Arduino Schematics
Arduino WS2812b Controller Shield
The Arduino WS2812b Controller Shield is a shield designed to offload the implementation of the WS2812b protocol to the shield. It is implemented on an ATtiny85, and the Arduino communicates with the shield over standard SPI. The code for the ATtiny85 can be found at https://github.com/k3jph/ws2812b-spi-controller
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Arduino Uno R3 Relay Shield
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
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Nodemcu-12E ESP8266 Smart Light
NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).
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Openspritzer
OpenSpritzer, an open hardware pressure ejection system for reliably delivering picolitre volumes. Designed for ease of use, robustness and low-cost, the “Openspritzer” is an open hardware “Picospritzer” as routinely used in biological labs around the world. The performance of Openspritzer and commercial alternatives is effectively indistiguishable. It uses Arduino Nano.
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Arduino blood glucose meter shield
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.
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Electronic Chess Board
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.
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Chess
Electronics Chess Board: Electronic DGT chess boards are accurate and fast chess move input devices. The chess boards has 2mm neodymium magnet to move the chess piece. The processing unit Arduino has a AI based program to play chess as opposite player. The boards register all moves and record the games. Component used are: Neodymium magnet, reed switch, Arduino, Diode.
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Arduino blood glucose meter shield
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.
1 Star
Arduino Uno R3 Shield Template
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
Ultrasonic Distance Meter _v1
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 #referenceDesign #simple-embedded #microchip #template #reference-design .
B2B-PH-K-S
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
USB4105-GF-A
USB-C (USB TYPE-C) USB 2.0 Receptacle Connector 24 (16+8 Dummy) Position Surface Mount, Right Angle; Through Hole The USB4105-GF-A is a USB Type-C receptacle connector designed for USB 2.0 applications, commonly used in embedded systems, IoT devices, and consumer electronics. It features a 24-position (16 active + 8 dummy) contact design that supports reversible plug orientation, making it user-friendly and compliant with USB Type-C standards. This connector is a right-angle, surface-mount (SMT) device with through-hole retention tabs, providing both compact PCB integration and strong mechanical stability. Key Features USB Type-C Interface Reversible plug orientation (no wrong insertion) Standard USB Type-C receptacle Supports USB 2.0 signaling Contact Configuration 24 pins total (16 active + 8 dummy pins) Includes: Power (VBUS) Ground (GND) USB 2.0 data (D+, D−) Configuration channel (CC) Electrical Capability Supports multiple current levels (up to 5A depending on design) Rated voltage up to 48V DC Mechanical Design Right-angle (horizontal) mounting Surface-mount + through-hole hybrid Includes: Board guide Solder retention tabs (strong anchoring) Durability & Materials Shielded metal shell (EMI protection) Contact finish: Gold plating Housing: UL94 V-0 flame rated Mating cycles: ~20,000 insertions Environmental Specs Operating temperature: -40°C to +85°C RoHS compliant (lead-free) Typical Applications Microcontroller boards (ESP32, Arduino, etc.) Charging + data interface for embedded devices Power + USB communication ports Consumer electronics (gadgets, accessories) #CommonPartsLibrary #Connector #USB #DVI #USB4105 #USB-C
MMBT2222ALT3G
Bipolar (BJT) Transistor NPN 40V 600 mA 300MHz 300 mW Surface Mount SOT-23-3 (TO-236) The MMBT2222ALT3G is a NPN general-purpose bipolar junction transistor (BJT) manufactured by onsemi, designed in a SOT-23 surface-mount package. It is the SMD version of the well-known 2N2222A transistor family, used for switching and signal amplification in compact electronic circuits. It is widely used in industrial, automotive (AEC-Q101 qualified variants), and general embedded systems due to its reliability, small size, and good electrical performance. Key Features NPN General-Purpose Transistor Suitable for switching and low-power amplification Collector-Emitter Voltage (Vceo) Up to 40 V Collector Current Up to 600 mA Power Dissipation Around 225–300 mW (depending on package conditions) High Frequency Performance Transition frequency up to ~300 MHz DC Current Gain (hFE) Typically ~100 at moderate currents Low Saturation Voltage Efficient switching performance for digital circuits SOT-23 Surface-Mount Package Compact footprint for modern PCB designs Wide Temperature Range Typically -55°C to +150°C RoHS / Lead-Free Compliant Environmentally compliant manufacturing Typical Applications LED switching circuits Relay driver stages MCU signal interfacing (Arduino, ESP32, etc.) Small motor drivers General signal amplification Automotive and industrial control circuits Important Note MMBT2222ALT3G = SMD version (SOT-23) Equivalent to 2N2222A (TO-92 through-hole version) in function, but not in physical package. 2N2222A SOT-23 #commonpartslibrary #transistor #bjt
Arduino Uno R3 Shield Template ke75
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
Arduino Uno R3 Shield Template ubUh
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
Arduino Uno R3 Shield Template
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
Arduino Uno R3 Shield Template
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
Puente H López
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
Arduino Uno R3 Shield Template
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
![[Example] Arduino MKR Shield Template ce9a](https://img-cdn.flux.ai/eyJidWNrZXQiOiJncmF2aXRvbi1lbGVjdHJpYy1zeW1ib2xzIiwia2V5IjoiZG9jdW1lbnRfYXNzZXRzL2FyZHVpbm8tbWtyLXplcm8tN2YwZjE0YzQtNGE0My00ZjJkLWE1MzUtNWE2Y2RlZmY2NDYxLnBuZyIsImVkaXRzIjp7InJlc2l6ZSI6eyJ3aWR0aCI6MTI0LCJoZWlnaHQiOjEyNCwiZml0IjoiY29udGFpbiIsImJhY2tncm91bmQiOnsiciI6MCwiZyI6MCwiYiI6MCwiYWxwaGEiOjB9fX0sIm91dHB1dEZvcm1hdCI6IndlYnAifQ==)