Renewable Energy Innovation

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Renewable Energy Innovation have designed, developed and manufactured a range of products and kits. The vast majority of these relate to renewable energy systems, but there are a few products which are just for fun – helping to inspire interest in science and engineering. We have now created a NEW brand for selling these kits, along with carefully selected products from other suppliers, at The Curious Electric Company. Please click there to purchase our products.

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We believe in the open-source philosophy and feel that it is beneficial to everyone to be open and free with information and designs. If possible, products have full constructional details for you to build them yourself. If you do build or modify one of our designs, we would love to hear about it. Please drop us an email at This email address is being protected from spambots. You need JavaScript enabled to view it. if you have any questions.

<p><strong>We are now selling kits that help you monitor and measure the world around you in our NEW shop. Please click and have a visit: </strong></p>
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This is a simple voltage regulator kit based upon the LM2574 step-down regulator IC.

If you have every needed to efficiently step-down a voltage from anything up to 60V DC to 5V regulated then this kit is for you. It can supply up to 500mA of current and is a DC-DC switching circuit which efficiently steps-down the voltage.

It is available from just £7 (including delivery within the UK).

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This is a simple, low-cost amplifier kit based upon the LM386 amplifier IC.

It has a maximum output power of 1W, which is good enough for amplifying mp3 players, phones and also the beeps and sounds from microcontroller projects.

Please note: This kit has one surface mount component, the LM386, which is good for those learning to solder surface mount components, but not best for people new to soldering. The rest of the parts are through-hole.

It is available for just £6 (including delivery within the UK).

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The DataDuino data acquisition (DAQ) kit is designed to be robust and configurable but relatively simple. It is based upon the Arduino platform (using the Uno bootloader). It stores data to an SD card and uses a real time clock for accurate timestamping. The fastest resolution is 1 second sampling, up to 99999 second sampling.

Data acquisition is always useful to monitor a wide range of projects. Knowledge is power. With data, you can monitor your system, make changes and record how well they do and generally improve the things you are working on. Also having real data and real facts is vital if we are trying to prove an effect.

Data is stored onto an SD card. A real time clock is used to time-stamp the data and the output is a .csv file.

Sample Arduino code for a datalogger unit is provided here and can be built upon.

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Welcome to fascinating world of bats! This bat detector device converts ultrasonic sounds created by bats and convert them down to a lower frequency so that we humans can hear them.

Bats use ultra-sonic pulses to navigate and to detect prey. These pulses are very high pitch (around 5 times the maximum frequency humans can hear). This electronic circuit converts the high pitched sounds produced by bats to a human-audible level. It can also be used to listen to other high frequencies such as peeling sticky tape, compact fluorescent lights and power supplies.

An updated version of this kit is available here. It costs £20 for the kit, or £28 for the klit and an enclosure. This includes free potage within the UK.

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This is an all-in-one six digit 7-segment led display unit with an ATmega328 programmed with the Arduino bootloader. The displays can be used to count, time things or display numbers. The display is bright enough to use inside or out. The display is controlled using an SPI, which uses four digital pins from the microcontroller, leaving all the others free. Multiple displays can be connected together using the SPI bus.

This kit is available for £25 (inc P&P within the UK). This product is now out of stock and probably not going to be back in stock, but This email address is being protected from spambots. You need JavaScript enabled to view it. if still interested.

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This LCD display unit displays any data sent to it via a serial connection. It is based upon the ATmega328 and the Arduino Uno bootloader.

This unit fits a number of  16 x 2 character LCD display units which use the Hitachi HD44780 driver. A back-light control line is also included.

The standard LiquidCrystal libraries, included within the latest version of the Arduino IDE, can be used.

This kit is available here for £10 (including UK P&P) without an LCD display (so you can use your own) or £15 including a 16 x 2 green/yellow back-lit LCD.

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This is a K-type (or J-Type) thermocouple amplifier which can be used to amplify the tiny voltage from a thermocouple to a higher voltage, readable by a microcontroller. Thermocouples can be used to measure very high temperatures, but they only output a very low voltage, hence the need for this amplifier.

This kit is based upon the AD8495 precision K-type thermocouple amplifier, or the AD8494 J-type version. The board requires a 5V supply and gives a linear output of 5mV per degree C. The circuit board contains filtering for the standard amplifier configuration. It can be used to measure temperatures up to 1000C.

This kit is available here for £10 (including UK P&P)

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Lots of the kits sold here require a programming cable to program the ATMEGA328 micrcontroller.

These kits use a bare microcontroller and do not incorporate a USB-Serial IC on them (unlike the actual Arduino UNO and others).

This reduces the cost of the circuit as, once the project is complete, you do not need to reprogram the IC and having the USB-serial IC is a waste.

Here are some reprogramming cables which work with our kits.

They are available for £9 (including P&P within the UK)


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We have created a range of modular power monitors, regulators and displays. The basic modular unit has been designed for pedal generators within the range of 12-35V DC and up to 20A DC, but bespoke units for different voltage and current ratings are available.

Options are available to display power, regulate the power level or record data to a computer or SD card.

Here is the overview of the options available and their features.

These units are available ready built and tested. Please This email address is being protected from spambots. You need JavaScript enabled to view it. to discuss your project and how we might be able to help.

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This is a large visual temperature display which can be used as an alert if a temperature set-point is reached.

It was built for a friend who has a laser cutter and needed to keep an eye on the coolant temperature. The cutter was not meant to be run with coolant temperature above 25°C. If the temperature goes above 25°C then the unit will 'bleep'.

It uses the large 7-segment displays, a minimus AVR and a Dallas 1-wire temperature sensor, all within a mountable laser-cut plywood enclosure.

If you would like one for your laser cutter set-up then you can also buy one built and tested for £30.

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This is a serially-interfaced 7 segment LED kit which can be linked together to create numerical displays.

The LED display is a large 45mm/1.75" unit with super-bright LEDs and is easily daylight visible.

The board contains a shift register and a power stage to control the display.

This can be controlled via a microcontroller - with Arduino examples included here.

This kit is available here for £10 per digit or £24 for a three digit displayhere for £10 per digit or £24 for a three digit display.

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Have your very own hand-made screen-printed DIY electronics T-Shirt!

I've been wanting to make a batch of these for a while and eventually found the time and space to start making them. To do this I had to learn how to screen-print, taught a silk-screen printing course at Nottingham Hackspace and made plenty of mistakes on the way. £1 from the sale of each one goes to Nottingham Hackspace.

Show your inner geek and keep it DIY.

 

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This kit is an Arduino shield to control a Red/Green/Blue LED board. Use it to help add colour to your projects.
It contains an IC which controls the output colour PWM using serial commands. If you need to change the colour then just send a new colour setting.

These units are also stack-able so you can run lots of large RGB units from just two digital pins.

This boards was dsigned in conjunction with Phenoptix, who supply LEDs and kits for makers 

It is available here via Tindie or direct via paypal. This kit is OUT OF STOCK and there are no plans to re-introduce it at present.

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The battery voltmeter is a plug-in voltage monitor for 12V battery systems. This could be used in a car, caravan, on a boat or for your off-grid renewable energy system.

The kit includes a switched 4 digit LED display to accurately show the battery voltage, an enclosure for displaying the voltage in an appropriate place and a 'cigar lighter' style socket to plug in and power the display.

Accurately knowing the battery voltage is very important for managing lead acid battery based systems. See our battery worksheet for more information on batteries and their state of charge.

The Battery Voltmeter is available as a kit for £12 (including P&P within the UK).

Or it is available fully built for £18 (including P&P within the UK).

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This kit contains all the parts you need to start your off-grid journey.

It is a DIY micro solar PV (photovoltaic) system, which includes a 10Wp solar panel, charge regulator and voltmeter, all encased in a laser cut wooden enclosure. This can be used to power small loads such as charging mobile phones, running a small sound system or even charging a laptop. The maximum output is 50W.

The kit costs £70 (plus £15 P&P within the UK, unless you can collect from Nottingham, UK)

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This TV-B-Gone kit is a 'disruptive technology device' designed to switch off annoying and unnecessary televisions.

The TV-B-Gone was conceived by hack-hero Mitch Altman. It is designed emit the 'OFF' code for the majority of TVs in Europe and the US. Basically it is a TV remote control which only has the power button. It is designed to turn off inappropriate TVs, such as unwatched ones in public spaces. It is a commercial product, but Mitch has also worked with Adafruit industries to have an open-source design.

A kit of all parts including a professional circuit board is available for £15 including free P&P within the UK. SPECIAL PRICE! This kit is now only £8 including delivery within the UK!! This is to clear the last few kits I have in stock.

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