PinoutHub The DRV8825 is a high-performance microstepping motor driver module built around the Texas Instruments DRV8825 IC that controls bipolar stepper motors using just two signals — STEP and DIR — from a microcontroller. By handling all phase sequencing, PWM current regulation, and microstepping waveform generation internally, it drives a stepper motor smoothly and precisely without … Read more
The A4988 is a complete microstepping motor driver module built around the Allegro A4988 DMOS microstepping driver IC with built-in translator. By accepting just two control signals — STEP and DIR — from a microcontroller, it independently handles all the phase sequencing, current regulation, and microstepping waveform generation required to drive a bipolar stepper motor … Read more
The L293D motor driver module is a compact breakout board built around the L293D quad push-pull motor driver IC that controls the speed and direction of two DC motors or one bipolar stepper motor simultaneously. By accepting standard TTL logic level signals from a microcontroller and switching motor power independently through two internal H-bridge circuits, … Read more
The L298N is a high-voltage, high-current dual full-bridge motor driver IC manufactured by STMicroelectronics that controls the speed and direction of two DC motors or one bipolar stepper motor simultaneously. By accepting standard TTL logic level signals from a microcontroller and switching high-current motor power independently, it acts as the bridge between low-power control signals … Read more
The AS608 is a standalone optical fingerprint sensor module that captures, processes, stores, and matches fingerprints entirely onboard without requiring any external processing. By combining an optical imaging sensor, a DSP processor, a fingerprint alignment algorithm, and onboard Flash memory in a single compact module, it handles all biometric operations independently and communicates results to … Read more
The R307 is a standalone optical fingerprint sensor module that captures, processes, stores, and matches fingerprints entirely onboard without requiring any external processing. By combining an optical imaging sensor, a high-speed DSP processor, a fingerprint alignment algorithm, and high-capacity Flash memory in a single compact module, it handles all biometric operations independently and communicates results … Read more
The IR obstacle sensor module is a short-range proximity detection module that detects the presence of objects by emitting infrared light and sensing the reflected signal. When no obstacle is present, the emitted infrared light dissipates into the environment without returning. When an object enters the detection zone, it reflects the infrared light back to … Read more
The MAX30102 is a high-sensitivity integrated pulse oximeter and heart rate biosensor that combines a red LED, an infrared LED, a photodetector, optical elements, and low-noise analog front-end electronics with ambient light rejection into a single compact package. By measuring the absorption of red and infrared light passing through living tissue, it can determine both … Read more
The Pulse Sensor (SEN-11574) is a plug-and-play optical heart rate sensor that detects the pulse of blood flow through living tissue by shining a green LED onto the skin and measuring the reflected light with a photodiode. As the heart beats, blood volume in the capillaries changes rhythmically, causing the intensity of reflected light to … Read more
The LDR sensor module is a light detection module that senses ambient light intensity by measuring the resistance change of a photoresistor — a component whose resistance drops as light intensity increases. This resistance change is converted into a continuously varying analog voltage via a voltage-divider network, while a separate comparator circuit converts the same … Read more