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RFID is an acronym for “radio-frequency identification” and refers to a technology whereby digital data encoded in RFID tags or smart labels
Features
- Small and durable
- Waterproof, shockproof, anti-corrosive.
- Keyring for easy carrying.
- Not re-programmable
Specifications
- Main Chip : Fudan F08 compatible S50
- Colour : Blue,Yellow, Black, Green, Red
- Size : Approx. 40.5×32×4.2mm
- Operating Frequency : 13.56 MHz
- Communication speed : 106K Boud
- Read distance : 2.5 ~ 10cm
- Read time : 1 ~ 2ms
- Operating Temperature : -20 ℃ ~ 85 ℃
- Endurance :> 100,000 times
- Storage capacity : 8Kbit, 16 partitions, each partition with 2 group passwords
Typical applications
Enterprise / campus access cards, parking, district management,attendance systems, patrol systems, enterprise systems, access control systems, radio frequency identification field etc.
What's in the box?
1 x 13.56MHz RFID Keyfob
- Joystick Size: Approx. 95x60x100mm
- Encoder Board Size: Approx. 85x35mm
- USB Cable Length: Approx. 1.8m
- Colour: Red
We have tested this unit on Raspberry Pi using Retropie and a Windows 7 PC using MAME.
What's in the box?
1 x Encoder Board
1 x USB Cable
1 x 5 pin Cable for Joystick
1 x 5 Pin Joystick
8 x 30mm Push Buttons
2 x 24mm Push Buttons
10 x Cables for Buttons
Resources
Get Retropie on the Raspberry Pi
ModMyPi setup guide
Please note: Pic is for illustration purposes only
The 1N400x (or 1N4001 or 1N4000) series is a family of popular one-ampere general-purpose silicon rectifier diodes commonly used in AC adapters for common household appliances. Its blocking voltage varies from 50 volts (1N4001) to 1000 volts (1N4007).
Specifications
- Average forward current is 1A.
- Non-repetitive peak current is 30A.
- Reverse current is 5uA.
- RMS reverse voltage is 35V.
- Peak repetitive Reverse voltage is 50V.
- DO-41 Package.
What's in the box?
10 x diodes
Resources
Intoduction
Basics, Types, Characteristics, Applications & Packages
These boards are especially useful for preserving a prototype or experiment you just created on a solderless breadboard by soldering all the pieces in place.
- Grid : 0.1" (2.54mm)
- Thickness : 1.6mm(5pcs)
- Hole diameter : about 1mm
- Material : FR-4 (glass fiber)
- All holes are plated through
- Both sides are identical
Resources
Introduction to soldering
Video: How to solder properly
The secrets to good soldering
This Peltier works very well as long as you remove the heat from the hot side. After turning on the device, the hot side will heat quickly, the cold side will cool quickly. If you do not remove the heat from the hot side (with a heat sink or other device), the Peltier will quickly reach stasis and do nothing. We recommend using an old computer CPU heatsink or other block of metal to pull heat from the hot side. We were able to use a computer power supply and CPU heatsink to make the cold side so uncomfortably cold we could not hold our finger to it.
Note: It is imperative that a heat sink is used on the hot side of the module. Running the module without one can cause damage to this part. If it’s too hot to comfortably touch, you’re in the danger zone!
Specifications
- Model: TEC1-12715
- Colour: white
- Couples: 127
- Voltage: 12V
- Umax: 15.4V
- Imax: 15A
- Max power consumption: 231W
- Tmax: 70°C
- Qcmax △T=0(W): 137W
- Size: 40 x 40 x 3.3mm
- Weight: 50g
What's in the box?
1 x cooler plate module(40mm x 40mm)
Resources
- Learn about TECs (Tom’s Wiki)
- Learn about thermoelectric effect (Wikipedia)
UBEC's (Universal Battery Eliminator Circuit's) are simply DC to DC step down voltage regulators! This UBEC is perfect for the Raspberry Pi, as it's able to take high voltages (5.5V up to 26V), and outputs a consistent safe voltage of 5V at up to 3A nominal or 5A max! The Hobbywing 5V 3A UBEC is a switch-mode type, which results in it being much more efficient than linear type UBEC's (so your batteries will last longer!)
UBEC's are perfect for applications where you plan to use the Raspberry Pi in a circuit with high voltages such as robots where you'll be driving motors!
Due to the voltage drop caused by the Raspberry Pi, it is recommended to input a minimum of 6.5V from your Batteries to receive a stable 5V output. Anything lower than 6.5V will result in a low voltage warning on the Pi.
Please Note. The Hobbywing UBEC can be set to output either 5V or 6V using an onboard jumper select! Please DOUBLE CHECK your output voltage is correct before connecting your microcontroller or circuit!
Features
- Designed with an advanced switch mode DC-DC regulator IC.
- Battery polarity reversal protection.
- A metal shield covers almost all the electronic components, and a specially made filter is attached to the output wires to significantly reduce the electromagnetic interference.
- The working status is shown by an indicator (LED), which lights when the output is in normal range.
- Output Voltage: 5V@3A or 6V@3A (Changeable with an output-voltage select jumper)
- Continuous output current: 3 Amps
- Maximum output current: 5 Amps
- Input: 5.5V - 26V (2 - 6 cells lithium battery pack or 5 - 18 cells NiMH /NiCd battery)
- Size: 43mm*17mm*7mm (L*W*H)
- Weight: 11g
What's in the box?
1 x Hobbywing converter
Powering Raspberry Pi tutorial here: https://www.modmypi.com/blog/using-a-ubec-with-a-raspberry-pi
Standard Single Head Power Cable-1.8m-Standard computer power cable with 3-prong plug on one end and kettle plug connection on the other., OEM, No Warranty
Standard 3 prong South African Plug 16Amp fuse plug on one end and the IEC (kettle plug) connection on the other. Plugs directly into computers, certain monitors and various power supply units. Also known as Power Cord (Kettle Cord) 3 Pin South African, One IEC Connector, 1.8 Meters
• Connects a PC to a 220 volt AC power outlet
• Single CIEC standard compliant moulded PC power plug
• Can be used on standard domestic 3 pin AC power outlets
• 220 Watt rating for SLI and multi-rail power supply use
• 1.8metre Long
What's in the box?
1 x power cord with plug
This micro SD card to SD card extension cable is perfect for protecting your Raspberry Pi's micro SD card port! The flat flex cable is 45cm long, so it's perfect for mounting your SD card separately for easy access, or mounting your Raspberry Pi safely within an enclosure!
Micro SD to SD Extension Cable Features
- Micro SD Card Male to Full Size SD Card Female
- SD Card Plastic Housing Case: 51mm x 35mm x 11mm
- Flex Cable ~ 45cm
- Supports SD Card Sizes: 16GB, 32GB 64GB 128GB
- Supports SD/SDHC/SDXC Cards
- Push/Push SD Card Slot
What's in the box?
1 x Micro SD to SD Extension Cable
Hack this component to form part of your weather station.
Specifications
Sensor | 3-cup anemometer |
Measurement Description | Wind speed |
Range | 0 to 45 m/s (0 to 100 mph) |
Starting Threshold | 0.45 m/s (1.0 mph) |
Accuracy | 0.11 m/s (0.25 mph) or 1.5% |
Contact Rating | 10 mA (maximum) |
Operating Temperature Range | -50° to 70°C |
Distance Constant |
|
Cable Description | Quick-connect connector with vinyl jacketed, shielded cable |
What's in the box?
1 x Anemometer
Resources
MS wind vane as used in the Raspberry Pi foundation weather station project to measure wind direction.
Hack this component to form part of your weather station.
Specifications:
Range | 0 to 360° (352° electrical, 8° open) |
Accuracy | 1% of full scale |
Operating Voltage | 10-36 VDC |
Sensitivity | 1 m/s (2.2 mph) |
Resources:
View the project details here
And some more help here
Article specific to the wind vane only
Hack this component to form part of your weather station.
Specifications
Model | WH-SP-RG |
Usage | Household |
Display Type | Digital |
Theory | Temperature Transmitter |
Max Measuring Temperature | 49°C & Under |
Style | Standing Station |
Material | ABS |
Colour | White |
Weight | 270g |
What's in the box?
1 x Rain Gauge
Resources
View a weather project details here
Specifications
- Power: 1W
- Voltage: 5V
- Material:Monocrystalline Silicon
- Size: 60x110mm
What's in the box?
1x 5V Solar panel
Specifications
- Voltage: DC 12V
- Current: 0.08A
- Size: 40mm x 40mm x 10mm
- Colour: Black
The aluminum heat sink can reduce the risk of hardware failure due to overheating.
Better efficiency if used with a fan
Ideal for use with your Nema 17 stepper motor.
Specifications
- Material: Aluminum
- Colour: Black
- Weight: 20g
- Size: 40 x 40 x 11mm
Applications
LED, Power IC, Memory, Transistor, stepper motor etc.
This heatsink comes with Heatsink Adhesive Tape.
What's in the box?
1 x Aluminum heat sink 40 x 40 x 11mm
We have used the HC-SR04 Ultrasonic Distance Sensor many times and for many good reasons. It is pretty easy to use, it performs well, and it is very inexpensive. For collision avoidance robots or intruder detection, this sensor is usually all you’ll need.
However, using the HC-SR04 outside is a different story. It is a pretty fragile device and can easily be damaged by dirt, or even high winds. And, above all, it is not waterproof.
For these circumstances you can use this sensor, in more weathered states, even outdoors.
Specifications
- Operating voltage: DC 5V
- Total current work: 40mA
- Acoustic emission frequency: 40khz
- Maximum distance: 2m
- Blind: 25cm
- Resolution: about 0.5cm
- Angle: 70 degrees
- Working temperature: -10 ~ 70 ℃
- Storage temperature: -20 ~ 80 ℃
Wiring
5V (positive power supply)
Trig (control side) RX
Echo (the receiver) TX
GND (negative)
Product Features
- small size, easy to use;
- low voltage, low power consumption;
- high accuracy;
- strong anti-jamming;
- integrated with wire enclosed waterproof probe, suitable for wet, harsh measuring conditions.
Application
1 Horizontal distance;
2 obstacle avoidance, automatic control;
3 traffic control;
4 security, industrial control;
5 artificial intelligence, and research
What's in the box?
1 x DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor
Resources
Sensor Usage
Basic working principle
(1) using IO port TRIG trigger location, to the high level signal of at least 10us;
(2) module automatically sends 8 40KHz pulse, automatic detecting whether a signal returns;
(3) on signal return, a high level is output through the IO port ECHO, the time duration of the high level is ultrasonic from launch to return. The test distance = (high level time * speed of sound (340M/S)) /2;
Keep all kinds of cord-cables well organized and tidy in place, used to tie up speaker cables, guitar cables, TV cables, microphone mic, computer cables, and much more.
Can write directly onto the tag, help you know which cable is headed where and remember which cable is which.
Using a sharpie to Write make a perfect combination to ending cable madness! can use them in the garden, office, garage, workshop, around the house and more.
Specifications
- Material: nylon
- Colour: white
- Cable Size: 100mm x 3mm(L*W)
- Tag Size: 20mm x 13mm(L*W)
- Quantity: 50pcs
Features
- Nylon cable tie label
- Made from high quality nylon 66 material, UL recognized
- Durable,acid-resistance, anti-rust,anti-aging,insulating
- Unique marking tag design, enable you to mark the different cables when connected, easy to recognize.
- Widely used in bundled cables for TV, computer, appliances, lighting, electrical, electronic toys and other products lines
What's in the box?
50 x Nylon Zip Cable Tie Labels
Features
- 8 way operation.
- Mountable in control panels.
- Easy to operate with high sensitivity.
- Use it to DIY your own Arcade gaming machine.
- Top Ball Diameter: Approx. 35mm
- Total Size: Approx. 95x60x100mm
1 x Joystick
Cables not included
Resources
- Learn about RetroPie
- Compatible with Zero Delay Arcade USB Encoder & Wire Set (Not included)
- Compatible like buttons
The 1/2" 2 way, 90 Degree, 2 port 12 V DC NPT Normally Closed Electric Solenoid Valve converts electrical signals to pneumatic functions as part of a larger system that allows users to interlock, isolate, and connect individual units of a larger operation.
DC 12V Electric Solenoid Valve 1/2 Inch Hose Magnetic Water Air Inlet Flow Switch
Specification:
Material | Metal Plastic |
Color | As per picture |
Voltage | DC12V |
Rated Power | 5W |
Pressure | 0.02- 0.8Mpa |
Interface Modes | 1/2'' Hose |
Working Time | 5 hours at once (Max) |
Insulation Class | E |
Fluid Temperature | 0-90°C |
Size | L*W*H/75*60*45mm/2.95*2.36*1.77'' |
Inner diameter | 14mm/0.55'' |
External diameter of thread | 20mm/0.78'' |
1 x Electric Solenoid Valve
Please note:
The actual valve size in the unit is smaller than the port size as you will find with most taps.
Specifications
- A single module can drive a 8x8 dot matrix common cathode
- Working voltage: 5V
- Module size: 12.8 x 3.2 x 1.3 cm (L*W*H)
- With 64 fixing screw holes, hole diameter: 3mm
- Module with input and output interfaces, support for cascading multiple modules
What's in the box?
1 x MAX7219 Dot Matrix Module
1 x 5pin jumper Cable
Resources
Wiring
1. The left side of the module is the input port, and the right is the output port.
2. Control of a single module, the input port only need to receive CPU.
3. The more a module cascade and input end of the first module is connected with the CPU and input end of the input end of the output end is connected to the second module, output terminal of the second module connected with the three modules, and so on.
For example: 51 SCM
VCC→5V
GND→GND
DIN→P2.2
CS →P2.1
CLK→P2.0
https://max7219.readthedocs.io/en/0.2.3/
Clock example
Python Library
Basic 1 digit seven segment display can show numbers from 0-9 and a few characters. Consisting of seven LEDs (hence its name) arranged in a rectangular fashion. Each of the seven LEDs is called a segment because when illuminated the segment forms part of a numerical digit to be displayed.
Features
- Model: 5611BH Common Anode
- Size: 0.56 inch
- Colour: red
What's in the box?
1 x Red 7 Segment 0.56 Inch 1 Bit Common Anode LED Digital Tube
Resources
A few code examples
https://circuitdigest.com/microcontroller-projects/raspberry-pi-7-segment-display-tutorial
https://raspi.tv/2015/how-to-drive-a-7-segment-display-directly-on-raspberry-pi-in-python