Category Archives: smartphone

Build Your Own Android Smartphone

Let’s get this out of the way first – this project isn’t meant to be a replacement for your regular smartphone. Although, at the very least, you can use it as one if you’d like to. But [Shree Kumar]’s Hackaday Prize 2018 entry, the Kite : Open Hardware Android Smartphone aims to be an Open platform for hackers and everyone else, enabling them to dig into the innards of a smartphone and use it as a base platform to build a variety of hardware.

When talking about modular smartphones, Google’s Project Ara and the Phonebloks project immediately spring to mind. …read more

Continue reading

Posted in freecad, google ara, KiCAD, phonebloks, Raspberry Pi, smartphone, snapdragon 410, Snapdragon 450, The Hackaday Prize | Leave a comment

Unlock & Talk: Open Source Bootloader & Modem

During the early years of cell phones, lifespan was mainly limited by hardware (buttons wearing out, dropping phones, or water damage), software is a primary reason that phones are replaced today. Upgrades are often prompted by dissatisfaction with a slow phone, or manufacturers simply stopping updates to phone software after a few years at best. [Oliver Smith] and the postmarketOS project are working to fix the update problem, and have begun making progress on loading custom software onto cellphone processors and controlling their cellular modems.

Since [Tom Nardi] introduced Hackaday readers to postmarketOS, the team has made progress on compiling …read more

Continue reading

Posted in linux, phone hacks, postmarketos, radio hacks, smartphone | Leave a comment

Test Ideas Now With Sensors Already In Your Pocket

When project inspiration strikes, we’d love to do some quick tests immediately to investigate feasibility. Sadly we’re usually far from our workbench and its collection of sensor modules. This is especially frustrating when the desired sensor is in the smartphone we’re holding, standing near whatever triggered the inspiration. We could download a compass app, or a bubble level app, or something similar to glimpse sensor activity. But if we’re going to download an app, consider Google’s Science Journal app.

It was designed to be an educational resource, turning a smartphone’s sensor array into a pocket laboratory instrument and notebook for …read more

Continue reading

Posted in iphone hacks, light sensing, light sensor, magnetometer, microphone, phone hacks, smartphone, smartphones, tilt sensor | Leave a comment

Detecting Dire Diseases – with a Selfie?

They say the eyes are the windows to the soul. But with a new smartphone app, the eyes may be a diagnostic window into the body that might be used to prevent a horrible disease — pancreatic cancer. A research team at the University of Washington led by [Alex Mariakakis] recently described what they call “BiliScreen,” a smartphone app to detect pancreatic disease by imaging a patient’s eyes.

Pancreatic cancer is particularly deadly because it remains asymptomatic until it’s too late. One early symptom is jaundice, a yellow-green discoloration of the skin and the whites of the eyes as the …read more

Continue reading

Posted in image analysis, iphone, jaundice, Medical hacks, pancreatic cancer, phone hacks, sclera, slider, smartphone, symptoms | Leave a comment

Sneak Thieves Beware: A Pi Watcheth

Ever have that strange feeling that somebody is breaking into your workshop? Well, Hackaday.io user [Kenny] has whipped up a tutorial on how to scratch that itch by turning a spare Raspberry Pi you may have kicking around into a security camera system that notifies you at a moment’s notice.

The system works like this: a Raspberry Pi 3 and connected camera module remain vigilant, constantly scanning for motion and recording video. If motion is detected, it immediately snaps and sends a picture to the user’s mobile via PushBullet, then begins recording video. If there is still movement after a …read more

Continue reading

Posted in module, pushbullet, Raspberry Pi, security, security hacks, smartphone, system, video | Leave a comment

eMMC to SD Hack Rescues Data from a Waterlogged Phone

How do I get the data off this destroyed phone? It’s a question many of us have had to ponder – either ourselves or for friends or family. The easy answer is either spend a mint for a recovery service or consider it lost forever.  [Trochilidae] didn’t accept either of those options, so he broke out the soldering iron and rescued his own data.

A moment’s inattention with a child near a paddling pool left [Trochilidae’s] coworker’s wife with a waterlogged, dead phone. She immediately took apart the phone and attempted to dry it out, but it was too late. …read more

Continue reading

Posted in flash, recovery, rescue, smartphone | Leave a comment

Fundamentals of Fingerprint Scanning

Like most (if not all) Hackaday readers, I like to know how the technology I use works. I’m always amazed, for example, how many otherwise smart people have no idea how the cellphone network works other than “it’s a radio.” So now that I have two phones with fingerprint scanners on them, I decided I needed to know more about what’s going on in there.

Sure, I assumed the sensor was capacitive (but maybe not, I found out). Plus we all know some super glue, scotch tape, and gummy bears are all you need to fake one out. However, that’s …read more

Continue reading

Posted in fingerprint, Hackaday Columns, sensor, smartphone | Leave a comment

Fix-a-Brick: Fighting the Nexus 5X Bootloop

Oh Nexus 5X, how could you? I found my beloved device was holding my files hostage having succumbed to the dreaded bootloop. But hey, we’re hackers, right? I’ve got this.

It was a long, quiet Friday afternoon when I noticed my Nexus 5X was asking to install yet another update. Usually I leave these things for a few days before eventually giving in, but at some point I must have accidentally clicked to accept the update. Later that day I found my phone mid-way through the update and figured I’d just wait it out. No dice — an hour later, …read more

Continue reading

Posted in google phone, heat gun, heatgun, LG, nexus, nexus 5x, repair, repair hacks, smartphone | Leave a comment

Open Your Garage Door With Your Smartphone

The eternal enemy of [James Puderer]’s pockets is anything that isn’t his smartphone. When the apartment building he resides in added a garage door, the forces of evil gained another ally in the form of a garage door opener. So, he dealt with the insult by rigging up a Raspberry Pi to act as a relay between the opener and his phone.

The crux of the setup is Firebase Cloud Messaging (FCM) — a Google service that allows messages to be sent to devices that generally have dynamic IP addresses, as well as the capacity to send messages upstream, …read more

Continue reading

Posted in Firebase Cloud Messaging, garage, home hacks, internet of things, opener, phone, Raspberry Pi, smartphone, widget | Leave a comment

ZeroPhone gives Smartphones the Raspberry (Pi)

There are several open source phones out there these days, but all of them have a downside. Hard to obtain parts, hard to solder, or difficult programming systems abound. [Arsenijs] is looking to change all that with ZeroPhone. ZeroPhone is based upon the popular Raspberry Pi Zero. The $5 price tag of the CPU module means that you can build this entire phone for around $50 USD.

The radio module in the ZeroPhone is the well known SIM800L 2G module. 2G is going away or gone in many places, so [Arsenijs] is already researching more modern devices. An ESP8266 serves …read more

Continue reading

Posted in open source, phone hacks, Raspberry Pi, smartphone, ZeroPhone | Leave a comment