MQ-9 Carbon Monoxide Sensor Module

The optical module sensor (reflective) with comparator LM393, which detects obstacles with high precision.
The ideal obstacle detection detector for the installation of smart robots.
TCRT5000 - reflective optical sensor that has a compact construction where the light emitter and receiver are placed in the same direction to detect the presence of a object using infrared reflection on the object.
The working wavelength is 950nm.
The transmitter is infrared LED and the phototransistor receiver.
By using LM393 comparator the module has a binary output (D0) that is at level 1 (object is detected).
The sensor allows the detection of an object at a distance of up to 12 mm.

The multifunctional relay control module, FRM01, is designed for customers with different synchronization and control needs.
The FRM01 is controlled by the STM8S003F3P6 microcontroller and has 18 different functions.
Each function can be customized to meet customer needs in a variety of time and power control applications.
The FRM01 is equipped with a high-quality power relay, a high-power voltage transistor, red and blue LED indicators, an LED display on a double-sided PCB board.
The output of the board is driven by a high quality power relay capable of controlling the AC and DC loads. Timer Relay Module FRM01 features:
- Operating voltage: 12 VDC
- 4 buttons: SET, SWI, NUM +, NUM-
- Operating temperature: -20 °C - + 60 °C

MQ-6 Gas Methane Sensor Module for Arduino features:
- Main chip: MQ-6 methane sensor and comparator LM393
- Working voltage: 5V
- Current: 150mA
- Digital output: TTL 0/1
- Analog output: analog voltage sensing value
- Quick response features:
- Detection concentration:
- 200ppm- 10000ppm LPG, LNG
- Adjustable sensitivity with the potentiometer
- Size: 32mm x 20mmx 18mm

Voltage Sensor Module 0.02445V ~ 25V.
When the module is powered by 5V voltage detection It does not exceed 25V, and when the module is powered with 3.3V the voltage detection does not exceed 16.5V.
100% Compatible with Arduino.
DC voltage sensor 0-25v for Arduino features:

- Input voltage: 0-25 VDC
- Voltage detection range: 0.02445V-25 VDC
- Analog voltage resolution: 0.00489 V
- DC input connector: cathode terminal connected to VCC, GND negative pole
- Output interface: "+" then 5 / 3.3V, "-" then GND, "s" then the Arduino AD pins

Descent module.
Use a multimeter to check the output voltage and adjust the potentiometer.
Control of tension.
LM2596 DC Voltmeter Converter 3A Step Down Adjustable Power features:
- Input voltage: 4.5-38V
- Output voltage: 1.25-36.5V
- Current output: 2A (max 3A with heat sink)
- Operating temperature: -40 to + 85 ºC
- Operating frequency: 150KHz
- Efficiency conversion: up to 92%
- Load Regulation: +/- 0.5%
- Voltage Regulation: +/- 2.5%
- Protection over temperature: the output switches off automatically
- Size: 62mm x 38mm x 15mm
Principal functions:
- Step-down converter with overcurrent protection
- Voltmeter up to 40V, remember to set the input voltage to 4.5V

3-axis analog accelerometer module based on the MMA7361 sensor. The built-in sensor has a low demand for electricity. The measuring range of the sensor can be changed between two ranges ± 1.5 g and ± 6 g. The selection is made using a digital input or welded bridges.
MMA7361 Triple Axis Analog Accelerometr features:
MMA7361 3-axis analog accelerometer Supply voltage: 3.3 - 5 V (built-in RT9161 chip) Measuring range selected from the IO line of the microcontroller or via bridges Comparators with hysteresis for CMOS / TTL 3.3 V, 5 V inputs Pin pitch: 2.54 mm Dimensions: 28 x 17 mm.        Helpful links - MMA7361 datasheet

Mobile Charger 5V 3A 3100mA  with connector USB-C. This power supply has an additional USB-A connector.

It is not possible to reverse the polarity by mistake.
JST PHR-2 Connector Male 2 PIN 2mm features:
Manufacturer JST Connector series: PH Connector: female connector Connector class: male Connector type: conduit-board Contactor raster: 2mm Number of pins: 2 Electrical mounting: THT Voltage Working: 100V Working current: 2A Working temperature: -25 ... 85 ° C Spatial orientation: vertical technical data sheet PH series