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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!
Pro Mini ATMEGA328P 5V/16MHz for arduino (Pro Mini ATMEGA328P)
It's blue! It's thin! It's the Arduino Pro Mini! SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader. Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Uno R3. It's a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (5V), lack of connectors, and USB off board.
We really wanted to minimize the cost of an Arduino. In order to accomplish this we used all SMD components, made it two layer, etc. This board connects directly to the FTDI Basic Breakout board and supports auto-reset. The Arduino Pro Mini also works with the FTDI cable but the FTDI cable does not bring out the DTR pin so the auto-reset feature will not work. There is a voltage regulator on board so it can accept voltage up to 12VDC. If you're supplying unregulated power to the board, be sure to connect to the “RAW” pin and not VCC.
Features:
Getting Started
Getting started with Arduino products
We really wanted to minimize the cost of an Arduino. In order to accomplish this we used all SMD components, made it two layer, etc. This board connects directly to the FTDI Basic Breakout board and supports auto-reset. The Arduino Pro Mini also works with the FTDI cable but the FTDI cable does not bring out the DTR pin so the auto-reset feature will not work. There is a voltage regulator on board so it can accept voltage up to 12VDC. If you're supplying unregulated power to the board, be sure to connect to the “RAW” pin and not VCC.
Features:
- ATmega328 running at 16MHz with external resonator (0.5% tolerance)
- 0.8mm Thin PCB
- USB connection off board
- Supports auto-reset
- 5V regulator
- Max 150mA output
- Over current protected
- Weighs less than 2 grams!
- DC input 5V up to 12V
- On board Power and Status LEDs
- Analog Pins: 8
- Digital I/Os: 14
Getting Started
Getting started with Arduino products
Raspberry Pi Pico Maker kit 2 power supply 5V 2A (Pico maker kit 2 white)
This Starter Kit is based around the Raspberry Pi Pico development board which features the Raspberry Pi RP2040 microcontroller chip. 
Whats in the box:
- The Raspberry Pi Pico microcontroller
- USB A male to USB micro B male 1.5m cable
- 2.54mm Pitch Single Row Pin Header 40-PIN - Black
- 5.1V 2.5A Official Power Supply white for Pico
Add wifi to Pico using Cricket
https://www.thingsonedge.com/post/pico-cricket-blynk-phone-alerts
Eight channel 5V DC Relay Module (8 channel relay)
Description:
This is an eight channel 5V DC relay module with active low. It can be controlled by variety of microcontrollers such as Arduino, Raspberry Pi, PIC, DSP, AVR or ARM etc.
- Has the ability to control eight separate appliances or pieces of equipment
- Eight on-board optoisolators enable direct interfacing to microcontrollers
- Eight red LED status lights on-board show relay activity
- Widely used in PLC control or smart home control
- 4 x M3 mounting holes for easy fixing via standoffs
Specifications:
- 15-20mA drive current needed per channel
- Relay coil maximum operating voltage: 5V
- Relay coil maximum current: 89.3mA
- Relay contact maximum: AC250V at 10A or DC30V at 10A
- No. of relays/channels: 8
- Item size: 134 x 55 x 20mm
- Item weight: 116g
Contents:
- 1 x 8 Channel Relay Module
Resources:
Warning
Exercise proper caution when connecting mains driven equipment or appliances to relay module as lethal current will be present.
Four channel 5V DC Relay Module (4 channel relay)
Description:
Use this relay board with your Arduino, Raspberry Pi or your custom micro-controller projects!
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
Contents:
- 1 x Four channel 5V DC Relay Module
Resources:
Piezo Transducer - Mini 5V Buzzer (4000Hz) (buzzer pcb 5V)
Description:
If you want to add beeps, tones or alerts to your Raspberry Pi project, you require a Piezo Buzzer! This mini transducer is small but loud, and can be driven with a 1-20V peak-to-peak square wave. To use, connect one pin to ground (either one) and the other pin to a square wave out from a timer or microcontroller. For the loudest tones, stay around 4 KHz. For extra loudness, you can connect both pins to a microcontroller and swap which pin is high or low ('differential drive') for double the volume.
This one plops perfectly into a breadboard and has short legs, so can also easily be mounted on a PCB!
Please Note. This item is externally driven, e.g. requires a microcontroller to produce a tone.
Specifications:
This Mini Piezo Transducer Features:
- Mini 5V Piezo Transducer
- PCB & Breadboard Mountable
- Low Power Consumption
- Sealed Base
- Wave Solderable and Washable
Technical Specification:
- Rated Voltage (Vp-p Square Wave) 5Vp-p
- Operating Voltage 1 to 20Vp-p
- Rated Current at Rated Voltage 1mA
- Sound Output at 4000Hz at 10cm, at Rated Voltage ≥80dB
- Resonant Frequency 4000 ±500Hz
- Operating Temperature -20 to +70°C
- Storage Temperature -30 to +80°C
- External Diameter: 13.8mm
- External Height: 6.8mm
- Capacitance: 0.013µF
- Capacitance Max: 16.9nF
- Weight: 1g
- Model No.: ABT-402-RC
Contents:
- 1 x Mini 5V Buzzer
Resources:
- Using a Buzzer with a Raspberry Pi
Two Channel 5V DC Relay Module (2 channel relay)
Description:
This is a two channel 5V DC relay module with active low. It can be controlled by variety of microcontrollers such as Arduino, Raspberry Pi, PIC, DSP, AVR or ARM etc.
- Has the ability to control two separate appliances or pieces of equipment
- Two on-board optoisolators enable direct interfacing to microcontrollers.
- Two red LED status lights on-board show relay activity.
- Widely used in PLC control or smart home control
- 4 x M3 mounting holes for easy fixing via standoffs
Specifications:
- 15-20mA drive current needed per channel
- Relay coil maximum operating voltage: 5V
- Relay coil maximum current: 89.3mA
- Relay contact maximum: AC250V at 10A or DC30V at 10A
- No. of relays/channels: 2
- Item size: 57 x 55 x 20mm
- Item weight: 57g
Contents:
- 1 x 2 Channel Relay Module
Resources:
Warning
Exercise proper caution when connecting mains driven equipment or appliances to relay module as lethal current will be present.
Stepper Motor with ULN2003 Driver (DC 5V) (Stepper and pcb driver)
Dimensions: 1.38 in x 1.18 in x 0.39 in (3.5 cm x 3.0 cm x 1.0 cm)
Weight: 1.45 oz (41 g)
How to control a ULN2003 stepper motor with Raspberry Pi
The maximum speed for a 28byj-48 stepper motor is roughly 10-15 rpm at 5 V.
the 28BYJ-48 motor runs in full step mode, each step corresponds to a rotation of 11.25°. That means there are 32 steps per revolution (360°/11.25° = 32). In addition, the motor has a 1/64 reduction gear set.
The power consumption of the motor is around 240mA.
The ULN2003 is one of the most common motor driver ICs, consisting of an array of 7 Darlington transistor pairs, each pair is capable of driving loads of up to 500mA and 50V. Four out of seven pairs are used on this board.
The board has four LEDs that show activity on the four control input lines (to indicate stepping state). They provide a nice visual when stepping.
The board also comes with an ON/OFF jumper to isolate power to the stepper Motor.
- High quality stepper motor with ULN2003 driver
- Suitable for microcontroller development
- Voltage: DC 5V
- Diameter: 28mm
- Step Angle: 5.625 x 1/64
- Reduction Ratio: 1/64
- Suitable for microcontroller development
- Voltage: DC 5V
- Diameter: 28mm
- Step Angle: 5.625 x 1/64
- Reduction Ratio: 1/64
Weight: 1.45 oz (41 g)
How to control a ULN2003 stepper motor with Raspberry Pi
The maximum speed for a 28byj-48 stepper motor is roughly 10-15 rpm at 5 V.
the 28BYJ-48 motor runs in full step mode, each step corresponds to a rotation of 11.25°. That means there are 32 steps per revolution (360°/11.25° = 32). In addition, the motor has a 1/64 reduction gear set.
The power consumption of the motor is around 240mA.
The ULN2003 is one of the most common motor driver ICs, consisting of an array of 7 Darlington transistor pairs, each pair is capable of driving loads of up to 500mA and 50V. Four out of seven pairs are used on this board.
The board has four LEDs that show activity on the four control input lines (to indicate stepping state). They provide a nice visual when stepping.
The board also comes with an ON/OFF jumper to isolate power to the stepper Motor.
8-Channel 3.3V to 5V Voltage Converter Module for Raspberry Pi - Blue (8ch blue convert logic)
Raspberry Pi and jumper cables are not included.
Highlights:
- Mutual conversion between 3V and 5V, It's convenient for PI connected to external 5V sensors or modules
- Supports total of 8 channels
- Range of voltage converted: 1.8V~6VDC
How to Use:
In the case of translating between 3.3V and 5V system:
VCCA connects to 3.3V power supply
VCCB connects to 5V power supply
GND connects to power negative pole respectively, the two power supply should be common-grounded with each other
When Ax has 3.3V input, Bx will get 5V output
When Bx has 5V input, Ax will get 3.3V output
NO direction control required
Highlights:
- Mutual conversion between 3V and 5V, It's convenient for PI connected to external 5V sensors or modules
- Supports total of 8 channels
- Range of voltage converted: 1.8V~6VDC
How to Use:
In the case of translating between 3.3V and 5V system:
VCCA connects to 3.3V power supply
VCCB connects to 5V power supply
GND connects to power negative pole respectively, the two power supply should be common-grounded with each other
When Ax has 3.3V input, Bx will get 5V output
When Bx has 5V input, Ax will get 3.3V output
NO direction control required
L7805CV TO220 5V Voltage Regulator (L7805 Volt Reg)
Resources:
Understanding How a Voltage Regulator Works
- Integrated circuit
- Voltage regulator
- +5V
- Non Insulated
Resources:
Understanding How a Voltage Regulator Works
Hobbywing 5V 3A UBEC Step-Down Converter (Hobbywing power converter)
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 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: [email protected] or [email protected] (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
Check out our tutorial here: https://www.modmypi.com/blog/using-a-ubec-with-a-raspberry-pi
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!
5V DC Fan 30x30x7mm (5V DC Fan 30x30x7mm)
Description:
Package Includes:
1 x Cooling Fan
- Dimensions: 30x30x7mm
- Connector: Dupont 2Pin
- Rated Voltage: DC 5V
- Rated Current: 0.1±10%Amp
- Rated Speed: 11000±10%RPM
- Air flow:3.25CFM
- Noise: 26±10%dBA
- Bearing Type: Sleeve
- Cable Lenght: 13cm
- Weight: 7g
Package Includes:
1 x Cooling Fan
DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor (waterproof ultrasonic)
Specifications:
Operating voltage: DC 5V
Total current work: 40mA
Acoustic emission frequency: 40khz
Maximumdistance: 4.5m
Blind: 25cm
Wiring:
+ 5V (positive power supply)
Trig (control side) RX
Echo (the receiver) TX
GND (negative)
Resolution: about 0.5cm
Angle: 70 degrees
Working temperature: -10 ~ 70 ℃
Storage temperature: -20 ~ 80 ℃
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
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;
Usage
Package Includes:
1 x DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor
Operating voltage: DC 5V
Total current work: 40mA
Acoustic emission frequency: 40khz
Maximumdistance: 4.5m
Blind: 25cm
Wiring:
+ 5V (positive power supply)
Trig (control side) RX
Echo (the receiver) TX
GND (negative)
Resolution: about 0.5cm
Angle: 70 degrees
Working temperature: -10 ~ 70 ℃
Storage temperature: -20 ~ 80 ℃
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
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;
Usage
Package Includes:
1 x DC 5V Waterproof Ultrasonic Module Distance Measuring Transducer Sensor
5V TCRT5000 Infrared Line Tracking Sensor Module (line track sensor)
Features:
Size: 3.5 x 1cm
Power supply: 5V DC
Detector distance: 10mm
Build-in Tcrt5000 Sensor NSOR
Applicable to a variety of platforms including Arduino / AVR / ARM /PIC
Package includes:
1 x Tracking Sensor Module
Build A Line-following robot
Size: 3.5 x 1cm
Power supply: 5V DC
Detector distance: 10mm
Build-in Tcrt5000 Sensor NSOR
Applicable to a variety of platforms including Arduino / AVR / ARM /PIC
Package includes:
1 x Tracking Sensor Module
Build A Line-following robot
5V DC Fan 25x25x10mm (5V DC Fan 25x25x10mm)
Dimensions: 25x25x10mm
Suitable Voltage: 5V ~ 7V DC
Rotating speed(RPM ): 13000RPM~14500RPM (25*25*10MM)
Double ball bearings, Japan NMB bearings
Package Includes:
1 x Cooling Fan
Suitable Voltage: 5V ~ 7V DC
Rotating speed(RPM ): 13000RPM~14500RPM (25*25*10MM)
Double ball bearings, Japan NMB bearings
Package Includes:
1 x Cooling Fan
Dual USB 9V/12V/24V/36V to 5V Converter DC-DC 3A Step Down Power Module (5V dual usb converter)
Specifications:
Input: 9V-36V
Output: 5V / 3A (MAX)
Efficiency: 92% (MAX)
Switching frequency: 150KHZ
Operating temperature: -40 ℃ - + 85 ℃
Load capacity: Maximum output 3A in total on both ports
Application: mobile power, mobile phones, flat-panel USB5V powered devices
Package includes:
1 x DC Power Module
Specifications:
Input: 9V-36V
Output: 5V / 3A (MAX)
Efficiency: 92% (MAX)
Switching frequency: 150KHZ
Operating temperature: -40 ℃ - + 85 ℃
Load capacity: Maximum output 3A in total on both ports
Application: mobile power, mobile phones, flat-panel USB5V powered devices
Package includes:
1 x DC Power Module
5V Monocrystalline 1W Mini Solar Panel (5V 1W solar panel)
Specifications:
Package Includes:
1x 5V Solar panel
Build Your DIY Powered Models,Solar Display and Solar Toys
Power: 1W
Voltage: 5V
Material:Monocrystalline Silicon
Size: 60x110mm
Package Includes:
1x 5V Solar panel
Ideal for your dc electronic projects.
5.5V 4F H Style Super Capacitor 24.6 x 6mm (5.5V 4F super cap coin)
Description:
Type: 5.5V 4.0F super capacitor H Style
Withstand voltage: 5.5V
Capacitance: 4F
Temperature range: -40 ℃ ~ +70 ℃
Long life cycles: 1200000 times charge and discharge
Low ESR fast charge only few seconds
Large current discharge
Green pollution-free
Wider practicability for solar, wind and other hobby projects
Safe and easy to use
No maintenance
Size: 24.6 x 6mm
Package includes:
1 x 5.5V 4F capacitor
Resources:
Theory
Introduction
Types
Type: 5.5V 4.0F super capacitor H Style
Withstand voltage: 5.5V
Capacitance: 4F
Temperature range: -40 ℃ ~ +70 ℃
Long life cycles: 1200000 times charge and discharge
Low ESR fast charge only few seconds
Large current discharge
Green pollution-free
Wider practicability for solar, wind and other hobby projects
Safe and easy to use
No maintenance
Size: 24.6 x 6mm
Package includes:
1 x 5.5V 4F capacitor
Resources:
Theory
Introduction
Types
5V/12V Male to Female Barrel Power Extension Cable with Switch 5.5x2.1mm 26cm (barrel switch extension)
Add a physical switch to your device or project.
This inline manual switch goes between the power source and the device to add a convenient and reliable point of power control
5.5mm x 2.1mm barrel
26cm cable
Add a physical switch to your device or project.
This inline manual switch goes between the power source and the device to add a convenient and reliable point of power control
5.5mm x 2.1mm barrel
26cm cable
Add a physical switch to your device or project.
LED Traffic Light Building Block Board 5V (traffic light 5V Arduino)
Features:
Size: 56mm x 21mm x 11mm
Fixing hole: 3mm
Pitch: 15mm
Color: red yellow green
LED: 5mm x 3
Brightness: Normal brightness
Voltage: 5V
Input: Digital level
Interface: common cathode, red, yellow and green separate control
Platform: Arduino, microcontroller
Package includes:
1 x LED Traffic Light Module
Read the Docs
Read the Docs
5V 1 Channel Level Trigger Optocoupler Relay Module (single relay red board)
Description:
The module uses a quality relay with a normally open interface
Using SMD optocoupler isolation, driving ability, stable performance
The module can be set high or low with a jumper setting trigger
Fault-tolerant design, even if the control line is broken, the relay will not operate
A power indicator (green) and a relay status indicator (red)
Specification:
Maximum load: AC 250V/10A, DC 30V/10A
Trigger current: 5mA
Working voltage: 5V
Module size: 50mm x 26mm x 18.5mm (L x W x H)
Four mounting bolt holes, diameter 3.1mm
Module interface:
DC+: positive power supply (VCC)
DC-: negative power supply (GND)
IN: can be high or low level to control the relay
Relay outputs:
NO: normally open
COM: Common Interface
NC: normally closed
High and low level trigger options:
It is low level trigger when jumper connects to LOW pin
It is high level trigger when jumper connects to HIGH pin
Package includes:
1 x 1 Channel H/L level trigger optocoupler relay module
Interfacing with a relay
The module uses a quality relay with a normally open interface
Using SMD optocoupler isolation, driving ability, stable performance
The module can be set high or low with a jumper setting trigger
Fault-tolerant design, even if the control line is broken, the relay will not operate
A power indicator (green) and a relay status indicator (red)
Specification:
Maximum load: AC 250V/10A, DC 30V/10A
Trigger current: 5mA
Working voltage: 5V
Module size: 50mm x 26mm x 18.5mm (L x W x H)
Four mounting bolt holes, diameter 3.1mm
Module interface:
DC+: positive power supply (VCC)
DC-: negative power supply (GND)
IN: can be high or low level to control the relay
Relay outputs:
NO: normally open
COM: Common Interface
NC: normally closed
High and low level trigger options:
It is low level trigger when jumper connects to LOW pin
It is high level trigger when jumper connects to HIGH pin
Package includes:
1 x 1 Channel H/L level trigger optocoupler relay module
Interfacing with a relay