The Interactive Database for
Pinouts & Hardware Diagrams.
Interactive diagrams, pin functions and links to technical datasheets for microcontrollers, dev boards, and ICs at a glance.
All Boards, Chips & Connectors
Development platforms, microcontrollers, ICs and standard interfaces
CD4017B Decade Counter with 10 Decoded Outputs
5-stage Johnson counter with 10 decoded outputs. Advances on rising clock edge. 3–18V supply. Used in LED chasers, sequencers, and frequency dividers.
CD4066B Quad Bilateral Analog Switch
Four independent bidirectional analog switches. Each switch passes analog or digital signals in both directions when the control input is HIGH. 3–18V supply, Ron typically 80Ω.
CH340G USB to Serial UART Bridge Controller
USB serial converter, UART, SOIC-16
DHT11 Humidity and Temperature Sensor Module
3.3V to 5.5V, temperature and humidity module, DHT11
DHT22 / AM2302 Digital Humidity and Temperature Sensor
Capacitive humidity and temperature sensor with a single-wire proprietary digital interface (NOT I2C). 3.3–5.5V supply. Accuracy: ±2% RH, ±0.5°C. Requires a 10kΩ pull-up on the DATA line.
DRV8825 Stepper Motor Controller (StepStick)
High-current microstepping bipolar stepper driver with built-in indexing translator, supporting up to 2.5A peak per coil, 45V motor supply, and 1/32 microstepping.
DS1307 64 x 8 Serial Real-Time Clock (I2C)
64 x 8, Serial, I2C Real-time clock, 4.5V to 5.5V VCC, 0°C to +70°C, DIP-8
DS3231 Extremely Accurate I2C Integrated RTC/TCXO/Crystal
Extremely Accurate I2C-Integrated RTC/TCXO/Crystal SOIC-16
FT232RL USB to Serial UART Interface IC
USB to Serial Interface, SSOP-28
HC-SR04 Ultrasonic Distance Sensor
Standard 4-pin ultrasonic distance measuring sensor providing 2 cm to 400 cm non-contact measurement with 3 mm ranging accuracy.
INA219 High-Side Current & Power Sensor Module
Bidirectional current and power monitor with I2C-compatible interface, capable of measuring high-side voltages up to +26V and currents up to 3.2A with 0.1 ohm shunt.
IRF540N 100V Single N-Channel HEXFET Power MOSFET
Advanced HEXFET Power MOSFET utilizing advanced processing techniques to achieve extremely low on-resistance (44 mOhm) and fast switching speeds up to 100V and 33A continuous drain current.
IRLZ44N 55V Logic-Level N-Channel HEXFET Power MOSFET
5th Generation HEXFET logic-level gate drive power MOSFET fully specified at 4V and 5V gate drive for direct microcontroller driving (Arduino, ESP32, Raspberry Pi) with 47A rating.
L293 Quadruple Half-H Drivers
Quadruple Half-H motor driver IC providing four independently controlled half-bridge outputs rated 600mA each; no internal flyback diodes (add external diodes for inductive loads).
L298N Dual Full-Bridge Driver
Dual full-bridge motor driver in Multiwatt-15 package, rated for up to 46V and 2A continuous per bridge (4A peak). No internal flyback diodes, add external diodes for inductive loads.
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Where does the pinout data and technical specification come from?
The pinout data and technical specifications are based on official manufacturer datasheets as well as publicly available documentation and community resources. As PinoutDatabase is an independent project maintained by me as an individual, I strive for high accuracy, though inadvertent mistakes can still happen.
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