Power supply 9V 2A 18W USB-C

UVM-30A sensor module suitable for any location and requires stable and precise measurement of UV light.
Ideal for Arduino projects.
Black UV sensor module UVM-30 for Arduino features:
- Operating voltage: 3-5 VDC,
- Voltage input: DC 0-1 VDC,
- 3-pin connector:
- GND (-): ground connection,
- Out: sensor output signal,
- VCC (+): sensor supply,
- Measurement accuracy: +/- 1UV index,
- Working current: 0.06mA (standard) / 0.1mA (max.),
- Response wavelength: 200-370 nm,
- Working temperature: -20ºC - + 85ºC,
- PCB size: 28x12mm.

The ESP32-CAM is a camera module with the ESP32-S chip. It features an OV2640 camera, several GPIOs to connect peripherals, and microSD card slot.

The Arduino turbidity sensor SEN0189  detects water quality by measuring turbidity levels. It can detect suspended particles in water by measuring the light transmittance and the scattering coefficient, which changes with the amount of total suspended solids (TTS) in the water.

A CNC expansion board kit and 4 stepsticks A4988 for 3D printer. See each component in the product description for details.

This module is a timed switch that allows you to program several types of applications such as lights. Time Switch Module 12V NE555 Monostable Switch Delayed features:

Ethernet Patchcord UTP 5e 2m features:

Bluetooth protocol: Bluetooth V4.0 BLE specification.
Ultra-low power consumption, in 60uA standby mode. Half open and iPhone can reach 100 meters extreme communication distance. Arduino Bluetooth Wireless Module 4.0 CC2541 Android IOS HM-10 BLE features:
- Chipset based on CC2541 TI
- Bluetooth Class 2
- Industrial level Bluetooth SPP module
- Flash 256Kb
- Integrated chip antenna
- Power supply: + 3.3 VDC 50 mA
- Working temperature: -5 C to + 60 C
- Operating frequency: 2.4 GHz ISM Band
- Modulation method: GFSK (Gaussian Frequency Shift keying)
- 40 channels, 2MHz, 3 transmission channels Fixed, 37 automatic frequency adaptation skipping data channels;

USB DC 5V Bluetooth Audio features:
- You can connect it with your smartphone
- Power: DC 5V micro USB
- Speaker: 4 ~ 8 Ohm - Audio Jack: 3.5mm
- SD card: support MP3 / WMA / WAV / FLAC format
- The transmission distance could be up to 10m
- Size: 50 x 40 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

NodeMcu module based on ESP8266 controller and programming in Lua language.
NodeMcu is equipped with 10 GPIO, PWM, I2C, 1-wire and ADC.
ESP8266-12E is an improved version of ESP8266-12.
It works as a standard WiFi 802.11 b / g / n 2.4 GHz.
USB communication - the CH340 chip. Characteristics of ESP 12E:
- Supply voltage: 3.3V (LOGICAL LEVELS: 3.3V)
- Supported protocols: 802.11 b / g / n
- Network support: 2.4 GHz
- Band: 2400 (MHz)
- Wi-Fi Direct (P2p), Soft Access Point
- TCP Stack / Integrated IP
- PLLs, Regulators and Integrated Power Management Units
- Output Power: 0.15 (W); + 19.5dBm in 802.11b mode