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0.5X barlow lens KAILIWEI
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The MQ2 analog gas sensor is used in gas leak detection equipment. This sensor is suitable for detecting LPG, butane, propane, methane, alcohol, hydrogen, and smoke. It has high sensitivity and a fast response time; the sensitivity can be adjusted using a potentiometer.
MODULE compatible Arduino to control 4 motors DC or 2 stepper motors and have 2 connections for servomotors. This shield uses pins D3 to D12 for operation (direction, speed, etc).
The module is based on two L293D drivers and can control up to 4 DC motors with an intensity of 0.6 A per output (1.2 A at peak).
A 5v relay is an automatic switch that is commonly used in an automatic control circuit and to control a high-current using a low-current signal. The input voltage of the relay signal ranges from 0 to 5V.
Shaft support diameter 12 mm – SK12
The shaft can be tightened with an M5 screw provided.
- ESP32-WROVER is a powerful, generic WiFi-BT-BLE MCU module that targets a wide variety of applications,ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streamingand MP3 decoding. The ESP32-WROVER has two versions: The ESP32-WROVER IPEX Module uses an IPEX antenna while the ESP32-WROVER PCB module has a PCB antenna.
The MQ3 analog gas sensor is suitable for detecting alcohol; this sensor can be used in a breathalyzer.
It has high sensitivity to alcohol and low sensitivity to gasoline.
The sensitivity can be adjusted using a potentiometer.
Shaft support diameter 08 mm – SK08
The shaft can be tightened with an M5 screw provided.
Shaft support diameter 10 mm – SK10
The shaft can be tightened with an M5 screw provided.
