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Description:

LM393 Sound Detection Sensor Module for controller detects whether the sound has exceeded a threshold value. The sound is detected via a microphone and fed into an LM393 op-amp. The sound level setpoint is set via an onboard potentiometer.
Can be used for Acoustic control light; give sound and light alarm working with Photosensitive sensor
Note: The Maximum induction distance is 0.5M

• Main Chip: LM393, Electret condenser microphone
• Working Voltage: DC 4-6V
• Signal output indication
• Single channel signal output
• The output effective signal is low level
• When there is sound,output low level and the signal lights

What's in the box?:

1 x LM393 Sound Detection Sensor

Resources:

Find help with this sensor at https://www.instructables.com/id/Sound-Sensor-Raspberry-Pi/

Description:

RC522 chip:
MF RC522 is applied to the highly integrated read and write 13.56MHz contactless communication card chip, NXP launched by the company for the "table" application of a low-voltage, low-cost, small size of the non-contact card chip to read and write, smart meters and portable handheld devices developed better choice. The MF RC522 use of advanced modulation and demodulation concept completely integrated in all types of 13.56MHz passive contactless communication methods and protocols. 14443A compatible transponder signals. The digital part of to handle the ISO14443A frames and error detection. In addition, support rapid CRYPTO1 encryption algorithm, terminology validation MIFARE products. MFRC522 support MIFARE series of high-speed non-contact communication, two-way data transmission rate up to 424kbit/s. As new members of the 13.56MHz reader card series of highly integrated chip family, MF RC522 MF RC500 MF RC530 There are a lot of similarities, but also have many of the characteristics and differences. Communication between it and the host SPI mode helps to reduce the connection narrow PCB board volume, reduce costs.

RFID module:
The MF522-AN module uses the the original Philips MFRC522 chip design circuit card reader, easy to use, low cost, and applies to the user equipment development, the reader and the development of advanced applications, the need for the user RF card terminal design/production. This module can be directly loaded into the various reader molds. Utilizes a voltage of 3.3V, through the SPI interface simple few lines directly with any user CPU motherboard connected communication can ensure that the module is stable and reliable work, distance card reader

Specifications:

Electrical parameters:
Operating current :13-26mA/DC 3.3V
Idle current :10-13mA/DC 3.3V
Sleep current: <80uA
Peak current: <30mA
Operating Frequency: 13.56MHz
Supported card types: mifare1 S50, mifare1 S70 MIFARE Ultralight, mifare Pro, MIFARE DESFire
Product physical characteristics: size: 40mm×60mm
Environmental Operating temperature: -20 to 80°C
Environmental Storage Temperature: -40 to 85°C
Relative humidity: relative humidity 5%-95%

Module interfaces SPI Parameter:
Data transfer rate: maximum 10Mbit/s

Package includes:

1 x RFID-RC522 module
1 x Standard S50 blank card (Non-contact IC card)
1 x S50 special-shaped card (key ring shape)
1 x Straight and 1 x angled male to male header(Soldering required)

Resources:

Our setup guide

Description:

• The ULN2803APG / AFWG Series are high−voltage,high−current darlington drivers comprised of eight NPN darlington pairs.
• All units feature integral clamp diodes for switching inductive loads.
• Applications include relays, hammer, solenoid, unipolar steppers, lamp and display (LED) drivers etc.
• Output current (single output): 500 mA (max)
• High sustaining voltage output: 50 V (min)
• Output clamp diodes
• Inputs compatible with various types of logic.
• Package Type−APG : DIP−18pin
  

What's in the box?:

1 x 8 Channel Darlington IC

Downloads

ULN2803 Data Sheet

Tutorials

How to Control a Stepper Motor using your Raspberry Pi & the ULN2803 Driver Chip

Description:

In microelectronics, a dual in-line package (DIP or DIL), is an electronic component package with a rectangular housing and two parallel rows of electrical connecting pins. The package may be through-hole mounted to a printed circuit board (PCB) or inserted in a socket.

Using a socket instead of soldering the IC directly into your project allows for easy removal and replacement in case of damage.

Specifications:

Color: black
Number of pins: 16 pins
Pin length: 2.9mm
Pitch: 2.54mm
Contact termination through hole
Contact type dual wipe contact


Package includes:

1 x Circular hole 16 pin IC socket

Incorporates 9-axis motion sensor ICM20948 and baroceptor LPS22HB