DC 30V Analog Panel Voltmeter 0 to 30V

Yellow 3D-pen for ABS / PLA filaments features:
This 3D pen is suitable for 1.75m ABS or PLA filaments.
It includes an LCD screen that allows you to read the temperature, speed and filament.
It also comes with button controls to control the extrusion speed.
You can use this powerful 3D pen to draw, draw or trace objects on the paper. Yellow 3D-pen for ABS / PLA filaments features:
- Input voltage: 12V,
- Current consumption: 2A,
- Nozzle diameter: 0.7mm - Heating temperature: 160-230 degrees adjustable,
- Pen color: yellow,
- Random color filaments,
- Includes PLA filament and 100-240 VAC / 50 Hz power - 12VDC / 2A,
- Recommended for adults and children 8 years and older.

Magnet Round Disc Neodymium Ferrite 10x4mm features:
- External magnet dimensions: 10x4mm
- Magnet shape: round
- Magnet material: neodymium

DC 15V Analog Panel Voltmeter 0 to 15V features:
- DC 15V 0-15V analog voltage meter
- Type: Analog voltage meter
- Range of scale: DC 0-15V
- Accuracy: Class 2.5
- Complete with screws for simple DIY installation

IR Remote Control + IR Infrared Receiver VS1838 features:
- The test distance is about 5-8 meters, but practical application depends on environmental factors (such as diaphragm, glass , obstructions or other material blockage) - The CHQ1838 / HX1838 receiver receives the 38kHz signal
- Vcc supply: 3.3V-5V
- IN digital output to connect to the port Arduino I / O
- Remote measurements 85x 40x 5mm
- Includes battery
Useful links for Arduino / Raspberry programming and projects with Arduino boards / Raspberry:
Send / Receive information via IR
- Wiring of the IR Remote control + Infrared IR Receiver VS1838 with the UNO module
- Light a 3mm red LED by Infrared

Magnet Cylindrical Disc Neodymium Ferrite 2x4mm features:
- External magnet dimensions: 2x4mm
- Magnet shape: cylindrical
- Magnet material: neodymium

This module equipped with a PCF8591 converter has a low current power supply and includes 8 bit CMOS data acquisition devices.
Your converter has four analog inputs, one analog output and one I2C serial bus interface.
It is supplied in the voltage range 2.5V-6V, analog voltage between the negative potential VSS and positive VDD. The control and data signals are transmitted on the two-wire I2C bi-directional bus to the transformed series.
The intensity of the ambient light can be converted into a digital signal thanks to its integrated photoresistor.
It allows access to eight PCF8591 converters on the same I2C bus without additional equipment. Converter Module AD-DA PCF8591 - Analog Voltage 2.5V-6V features:
- Supply voltage (between VSS and VDD): 2.5-6VDC

Sound detection module for Arduino projects, smart cars.
Sound Detection Sensor Module features:
- Adjustable High Sensitivity Acoustic Sensor
- Chip LM393
- Red LED indicator integrated
- Frequency range between 30 and 15000 Hz
- Power 4 ~ 6V
- Measures 32x16x10mm

The PCF8591 is a low-power 8-bit single-chip, single-chip, 8-bit data acquisition device with four analog inputs, an analog output, and an I2C serial bus interface.
Three address legs A0, A1 and A2 are used to program the hardware address, allowing the use of up to eight devices connected to the I2C bus without additional hardware.
Address, control and data to and from the device are transferred in series through the two-way bidirectional I2C bus. Analogue to Digital Converter PCF8591T features:
- Main chip: PCF85911
- Operating voltage supply: 2.5 - 6 V
- Low standby current
- Serial input / output through the I2C bus
- 3 hardware address pins A0, A1, A2
- Sampling speed given by the I2C bus speed