STEP400 ISD1820 Sound Voice Board Recording Module Why Choose the Ai-Thinker CA-01

Why Choose the Ai-Thinker CA-01

Typical output is 85-95 dB

This module solves the critical challenge of controlling multiple DC motors from microcontroller GPIO pins while providing robust protection against back-EMF

4 output Connectivity Dual Gigabit Ethernet

04 mg/L - 4 mg/L Alcohol Concentration Operating Voltage 5V DC Heater Voltage 5V AC/DC Heater Power Consumption <= 750 mW Output Type Analog (A0) and Digital (D0) Digital Output TTL level with onboard comparator and adjustable potentiometer Preheat Time ~20 seconds (recommended 24-48 hours for first use calibration) Sensitivity Adjustment Onboard trimmer potentiometer for digital threshold tuning Indicator LEDs Power LED and Digital Output Trigger LED Operating Temperature -10 degreesC to 50 degreesC Operating Humidity <= 95% RH (non-condensing) Board Dimensions ~32 mm x 20 mm (compact breakout module) Mounting M3 mounting hole for secure installation Interface Pins VCC

STEP400 ISD1820 Sound Voice Board Recording Module Why Choose the Ai-Thinker CA-01STEP400 The STEP400 is a high precision stepper motor driver module designed for controlling NEMA stepper motors in industrial automation and robotics applications. Professional engineers and hobbyists use this module to achieve accurate positional control with microstepping capabilities up to 1 16th resolution. It solves the critical problem of precise motor speed regulation and direction control while minimizing vibration and heat generation in