2x CD4056BE 7 Segment BCD Decoder Integrated CD 4056 DIP

The module has two outputs: analog A0 and digital D0.
digital output D0 - signal 0 or 1 appears depending on the configuration of threshold.
The threshold is fixed with the potentiometer. Characteristic: - Operating voltage: 3.3V -5 V - Sensitivity adjustable by potentiometer
- Dual output mode: analog and digital
- Red LED - power indicator
- Green LED - digital switching output indicator
- Measurements PCB: 3 x 1.5 cm
- Sensor measurements: 5.4 x 3.9 cm

Definition of the Hall effect: When a current passes through a bar of semiconductor (or conductive) material, and if an induction magnetic field B is applied perpendicularly to the direction of current flow, a voltage, called the Hall voltage, proportional to the magnetic field, and the current appears on the side faces of the bar.
This voltage is proportional to the speed of movement of the charge carriers, It is considerably higher in semiconductor materials than in metal conductors. Magnetic Sensor Characteristic: - Input Voltage: 3.8-30VDC - Output current: 40mA
High output current capacity -40 mA maximum absolute
Quad-Hall design virtually eliminates static mechanical effects
Magnetic compensated temperature - Digital current sinking output

Ever needed a microphone for your project. This tiny little board will fulfill all your needs - it is not only mobile, but as well easy to connect. A low power, efficient, omnidirectional AMP401 microphone has an analog output. It works great for near and long range uses and is particularly suitable for a mobile projects given its extremely low energy consumption. You can use it in a range of applications - we can see it used in smartphones, cameras or electronic nannies.

L7812CV Voltage Regulator 12V 1.5A TO-220 7812 Arduino L7812CV features:
-Type Output: Fixed
-Voltage Output: 12V
-Manufacturer: ST Microelectronics
-Output current: 1.5A
-Max input voltage: 35V
-Input input min.: 5V
-Operational temperature: 0ºC to + 125ºC
-Encapsulated: TO-220
-Polarity: Positive

LM35 Temperature Sensor LM35DZ TO92 features:
- The output is linear and each degree Celsius equals 10 mV
- Power supply from 4 to 30 Vdc
- Connection through analog input
- Temperature range from 0ºC to 100ºC
- Linearity +10 mV / ºC
- Quantity: 1 unit

Batch of 600 Units 1/4W Resistors Various values Ohm Ω features:
- Each lot contains
(30 x 20 units):
10Ω, 22Ω, 47Ω, 100Ω, 150Ω, 200Ω, 220Ω, 270Ω, 330Ω, 470Ω, 510Ω, 680Ω, 1KΩ, 2KΩ, 2.2KΩ, 3.3KΩ, 4.7KΩ, 5.1KΩ, 6.8KΩ, 10KΩ, 20KΩ, 47KΩ, 51KΩ, 68KΩ, 100KΩ , 220KΩ, 300KΩ, 470KΩ, 680KΩ, 1M
- Tolerance: ± 5%
- Power: 0.25W

Ideal for projects with ARDUINO you can use it with PIC, AVR, STM32.
Provides seconds, minutes, time and date, calendar up to the year 2100.
DS1302 Real Time Clock RTC Module AVR ARM PIC features:
- Chip: DS1302
- Power supply: 2V-5V
- Operating current: <2mA
- Dimensions: 44 x23 x 8mm
- Battery not included in this sale
- Connect the RTC to your Arduino
VCC -> Arduino + 3.3V
GND -> Arduino Gnd
CLK -> (SCLK_PIN)
DAT -> (IO_PIN)
RST -> (CE_PIN)