Shopping List

When it comes to purchasing a Raspberry Pi-4 2GB Model B, it is recommended to buy from reputable suppliers like Pimoroni or The Pi Hut. It is important to avoid purchasing from Amazon and refrain from paying exorbitant prices. Some individuals purchase these devices in bulk and resell them at inflated prices.

To check which suppliers have Raspberry Pi 4 Model B in stock, you can visit the following link:

https://rpilocator.com/?country=UK

This website will provide you with information on available stock from various suppliers. By checking this resource, you can ensure a fair price and availability of the Raspberry Pi 4 Model B within the UK.

It is advisable to invest in a reliable and high-quality microSD card to ensure optimal performance and longevity. While cheaper options may be tempting, there is a higher risk of encountering issues or failure over time.

For purchasing a microSD card, you can consider the Sandisk MicroSD 16 GB. It is a reputable brand known for its reliability and compatibility. You can find this product on Amazon.

By opting for a reputable brand and product, such as the Sandisk MicroSD 8 GB, you can have confidence in the quality and performance of your microSD card, ensuring a reliable storage solution for your Raspberry Pi projects.

For powering your new setup, you have the flexibility to use a phone charger or a similar power source based on your preference. If you choose to power your setup using a cable, it might be beneficial to opt for a longer cable, allowing you to position it conveniently, such as poking it out of the back of the FM4 and plugging it into a wall outlet.

Please note that I personally have a 240V power switch in my FM4 setup. However, I must emphasise that working with mains power and electrical components requires confidence and knowledge in handling such systems. If you are not experienced or confident with electrical work, it is not recommended to attempt installing a 240V power switch yourself. Ensuring safety is paramount, so it is advisable to seek assistance from a qualified professional if you require any modifications to your FM4 power setup.

While there are alternative DAC hats available, it's important to note that they may utilize different pins, requiring modifications in the configuration and settings. For seamless integration and ease of use, it is recommended to stick with the IQaudio DAC hats. They are known for their excellent performance and compatibility.

You can consider the IQaudio DAC+ available from Pimoroni:

IQaudio DAC+ (pimoroni.com)

Alternatively, you can also purchase the IQaudio DAC+ from The Pi Hut.

By opting for the IQaudio DAC+, you can ensure a reliable and hassle-free experience, as it is specifically designed to work well with your Raspberry Pi setup.

While there are more expensive DACs (Digital-to-Analog Converters) available for the Raspberry Pi, it's important to ensure they are compatible with Volumio. Also, be aware that these DACs typically connect directly to the Raspberry Pi's 40 GPIO (General Purpose Input/Output) pins. This design means that while the DAC sits atop the Pi, it may utilize some of these GPIO pins for its functions, rendering them inaccessible for other uses. However, certain pins are often passed through the DAC, allowing you to connect additional components like button wires, SPI (Serial Peripheral Interface) screens, and rotary encoders.

To expand the GPIO pins of your Raspberry Pi for controlling the LEDs, you can use the MCP23017 IO Expansion Board available on Amazon. This board is compatible with the Raspberry Pi and provides 8 additional GPIO pins to connect and control the Buttons and LEDs in your FM4 tuner project.

You can purchase the MCP23017 IO Expansion Board from The Pi Hut using the following link: MCP23017 IO Expansion Board from The Pi Hut

This expansion board will allow you to conveniently extend the GPIO capabilities of your Raspberry Pi, enabling seamless integration and control of the Buttons and LEDs in your project.

To purchase the OLED SPI 1322 screens, you can visit the eBay link you provided: 2.8 Inch 256x64 OLED Display Module SSD1322 SPI Blue yellow White Screen Display | eBay

By following the link, you can make the purchase of the OLED SPI 1322 screens for your FM4 tuner project. You can buy these much cheaper on Ali Express, make sure they are SPI 1322. Please be aware that some are slightly bigger by a few mm. These will not fit the 3d printed holders which are available through me.

Others are available, you will need a 5-pin switch.

Purchase here KY-040 Rotary Encoder Module 360 Degree 5 PCS with Knob Cap Brick Sensor Development Board for Arduino including E-Book : Amazon.co.uk: Business, Industry & Science

(Make sure they are female to female) Purchase from eBay

No idea what size?.......M1?

Working with mains power can be dangerous and should only be undertaken by individuals with knowledge and experience in handling electrical components. It is important to prioritize safety and follow proper guidelines when dealing with mains power. If you are not familiar with working with mains power, it is recommended to seek professional assistance or consult an expert.

Purchase from Ali Express here: Best quality 5V 4A 20W Switching Power Supply Driver for LED Strip AC 110-240V Input to DC 5V free shipping (aliexpress.com)

This can be used to control the 240v switch or you could use it to just turn your Raspberry Pi on and off, although as the Raspberry Pi is only 5v it's okay to leave them on 24/7.

Purchase from eBay

Heat Shrink Tubing Kit,14 Sizes Black Heat Shrink Tube, Shrink Ratio 2:1 Electrical Shrink Tubing Wire Large Wrap Industrial Shrink Tubes Assortment for Wires Repairs, Soldering, Automotive Wiring : Amazon.co.uk: DIY & Tools

360pcs M2 M2.5 M3 Black Nylon Hex Spacer Screw Assortment Kit for Computers Replacement Screw Fastener : Amazon.co.uk: DIY & Tools

Once you remove the old circuit board from the FM4 tuner, you'll need to replace it with a suitable base. I use clear perspex, drop me a message on Discord and I will make one for you.

I have had some oled screen holders made, these are handy if your screen needs proper fixing down. Give me a shout on Discord if you would like one printed £15 + p&p