Tap into the potential of your projects to bring those multi-media ideas to life with our range of Audio & Visual products! Within this selection you will discover the ability to create epic light shows, capture photo and film, or delve into the world of high definition audio. Whether you're using a Raspberry Pi, other micro computer, or looking for stand alone options, you can master the realm of sound and colour here.
Here you'll find all the extra bits & bobs that are essential to complete the swag bag of any modern maker! We have a huge number of items that will help fill out your maker tool kit, satisfy your cabling requirements or even boost your connectivity and productivity.
Cases, cases, cases!! Here is our extensive range of fantastic cases and enclosures for your maker movement activities. Choose from the slick & sleek, bold & colourful or weird & wonderful. No hobby project is complete without the perfect case to complete the look and fit the application, and here you should have no problem at all in finding the enclosure that is right for you!
Inside this part of the shop you can find all the bits and pieces you need for your prototyping needs. Here you can kit out your maker station with tools and consumables, as well as other components such as headers, sensors and accelerometers to bring all those epic ideas to life!
Inside this part of the shop you will find a plethora of add-ons for your Raspberry Pi and other micro computers. Our Maker Emporium includes everything from plug-and-play HATs, to breakout kits and boards including sensors, drivers, motors, wearables and much, much more. Here is where any maker can equip themselves with the gizmos and gadgets they need to take their embedded projects to new heights and beyond!
There are so many great things you can do with the Raspberry Pi - almost too many to list! These kits & bundles are one of the best ways of getting involved with everyone's favourite single board computer. Whether you want to build a bespoke project, or just get your hands on the gear you need to get your ideas off the ground, we think these bundles are the fast track to optimum levels of fun!
We carry a large range of power supplies and power solutions which cater to any need that you might have in your maker adventures. Whether you just need a standard mains supply, to be able to make your projects portable, or something a bit more heavy duty, we've got you covered so you never get caught short.
Here at Pi Supply, we love everything offered by the Raspberry Pi... but we love other single board platforms too! We like to offer a range of options that is as wide as possible to help make all your maker dreams a reality. Here is the range of other micro computers that we carry, including Arduino, BeagleBone and micro:bit.
Take a look at all the original products we have to offer here at Pi Supply! Whether you are looking for self-solder kits or fully assembled HATs, you can explore new horizons with Pi Supply, and do even more to unlock the potential of your Raspberry Pi. Check out our range for LED & IR toys, ePaper applications, power solutions and much more to expand your range of projects.
2 channel 12 bit resolution digital to analogue output (DAC)
Real time Clock (RTC) with CR2032 battery holder.
Expander Pi is a versatile digital and analogue expansion board. It allows you to connect your Raspberry Pi to switches, lights, sensors, and many other devices giving you a way to communicate with the outside world.
The Expander Pi plugs onto the GPIO port on your Raspberry Pi and can be securely fitted to the Raspberry Pi using the optional mounting kit. It is powered through the host Raspberry Pi using the GPIO port or via the on-board power connector. Extended pins on the GPIO connector allowing you to stack the Expander Pi along with other expansion boards.
Using the Expander Pi you can connect 8 analogue inputs, 2 analogue outputs and 16 digital input or outputs to your Raspberry Pi. The Expander Pi also features an on-board Real Time Clock (RTC) to ensure that your Raspberry Pi always has the correct date and time.
Mounting holes are provided so you can securely bolt the Expander Pi to your Raspberry Pi with our mounting kit (sold separately).
The 16 input and output channels, using MCP23017 16-bit I/O expander from Microchip Technology Inc, can be independently configured as either inputs or outputs with a maximum input of 5 volts on each channel.
The 2 channel digital to analogue converter is a 12 bit resolution using Microchip MCP4822 dual channel 12-bit DAC with an internal voltage reference.
The 8 analogue to digital converter is a 12 bit resolution using a Microchip MCP3208 8-Channel 12-Bit A/D Converters with SPI Serial Interface with a maximum sample rate of 100 ksps and includes a 4.096 volt precision voltage reference. Please note the maximum sample rate is dependant on the programming language used and the CPU speed and usage. A separate Vref pin is included allowing you to use an external voltage reference. If you do choose to use an external voltage reference you will need to disconnect the onboard voltage reference IC by removing the solder bridge from jumper J1. Failing to remove the J1 solder bridge when using an external reference could cause damage to the onboard voltage reference or your external reference circuitry.
The Real Time Clock uses the DS1307 RTC real time clock and a CR2032 battery to maintain the date and time when the main system power is not available.
Warning: Do not connect the Expander Pi to your Raspberry Pi when the power is connected without a CR2032 battery installed. This can cause damage to the DS1307 RTC chip.
The Expander Pi uses a CR2032 button battery (battery not included).
Due to the use of the SPI bus and fixed addresses on the I2C bus the Expander Pi can not be stacked along side the ADCDAC Pi Zero or RTC Pi Plus/Zero. Only one Expander Pi can be used on a Raspberry Pi.
The I2C address for the MCP23017 digital I/O chip is set to 0x20, if you use the Expander Pi with an IO Pi Plus/Zero you will need to ensure that the addresses for the IO Pi chips are not set to 0x20.
If you want to power the Raspberry Pi from the USB connector and use a separate supply for powering the Expander Pi we recommend that you remove the solder bridge "JUMPER" next to GPIO pin 1 on the Expander Pi, disconnecting it from the Raspberry Pi 5V pins.
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