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The Arduino Motor Shield is based on the L298, which is a dual full-bridge driver designed to drive inductive loads such as relays, solenoids, DC and stepping motors. It lets you drive two DC motors with your Arduino board, controlling the speed and direction of each one independently. You can also measure the motor current absorption of each motor, among other features. -
Product description: Description: stm32f103c8t6 Minimum System Board, Beginner Level Board! Also, keil arm compiler, jlink, serial download, upgrade from 51 to arm, original chip, stable and high quality, easy to use, exclusive design and development, technical support well! Purchase. Features: stm32f103c8t6 Minimum System Learning Development Board Power supply voltage: 1. USB - 5 V 2.5 Volt front row power supply 3.3 V power supply option Typical application: led flashing light program (support various other programs) Main resources: 1. USB function 2. user led 3. power led 4. reset Maximum features: 1. compact design, easy to carry 2. full gold leaf in the front row 3. switch for imported material, etc. Dimension: 4.5 cm * 6.2 cm -
MQ-9 gas sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor could be used to detect different gases contains CO and combustible gases, it is with low cost and suitable for different application. Character * Good sensitivity to CO/Combustible gas * High sensitivity to Methane, Propane and CO * Long life and low cost * Simple drive circuit Application * Domestic gas leakage detector * Industrial gas detector * Portable gas detector

