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This is a small board with a load switch that allows a Raspberry Pi to automatically temperature control a fan (not included) via GPIO3.
It's an affordable, compact and light way to add smart temperature control to your own Raspberry Pi enclosure or project, and can be used to toggle power for other devices using up to 1A as well.
Compatible with:
What's in the box?
1 x Fan Controller
Resources
How to use
The Fan controller should be connected to the first 6 pins on the header where it uses 5V, GND and GPIO 3 (see images).
To automatically cool your Raspberry Pi when it starts to warm up, add the following to your /boot/config.txt and restart the Pi. You can change the value to make the fan turn on at different temperatures too:
dtoverlay=gpio-fan,gpiopin=3,temp=80000
Note: Raspberry Pi and Fan not included
This Reflective IR Sensor is a simple plastic casing with two elements - an IR LED and an IR phototransistor. You can control the IR LED and turn it on to bounce IR off objects to determine their reflectivity. White & light colored stuff will bounce the light, so you can detect it.
Specifications
| Colour | Black blue |
| Material | Plastic iron |
| Specification | Detecting range: 0.591" (15mm); Detecting method: Reflective; Collector Emitter Voltage: 70V; Collector Current: 100mA; Forward Current: 60mA; Output type: Phototransistor; Working temperature: -25~85'C |
| Features | Compact construction, sense the presence of an object by using the reflective IR beam from the object |
| Application | Perfect for line tracking robot car DIY project |
What's in the box?
5 x TCRT5000L Reflective switch
Resources
How to use TCRT5000 switches
This RTC module is specifically designed for the Raspberry Pi. It communicates with Raspberry Pi through the I2C bus and includes a Maxim DS1307 and CR1220 button cell (not included) on the board to keep a real-time clock for a long time after the Pi has powered down
Simply plug this tiny module into the GPIO header on the Raspberry Pi and away you go!
Specifications
- RTC module: DS1307
- Battery model: CR1220 button cell
- Operating Voltage: 3V to 5V
- I2C address: 0x68
- Clock precision: ±2ppm (0~40°C)
- Unit information: Second, Minute, Date, Week, Month and Year
- Two calendar clock
- Operating temperature: -10°C至+85°C
- Compatible with Raspberry Pi B/A+/B+/2B/3B/4B
- Interface: 2*5p 2.54mm
What's in the box?
1 x RTC Module
You will also need a CR1220 battery
Resources
- Joystick Size: Approx. 95x60x100mm
- Encoder Board Size: Approx. 85x35mm
- USB Cable Length: Approx. 1.8m
- Colour: one set Red and one set Black
We have tested this unit on Raspberry Pi using Retropie and a Windows 7 PC using MAME.
What's in the box?
This kit contains two sets of the following:
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
ThePiHut setup guide
These are suitable for DIY projects and the Raspberry Pi pcb as the outside diameter is only 2.5mm that fits in the Pi mounting holes.
Nylon standoffs are essential components in electronic projects, particularly in applications where circuit boards need to be securely mounted within an enclosure or chassis.
Here's how they are typically used:
Board Mounting: Nylon standoffs are used to elevate and secure printed circuit boards (PCBs) within an electronic enclosure or chassis. They provide a stable platform for the PCB, preventing it from coming into contact with conductive surfaces that could cause short circuits.
Mechanical Support: Standoffs act as spacers between the PCB and the mounting surface, ensuring proper ventilation and preventing heat buildup. This is crucial for maintaining the integrity of sensitive electronic components.
Isolation: Nylon standoffs help to electrically isolate the PCB from the chassis or enclosure. This isolation is essential for preventing electrical interference, reducing the risk of noise and signal degradation, and enhancing overall circuit performance.
Easy Access: Standoffs facilitate easy access to the PCB for maintenance, repairs, or upgrades. By raising the board above the mounting surface, technicians can easily reach components and make necessary adjustments without disassembling the entire system.
Vibration Dampening: In applications where vibration is a concern, nylon standoffs can help dampen vibrations transmitted to the PCB, thereby reducing the risk of component failure or solder joint fatigue over time.
Overall, nylon standoffs play a crucial role in ensuring the structural integrity, electrical isolation, and proper functioning of electronic systems. Their versatility and reliability make them indispensable components in a wide range of electronic projects.
What's in the box?
1 x Nylon Standoff M2.5 x 5mm
Want to adjust the angle of your HDMI connection? This handy adapter makes it easy!
Specifications
- HDMI
- 1080p
- Male to female
- black
- 90 degrees angle
What's in the box?
1 x hdmi adapter
Want to adjust the angle of your HDMI connection? This handy adapter makes it easy!
Specifications
- HDMI
- 1080p
- Male to female
- black
- 90 degrees angle
What's in the box?
1 x hdmi adapter
Want to adjust the angle of your USB connection? This handy adapter makes it easy!
Specifications
- USB 3.0
- Male to female
- black
- 90 degrees angle
What's in the box?
1 x USB 3.0 adapter
Want to adjust the angle of your USB connection? This handy adapter makes it easy!
Specifications
- USB 3.0
- Male to female
- black
- 90 degrees angle
What's in the box?
1 x USB 3.0 adapter
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 Cathode
- Size: 0.56 inch
- Colour: red
What's in the box?
1 x Red 7 Segment 0.56 Inch 1 Bit Common Cathode 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
- Quick and economical.
- Straight through configuration.
- This coupler allows two ethernet cables with RJ45 connectors to be connected together so that the signal will pass straight through.
- It is a cheap and simple way to extend network cables and is ideal for moving networked computers without uprooting existing cables.
- Single Size: Approx.34x21x16mm
What's in the box?
1 x RJ45 Straight Through Ethernet LAN Cable coupler
Cables are not included
Proximity switch, also known as non-contact proximity switch, is the ideal electronic switch sensor. Used for detecting metal in proximity. It does not require any contact or pressure. It will accurately reflect the position of a moving mechanism. The proximity switch is easy to install, adjustable, and suitable for harsh environments.
Specifications
- Model : LJ12A3-4-Z/BX
- Operating Voltage : DC 6-36V
- Output Type : NPN
- Output Status : Normally Open
- Detection object : metal objects
- Detection distance : 4 mm
- Output Current : 300 mA
- Response Frequency : 0.5KH
- Working temperature : Temperature range -30 ° to 60 °
- Dimensions : 12 mm screw diameter
- Cable length : about 115 cm
- Material : Metal and plastic
What's in the box?
1 x LJ12A3-4-Z/BX NPN Sensor Detection Switch
Resources
Brown - Live
Blue - Ground
Black - Signal
LCD Digital Multimeter AC/DC 750/1000V Handheld multimeter for voltmeter, ammeter Ohm tester meter with probes.
Specifications
- DC voltage: 200m - 2000m - 20 - 200 - 500V
- AC Voltege: 200 - 500V
- DC current: 2000u - 20m - 200m - 10A
- Resistance: 200 - 2000 - 20k - 200k - 2000k ohm
- Temperature: -20 ~ 1000??/span>
- Diode test: Yes
- On-off and buzzer function: Yes
- Max. display: 1999
- Battery: 9V 6F22 battery ( Not included )
What's in the box ?
1 x Digital Multimeter
2 x Probe Cables
2 x batteries
Rocker Switches house a button for operation that can be pressed on either end like a seesaw to connect or disconnect an electrical circuit. They are often used as ON/OFF switches on the main power supplies for electronic devices.
Features
- Rating: <= 36V
- Mounting hole: 14mm
- Poles: SPST
- Terminal: 2-Pin(ON-OFF)
- Colour: black
What's in the box?
1 x Mini round black rocker switch
Resources
Introduction to Buttons and Switches
Types of buttons and switches
High Quality Limit Switch for CNC machines or 3D Printers. These End Switch Modules are spares to replace broken or faulty limit switches on all three axes.
What's in the box?
1 x Limit Switch
1 x 3 core cable
The AS608 Optical Fingerprint Scanner is a highly versatile, all-in-one biometric module favored by makers for its built-in processing power. Unlike simpler sensors, the AS608 handles the "heavy lifting" (image rendering, feature finding, and searching) on its own onboard DSP chip, allowing it to work seamlessly with even low-power microcontrollers like an Arduino Uno.
Key Features
- All-in-One Processing: Integrated optical sensor and high-speed DSP handle enrollment and matching internally.
- Onboard Storage: Can store and manage between 162 to 255 fingerprint templates (depending on the specific firmware version) in its internal flash memory.
- Two-Phase Security: Supports both 1:1 Matching (verifying a specific user) and 1:N Searching (identifying a user from the entire database).
- Visual Feedback: Features a built-in LED (usually green or red) that lights up during the scanning process.
- Flexible Interface: Uses a standard TTL Serial (UART) interface, making it "plug-and-play" with Raspberry Pi, Arduino, ESP32, and PCs.
Best Use Cases
- Biometric Door Locks: Perfect for home automation or safe boxes.
- Attendance Systems: Creating a "clock-in" station for offices or classrooms.
- User Identity for DIY Projects: Restricting access to a Raspberry Pi terminal or an arcade machine
| Parameter | Specification |
| Supply Voltage | 3.6V to 6.0V DC (Standard 5V recommended) |
| Operating Current | <120mA (Peak 150mA) |
| Interface | UART (TTL Logic Level) |
| Resolution | 500 DPI |
| Imaging Time | < 1.0 Seconds |
| False Acceptance Rate (FAR) | < 0.001% |
| False Rejection Rate (FRR) | < 1.0% |
| Window Dimensions | 14mm x 18mm |
| Module Dimensions | ~56mm x 20mm x 21mm |
What's in the box?
1 x fingerprint scanner with connecting wires
Resources
Specifications
- Colour: Black
- Buzzer Type: Piezoelectric
- Sound Pressure Level 85 dB
- Rate Voltage: 12V DC
- Operating Voltage: 3 - 24V
- Max Current Rating 11mA
- Frequency 3900±500Hz
- Drive Method: Drive Circuit Built in
- Mounting Holes
What's in the box?
1 x Piezoelectric Buzzer
Resources
- Python library
- Using a Buzzer With a Raspberry Pi
This is a Mini Real-Time Clock module, it's design for the Raspberry Pi, but it can also be used with an Arduino.
Simply plug this tiny module into the GPIO header on the Raspberry Pi and away you go!
Specifications
- DS3231 RTC IC
- Self-adjust 3.3V and 5V
- Size: 14mm x 14mm x 12 mm
Features
- Smaller
- Work in 3.3V and 5V
- Supported Raspberry Pi and Arduino
What's in the box?
1 x RTC Module
1 x Battery
Resources
Specifications
- Each Relay has LED indication when ON
- SPDT Relays with terminal block outputs.
- Relay Coil voltage: 5 VDC
- Power Requirement: 5 VDC
- 10A 250V AC / 10A 30V DC
What's in the box?
1 x Two channel 5V DC Relay Module
Resources
Interfacing with a relay : https://tutorials-raspberrypi.com/raspberry-pi-control-relay-switch-via-gpio/
Specifications
- Wide input range, high precision voltage.
- Overload protection
- Short circuit protection
- Over temperature protection
- Input:100-240V AC 50/60Hz
- Output: DC 9V 1000mA
- Plug: EU Plug
- Dimension: 70mm x 80mm x 28mm
- Cable length: about 100cm
- DC Plug Dimension: 5.5mm x 2.5mm
- Colour: Black
- EU type
What's in the box?
1 x 9V 1A AC to DC Power Supply
You will also need a euro plug adapter