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This is a small buzzer for the LilyPad system. Use 2 I/O pins on the LilyPad main board and create different noises based on the different frequency of I/O toggling. Loud enough to hear inside a pocket but not obtrusively loud.

Please note: This is an inductive buzzer meaning that is will act as a short to ground if you are not actively driving it. We recommend you put both I/O pins to low (0V) when the buzzer is not used. Also, it's come to our attention that washing these buzzers will damage them. Until we've figured out a solution to this, avoid washing any portion of your project that contains one of these buzzers.

LilyPad is a wearable e-textile technology developed by Leah Buechley and cooperatively designed by Leah and SparkFun. Each LilyPad was creatively designed to have large connecting pads to allow them to be sewn into clothing. Various input, output, power, and sensor boards are available.

• 20mm outer diameter
• Thin 0.8mm PCB

What's in the box?

1 x LilyPad Buzzer module

Resources

• Output Voltage:    3.3 V
• Output Type:    Fixed
• Package Type:    TO-220
• Maximum Output Current:    1.3A
• Mounting Type:    Through Hole
• Maximum Input Voltage:    15 V
• Pin Count:    3
• Number of Outputs:    1
• Polarity:    Positive
• Quiescent Current:    5mA
• Accuracy:    ±1%
• Minimum Operating Temperature:    0 °C
• Maximum Operating Temperature:    150 °C
• Height:    9.15mm
• Width:    4.6mm
• Line Regulation:    6 mV
• Length:    10.4mm
• Dimensions:    10.4 x 4.6 x 9.15mm
• Load Regulation:    10 mV

•     2004 204 20X4 Character LCD Display Module Blue Backlight.
•     Blue backlight
•     Fully assembled and tested Serial LCD 20x4 Module
•     Display Format: 20 Characters x 4 lines
•     Supply voltage: 5V
•     The module can be easily interfaced with a MCU
•     The module is a low-power consumption character LCD Module with a built-in controller
•     Size: approx. 98mm x 60mm x 12mm

• current detection
• over current protection (can be preset from 0.5A to 35.0A)

• Operating voltage: DC 5V
• Current detection range: DC +-35A, AC 25A
• Linearity: K=60mV/A
• Limit current range: 0.5A to 35A(for on/off value output)
• Over current signal indicator LED
• Sampling current conversion analog voltage signal output and it can connect ADC; TTL level signal output and it can connect MCU IO port control
• Board size 37mm x 31mm
• Working temperature: 25 to 85C

Interface

1. When the current flows in from positive direction: V0=Vcc*0.5+la*K, V0=(2.5+0.06)V=2.56V
2. When the current flows in from negative direction: V0=Vcc*0.5-la*K, V0=(2.5-0.06)V=2.44V
3. If it is an AC signal: V0=Vcc*0.5+la*K, V0=(2.5+0.06)V=2.56V

1. Make sure the current flows in from the positive direction. Adjust to the desired current warning level.
2. LED will be on when current is below the setting and DOUT will be low.
3. When the detected current is higher than your setting, the LED will turn off and the DOUT pin will go high.

• Wide Supply Voltage range : 2.4V - 5.5V
• Lightning Sensing: 40 km Range with accuracy of 1km in 14 steps
• Detects both cloud-to-ground and cloud-to-cloud flashes
• Embedded ‘man made’ disturbance rejection algorithm
• Programmable Detection Levels,Lightning detection thresholds are programmable (outdoor vs indoor, for example)
• Distance to storm estimation
• "Disturber" (false event) rejection algorithm
• Indoor and Outdoor Settings
• SPI and I2C Interfaces
• Qwiic Enabled

• Material: Aluminium alloy.
  
• Size: Roof:50mm x 60mm.Foot:80mm x 50mm.
  
• Height: 43mm.
  
• Weight: 96g
  
• Compatible with: Designed specially for single phase solid state relay.
  
• Colour: Silver

• Calibration programmable registers can directly read its unit of measure is the ampere current, and power in watts per read.
• For as many as 128 sampling averaging, in order to realize filter in noise environment.
• The I2C interface has a timeout, not only can avoid the bus lock, but also can provide high-speed mode, meet the communication requirements of up to 3.4 MHz.
• All features are support software programmable INA219.
• Using single power supply, the working voltage between 3.0 to 5.5 V. 

Turn your ATX PC power supply into a handy test bench power supply.

• -12V
• 12V
• 5V
• 3.3V

Each output channel has a replaceable 5A fuse and corresponding ground connection with binding post easy to connect
Provide quick access to the typical voltages needed including 3.3V, 5V, 12V and -12V.
The power indicator and power switch easy to control ideal to DIY low voltage power supply for developing physical computing projects (embedded systems)


Specifications

• Product name : ATX power supply board 
• Model : XH - M229 
• Compatible with port: ATX (compatible with partial BTX type) 
• The PIN number: 24 pin 
• Switch : Yes 
• Number of sets of output : Four sets of different voltages 
• Size:48mm x 128mm x 30 mm

What's in the box?

1 x Power Chassis

This small adapter allows you to convert an existing micro USB power supply (like the official Raspberry Pi universal power supply for Raspberry Pi 1, 2 and 3) into a USB-C power supply.

Note that when a micro USB power supply is used, the maximum power that can be delivered to the Raspberry Pi 4 will be 12.5W. This means that less power will be available to devices connected to the USB 2.0 and USB 3.0 ports on the Raspberry Pi 4 than when using the new Raspberry Pi 15.3W USB-C power supply.

Specifications

• Female USB-B to Male USB-C adapter
• Compatible with Raspberry Pi 4 Model B (all variants)
• Carry on using your USB micro-B devices

What's in the box?

1 x USB micro-B to USB-C adapter

• Material: Plastic
• Indoor temperature °C display.
• It comes with a mounting clips which allows it to be panel mounted
• Temperature range: -50 ~ 70 Degrees.
• Usage temperature: -10 ~ 50 Degrees.
• Usage humidity:  5% ~ 80%
• Accuracy:  /-01 Degrees.
• Distinguishing temperature: 0.1 Degrees.
• Power: 2 x DC1.5V LR44 button batteries (Not included)
• Cable length:  0.8M.
• Size:  48 x 28 x 15(mm)
• Colour:  Black

• Material: Plastic and Metal
• Colour: White
• Length: 2.3cm
• Connector A: Micro USB Male
• Connector B: Type C Female

Latest infrared wireless remote control kit consists of Mini Slim 38KHz IR remote control and infrared receiver modules, Mini Slim infrared remote control with 17 function keys, working distances of up to 8 meters, ideal for a variety of devices. IR receiver module can receive standard 38KHz modulation remote control signal, through programming, you can achieve remote control signal decoding operation, which can produce a variety of remote control robots and interactive projects.
 
Features

   

• Transmission Distance: 8m above (specific and surroundings, the receiver sensitivity and other factors)
• Effective angle: 60 degrees
• Sticking Material: 0.125mmPET, the effective life of 20,000 times.
• Stable quality, cost-effective
• Quiescent current 3-5uA, Dynamic current 3-5mA.

What's in the box?

1 x wireless remote
1 x receiver

 Resources

#include <IRremote.h>

int RECV_PIN = 11;

IRrecv irrecv(RECV_PIN);

decode_results results;

void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); // Start the receiver
}

void loop() {
  if (irrecv.decode(&results)) {
    Serial.println(results.value, HEX);
    irrecv.resume(); // Receive the next value
  }
}

• SPDT 3 Terminal ON-ON 2 - Position Latching Toggle Switch.
• Each switch is assembled with two hex nuts, a flat and a locking washer.
• Easy installation, fits into any 6mm hole.
• Stated Electrical Spec: 3A 250VAC or 6A 125VAC, but we recommend using it at 2A at 24V