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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!
R89.90  Inc VAT
4V to 40V DC to DC Step Down LM2596 Voltage Regulator Converter Module (Green step down LM2596)
Description:

The LM2596 is a commonly used popular step-down switching regulator IC. The adjustable version can take in input voltage from 4.5V to 40V and convert it to variable voltage sourcing upto of 3A of continues current. Because of its high current capability is commonly used in power modules to power/control heavy loads

Specifications:

Input voltage range: 4-40 v (40 v highest voltage limit)
Output voltage range:1.25V - 37V (input voltage must 2 V above output)
Output current: 2 A continuous output
Output power: maximum 15 w
Ripple frequency: 150 KHZ
Grain wave peak: 100 mv


IN : input positive
IN - : input negative
OUT : output positive
OUT - : output negative


Voltmeter precision: ± 5 ‰
Weight: 33g
Size: 7cm x 4cm

Package includes:

LM2596 voltage regulator converter module
R99.90  Inc VAT
PP Liquid Water Level Sensor Vertical Float Switch Down White (straight float level)
Description :

A compact vertically mounted float switch which can be mounted at either the top or bottom of a tank (by the supplied 'O' ring and nut) to either rise or fall for activation (internal magnet) of a sealed reed relay.
The sensor is supplied pre-wired with flying output leads.
Float switch is a used to sense the level of liquid within a tank, used to activate a pump, an indicator, an alarm or other device.

Use them with hydroponics, saltwater tanks, freshwater tanks, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or what ever your project may be
Contains no mercury
Down float switch

Specifications :

  • Maximum Load: 50 W
  • Max Switching Voltage: 100V DC
  • Minimum Voltage: 250V DC
  • Maximum Switching Current: 0.5 A
  • Max Load Current: 1.0 A
  • Max Contact Resistance: 0.4 Ω
  • Temp Rating: -20~ 80℃
  • Net Weight: 12g
  • Material: PP




Package includes :

1 x Liquid Float Switch


Resources:

Python library
Introduction to Buttons and Switches
Types of buttons and switches
R29.90  Inc VAT
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!
R89.90  Inc VAT
Dual USB 9V/12V/24V/36V to 5V Converter DC-DC 3A Step Down Power Module (5V dual usb converter)
Description:

With a load capacity of Maximum output 3A in total on both ports. This module is perfect for powering most small electronic projects. Mostly used for: mobile power, mobile phones, flat-panel USB5V powered devices

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
R74.90  Inc VAT
Dual USB Output 6-24V To 5.2V 3A DC-DC Step Down Power Converter (Dual USB 3A green step down)
Description:

If you love to power your projects with convenient 5V USB, then this DC-DC Step-Down Buck Module with Dual USB 5V 3A Output is an ideal choice!

Dual USB Output Buck Power Supply Adapter For Car Auto Cellphone MP3 and much more!

Specifications:

1.Model:usb1002
2.Name: Power Module
3.Features: Buck Charge
4.Product size: 33mm x 33mm x 8mm
5.Input voltage range: 6-24V
6.Output voltage: 5.2V (the output terminal is 5.3-5.4V, the load side is 5.1-5.2V)
7.Output Current: 3A (without heat sink, the stability of the output current is 2A)

Note:

1. Input voltage can not exceed 24V, otherwise, it will cause damage to the device!
2. The input positive and negative can not be reversed, otherwise it will cause damage to the device!

Package Includes:

1 x Dual USB Power Module
R39.90  Inc VAT
PUD Board (Pull-Up/Down Resistor Board) (MMP PUD board)

RASPBERRY PI BOARD NOT INCLUDED

Description:

Whether you're pulling-up or pulling-down, there's no need to frown! With the PUD board from ModMyPi, adding multiple pull-up or pull-down resistors to your Raspberry Pi project is easy!

If you want to detect an "output" with your Raspberry Pi, like a button being pressed or a motion sensor detecting movement, we can configure our Raspberry Pi's GPIO pin as an "input". That input pin can be in three states (known as Tri-State logic); "high", when 3.3V is applied, "low", when the pin is connected to 0V, and "floating" when the state is undefined. Floating voltages are troublesome in electronics as the input can either read high or low depending on various fluctuations in electrical noise. Like a gate flapping open and closed in the wind, someone needs to lock the gate closed, or wedge it open. If you leave it flapping, it's likely to hit someone on their bottom on the way through!

Like our gate, the best way to avoid a floating input is to "tie" your input pin either high or low to create a default state. This is usually achieved through the use of a pull-up or pull-down resistor, either connecting our input pin via a resistor to the Pi's 3.3V to achieve a 3.3V high state, or the GND line to achieve 0V low state.

Our PUD board takes the messy wiring out of adding a pull-up or pull-down resistor to your circuit. Simply wire up the sensor output to the single pin on the PUD board and add a shunt jumper to either pull up (u) or down (d)! Therefore when you apply a signal voltage from your sensor or switch, the Pi is easily able to sense into which logic state the pin has been pulled! No more trouble from floating I/O's!

The PUD boards connects across GPIO pins 11 to 18 (17 to 24 in BCM speak), and adds a jumper configurable pull-up or pull-down resistor to each GPIO pin: 11 (BCM 17), 12 (BCM 18), 13 (BCM 27), 15 (BCM 22), 16 (BCM 23) and 18 (BCM 24). Pin 17 (3.3V) & pin 14 (GND) are used to tie the pins!

The PUD Board Features:

  • Add a pull-up or pull-down resistor to your GPIO with the swap of a jumper!
  • Compatible with all Raspberry Pi Models Inc. A /B /2/3 & Zero/ZeroW
  • Tiny board means it's easy to integrate into any circuit - takes up just 8 GPIO pins
  • Connects across GPIO pins 11 to 18 inclusive (BCM 17 to 24)
  • In-line 1kΩ current limiting resistors on each GPIO
  • 10kΩ pull-up or pull-down resistors on each GPIO
  • All 6 GPIO pins can be configured independently 
  • Includes 6 x 2 Pin Shunt Jumpers & 1 x PUD Board
  • Jumper configurable pull-up or pull-down resistor on pins:
    • 11 (BCM 17)
    • 12 (BCM 18)
    • 13 (BCM 27)
    • 15 (BCM 22)
    • 16 (BCM 23)
    • 18 (BCM 24).
  • Pin 17 (3.3V) & Pin 14 (GND) are used to tie the pins!
  • To pull pin up, connect the jumper across "u" and the center pin
  • To pull pin down, connect the jumper across "d" and the center pin

What's in the box:

1 x PUD Board

Tutorials:

How to use the ModMyPi PUD Board

R99.87  Inc VAT
24V to 12V 10A Step Down DC DC Converter (24V to 12V 10A converter)
Description:


The Step-Down Converter lets you use 12V appliances in vehicles or machines that supply 24V of power. It steps down voltage. Widely used in auto, electricity, surveillance systems etc. The DC step down regulator’s mini size allows for easy, hassle-free, as well as discreet installation. It has a high conversion efficiency and low current draw when there is no load

What's in the box?

1 x step down converter
R319.90  Inc VAT
Buck Converter Step Down DC 24V to 12V 5A 60W Voltage Regulator (24 to 12V step down regulator)
Description :

A buck converter (step-down converter) is a DC-to-DC power converter which steps down voltage from its input (supply) to its output (load). 

1. Over current protection.
2. Short circuit protection

 Specification :
Minimum pressure2V
Input VoltageDC 24V(DC15V—40V)
Output VoltageDC 12V
Output Power60W
Output Current5A
Conversion Efficiency90%
Full Load Temperature Rise50 degree
 
Package includes :

1 X Buck Converter Step-Down Voltage Regulator
R219.90  Inc VAT
Precision Buck Converter AC 220V to 5V DC 2A 10W step down power supply module (220AC to 5DC 2A 10W)
This power supply is a isolated industrial grade built-in power module with temperature, over current, and short circuit protection.

Features:

Input Voltage: AC85 - 264V
DC 5V 2A 10W isolated output
Input Current: 0.0273A/115VAC  0.014A/230VAC
Input surge current: 20A (230VAC)
Frequency range: 50/60 Hz
Operating Temperature: -30 - 70 ℃
Relative humidity: 20%- 90%
Rated power: 10W
Output efficiency: 80%
Module size: 51mm x 23.8mm

What's in the box?

1 x AC-DC Voltage Converter
R96.90  Inc VAT
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