Rocker switch KCD4 Momentary 15A 250V Double (ON)-OFF-(ON)

Transmitter and receiver kit for radio control and data transmission, compatible with Arduino. 433MHz RF Wireless Receiver + Transmitter features:

Specifications of the emitter module: - Power supply: 3V ~ 12V
- Working intensity: max = 40mA (at 12V), min = 9mA (at 3V)
- AM ASK / OOK modulation
- SAW filter
- Working frequency: 315MHz-433.92MHz
- Transmission power: 25mW (315MHz at 12V)
- Range: 20 to 200 meters (different voltages can give different results)
- Transfer speed: 4 kB / S
- Dimensions: 19x 19x 7mm Receiver module specifications: - Power supply: 5.0VDC + 0.5V
- Work intensity: 5.5mA (at 5.0VDC)
- Work frequency: 315MHz-433.92MHz - Receiver sensitivity: -100dBm

Module for Arduino, Raspberry Pi 2 and Pi 3, B and B +.
The display module 4-digit LED with TM1637.
The unit can be controlled with just two DIO and CLK control lines.
TM1637 4-Digit Digital Display Module features:

- 3V-5V supply voltage
- Current consumption 250 mA
- 7-segment display 4 digits common anode
- Digit size: 0.36 inches
- Dimensions: 42x24x11mm

Ideal to control the speed of DC motors.
Characteristic:
- Input voltage: 12-40VDC,
- Max continuous output current: 8A (peak current 10A),
- Control power: 0.01- 400W,
- Dimensions: 60x75x28mm,
- PWM frequency: 13kHz,
- Static current: 0.02 A (Standby),
- Adjustable duty cycle: 10% -100% ,
- It integrates a L7812CV TO-220 regulator,
- It incorporates a 10A fuse to protect the power circuit.
Note that the voltage applied to the motor will be the supply voltage applied to the circuit.

Connectors BLS01 Female/Female 1 Pin RoHS Single Row pack 20pcs features:
- Number of connections: 1 in a single row
- Type: female / female
- RoHS standard

- Bluetooth 4.0 AT-09 BLE Master / Slave module with 6-pin connection base
- This module is very similar to HM-10 module
- Bluetooth protocol: Bluetooth V4.0 BLE specification
- Ultra-low power consumption, in 90uA standby mode
Wireless Module AT-09 Bluetooth 4.0 CC2541 IOS BLE features:

- Chipset based on CC2541
- Bluetooth Class 2
- Industrial level Bluetooth module SPP
- 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)

- It has an Atmega328P chip running at 16Mhz with factory-loaded bootloader
- The Uno R3 module has all the Arduino Uno R3 connectors and is compatible with all Arduino shields
Characteristic:
- ATmega328P 16MHz chip with external quartz crystal
- Microprocessor: ATMega328P
- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Input voltage (limits): 6-20V
- Clock speed: 16 MHz
- Digital I / O pins: 14 (6 with PWM)
- Analog input pins: 6
- DC current for Pin I / O: 20 mA
- Flash32 KB of which 0.5 KB are used by the bootloader - AtMega328P
- SRAM 2 KB - AtMega328P
- EEPROM 1 KB - AtMega328P
- Communication: USB female Type B

Voltmeter Ammeter 100V 50A Digital DC Red Blue features:
- Supply voltage: 4.5V to 30V
- Voltage measurement range: 0V to 100V (± 1%)
- Min voltage resolution: 0.1V
- Current measurement range: 0A to 50A (± 1%)
- Min current resolution: 0.1A
- Operating current: 5mA to 15mA
- Display: Red LED color (Voltage) and Blue LED color (Intensity)
- Includes reverse polarity protection
- Measurement refresh time: 500ms
- Screen dimensions: 48 x 29 mm
- Recessed hole: 45.5 x 26.5 mm
- Depth: 21 mm
- Cable length: 150 mm
- Operating temperature: - 10ºC to 65ºC
- No battery needed
- Dual panel with voltmeter and digital ammeter Useful links for Arduino />

Jack connectors 2.1mm inside and 5.5mm outside to power devices such as LED strips, CCTV (Cameras), Arduino. Female DC Power Connector Jack 2.1x5.5mm features:
- Ideal for connecting without welding
- It has two screws in the tip for positive and negative cable screwdriver