TDA2030A 1X18W Audio Amplifier

This module is a three-way switch (COM, NO and NC) that uses the intensity of the ambient light to directly control the output load. Its adjustment potentiometer allows you to change the sensitivity and set the threshold for starting the relay. The relay is energized when it is darker than the threshold.
The optical isolation relay effectively protects the chip and ensures better performance.
This module is used for light detection, brightness detection , control of lamps and automatic equipment. Characteristic: - Channels: 1
- Supply voltage: 12VDC
- Output load capacity: 250V 10A AC / 30V 10A DC
- Relay activation current: & gt; 100mA
- Insulation: Yes
- Indicator LED: Green and Red
- PCB size: 5x2.6 cm / 1.96x1.02 "

Bone Conduction Transducer + MAX98306 Stereo Amplifier features:
- Transducer Bone conduction 8Ohm Speaker 1W + MAX98306 Stereo Amplifier
- Class D 3.7W stereo audio amplifier - MAX98306

Transceiver based on the SI4432 Silicon Labs chip
Industry standard model
Capacitive components manufactured by Murata with 10ppm high precision glass
Outdoors - a distance of up to 1.5 km 1.5km radius SI4432 433MHz RF Telemetry features:
- Supply voltage: 1.8 ~ 3.6VDC
(Note: a voltage higher than 3.6 V will cause permanent damage to the module)
- Communication level: 0.7VDC ~ 3.6V (VCC refers to the module supply voltage)
- Working frequency: 425M ~ 525MHz (via software setting, the module uses 30M glass)
- Measured distance: 1500m (clear and open, maximum power, height 1.5m, air speed 1k)
- Transmission power: up to 20dBm (about 100mW)
- Air rate: 0.123k ~ 256Kbps (software adjustable, low airspeed recommended)

SONOFF DUALR3 is a WiFi based 2-gang switch that can independently connect and control two connected devices or lights - this simply means that 1 SONOFF DUALR3 control switch is equivalent to 2 Sonoff basic switches!

2 Channel Relay Module 5V 10A for Arduino features:
- 5V relay module with 2 optocoupled channels
- This module can be controlled directly by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL)
- Channels: 2 (independent protected with Optocouplers)
- Supply voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Insulation: Yes
- LED indicator: For each channel
- Dimensions: 40x 50mm

5V water pump with USB connector  for fountain, aquarium, pool, water tank, humidifier, green wall decoration, candle

decoration, solar water circulation,etc.

The perfect solution for not worrying about the length required on your RGB LED strip, now with a WiFi driver compatible with the eWeLink APP and voice assistants like Google Home or Alexa. Also includes a 24-key IR remote control.

You will be able to turn on and control your strip lights anytime and anywhere, and control it with just a click on your smart phone or tablet via APP eWeLink, or voice assistants, without time and distance limitations.

This module is a small source of energy, this board was designed to be as small and as indiscreet as possible.
Putting a battery type AAA and operating the power switch, will have a supply of 5 V to power a lilypad circuit.
Use up to 200ma, it is protected against short circuits. This card has AAA battery clips but can use a 1.2V to 5V input, the module increases the voltage up to 5V.
Lithium polymer batteries are an alternative to rechargeable batteries.
Lilypad is a wearable E-textile technology developed to have large connection pads to attach to clothing. Lilypad Power Supply 5V Step Up with AAA Batteries features:
- Type of batteries connectable: AAA
- Input voltage (of the batteries): from 1.5V to 5V
- Output voltage: 5V

The module with high quality mobile phone vibration motor, the vibration effect is obvious and the vibration intensity of the motor can be controlled by PWM.

It can be used for Arduino and Raspberry projects. It is a DC motor.

TinyS3 is the latest in Unexpected Maker's popular range of "Tiny" development boards. It's packed with amazing features and peripherals, wireless connectivity, and stacks of Flash and PSRAM, all in the same tiny package size as the original TinyPICO!