Skip to main content

Engineer builds his own cell phone with a Raspberry Pi

engineer builds cell phone raspberry pi
Image used with permission by copyright holder

The Raspberry Pi — is there anything it can’t do? The tiny computer has helped inventors and hackers create a media streamer, outer space camera, games console and cocktail-mixing robot in its short lifetime, and you can now add cell phone to that impressive list. Linux software engineer David Hunt has put together a working mobile phone using spare parts and a Raspberry Pi, as demonstrated on his blog.

Hunt, based in Ireland, has been tinkering with the miniature platform for a while — he has previously demoed a Pi-powered RAID server and DSLR attachment, among other projects — but his working cell phone is his most impressive effort yet. In total, the components add up to a bottom line price of $158, if you’re thinking about building your own cell phone.

As you can see from the picture above, the custom-made touchscreen interface is fairly basic, but it does the job. You can only make calls with the PiPhone, so a quick burst of 2048 or a flick through Facebook is out of the question. As well as the Pi and the touchscreen, the device is kitted out with a 2500mAh LiPo battery and a SIM900 GSM/GPRS module.

Watch the video below to see the PiPhone in action. “It’s a bit of a mess, but you wouldn’t actually use it in the real world,” Hunt says, before explaining that heat was the biggest problem he came across. “You can feel it getting a little bit warm. It doesn’t crash or anything, but I’m sure it wouldn’t be good to put it in an enclosure without some sort of heat sink.”

Editors' Recommendations

David Nield
Dave is a freelance journalist from Manchester in the north-west of England. He's been writing about technology since the…
This iPad just got a rare discount — save $100 at Best Buy
Call of Duty: Mobile on the iPad (2022).

The standard Apple 10.9-inch iPad rarely sees a deep discount but that’s the case over at Best Buy at the moment. Normally priced at $449, you can buy one for just $349 for a limited time. A hefty saving of $100, this is one of the better iPad deals at the moment and worth checking out if you want a new tablet or you’re keen to buy someone a great gift. Here’s what the Apple 10.9-inch iPad has to offer.

Why you should buy the Apple 10.9-inch iPad
The Apple 10.9-inch iPad is a pretty good tablet for anyone who wants something straightforward and useful. It has an attractive 10.9-inch Liquid Retina display with True Tone support so it looks great with whatever you’re doing, whether you’re browsing the internet, watching videos, or playing a game. It’s powered by the A14 Bionic chip with a 6-core CPU and 4-core GPU which is why the Apple 10.9-inch iPad easily joins the best iPads list for anyone seeking a great mid-range example. It’s easily capable of playing many games through Apple Arcade as well as being snappy when it comes to looking up YouTube videos and similar.

Read more
The 6 biggest announcements we expect from Google I/O 2024
Google I/O 2019

Google will hold its annual developer conference, Google I/O 2024, on May 14 in Mountain View, California. The event is about a month away, and we're expecting a few big announcements.

As with any Google I/O event, this year's conference will start with a big opening keynote presentation from CEO Sundar Pichai. But what actual announcements are we looking forward to? Here are a few of the biggest things that we are likely to see at Google I/O 2024.
Android 15

Read more
This crazy headband uses music and brainwaves to make you a better athlete
A person wearing the Alphabeats headband.

This company wants you to put on a headband and listen to music while the device's sensors in it read your brainwaves to help you focus and to increase your sporting performance. It’s called Alphabeats, and the electroencephalogram (EEG) headband combines with your choice of music and an app on your phone to help train your brain to either stay in its top-focused state or concentrate on its requirements in the moment, whether that’s relaxation, recovery, or sleep.

Aimed at professional ahtletes or highly motivated amateurs, Alphabeats won a CES 2023 Innovation award and is now available for pre-order. It costs $499 at the moment, but the price will increase to $689 after the promotional period ends. You probably won’t be surprised to learn (given the recent growing and  unfortunate trend) that this price includes a year’s subscription to the service, but at the time of writing, there’s no information about how much the subscription will cost after the first year.

Read more