factor.

Example project for an Arduino MKR shield. It adds an external flash memory to the Arduino MKR. Based on the Arduino MKR Shield template. #project #arduino #shield #MKR

Template for Arduino Uno R3 Shield. Include an official pinout so you will always know Arduino names, the alternative roles of pins, which one is SDA, or SCL, etc. On PCB you can find the 3D model of the Arduino Uno R3 itself along with the board outline on the silkscreen. #Arduino #Uno #Shield #Template #project-template #project

This 3.5-inch SPI interface TFT LCD module features the high-performance ILI9488 driver chip, supporting a resolution of 480x320 and a 65K color display. It communicates via the SPI protocol, requiring only a few IO ports to power on. The module has an SD card slot and offers a GPIO expansion interface, lowering the barrier for embedded development. The touch functionality is optional and is compatible with mainstream development boards such as STM32 and Arduino. It is suitable for applications in industrial HMI, smart home control panels, portable devices, and more.

JST PH Connector Header Through Hole 2-pin 0.079" (2.00mm) battery connector JST PH 2 pin The B2B-PH-K-S is a 2-position vertical header connector with a 2.0 mm pitch, designed for mating with JST PH series crimp housings (e.g., PHR-2). It is commonly used in consumer electronics, battery connections, and small embedded systems due to its compact size and secure locking mechanism. Key Features Series: JST PH Series Number of Pins: 2 Pitch: 2.0 mm Mounting Type: Through-hole (vertical) Contact Type: Male pin header Mating Type: Friction lock (secure connection) Current Rating: ~2 A (typical, depends on wire and conditions) Voltage Rating: ~100 V Contact Material: Copper alloy (tin-plated) Housing Material: UL94V-0 rated plastic (flame-retardant) Operating Temperature: Typically -25°C to +85°C Typical Applications Battery connectors (Li-ion/LiPo packs) Power supply connections in small devices Embedded systems (e.g., Arduino, sensors) Consumer electronics (fans, LEDs, small appliances) #CommonPartsLibrary #Connector #Header #JST-PH