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Mobile App Dev

Mobile Developer’s Advice for Implementing Device Firmware Updates

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When developing mobile apps for connected devices, handling device firmware updates (DFU) is a common task we need to tackle. Device firmware updating is the process of installing new programming onto an embedded device. By leveraging BLE communication, we can use mobile phones to initiate a DFU mode and transmit the new firmware to the embedded device. However, in order to accomplish this, the embedded device must have support for performing…
Julian Hays, mobile software engineer
Culture

Meet the Team – Julian Hays

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” series, where we introduce you to one of our team members…
BLE Firmware Engineering office
BLE

Creating a BLE Peripheral with BlueZ

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While I’m fairly well-versed in working with BLE on an embedded device, I have so far had little experience with using BLE at a higher level. To help remedy this, I underwent the task of creating a BLE peripheral running a GATT server on a…
Ryan Kornetzke - embedded engineer at Punch Through
Culture

Meet the Team – Ryan Kornetzke

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” series, where we introduce you to one of our team members…
Engineers meeting about Kotlin language features
Mobile App Dev

Our 5 Favorite Kotlin Features

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When Swift was released by Apple for iOS developers, Android developers were in awe and envious of this modern programming language that provides null-safety and an expressive yet concise syntax. Thankfully, the Android Studio 3.0 release in 2017…
Ultimate Guide to BLE and Android
BLE

The Ultimate Guide to Android Bluetooth Low Energy

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With its ability to consume very little power yet still provide the connectivity to communicate with small devices, more and more people are looking to hop on the Bluetooth Low Energy (BLE) bandwagon for Android apps. Unfortunately, the Android…
Embedded Engineer Henry in Punch Through Office
Culture

Meet the Team – Henry Anfang

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” series, where we introduce you to one of our team members…
Chee Yi Ong
Culture

Meet the Team – Chee Yi Ong

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” series, where we introduce you to one of our team members…
Engineering Intern, Wally
Culture

My First Few Months as an Engineering Intern

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As a Senior in college, my worries begin to shift away from school and turn to my professional career. Internships play a large role in the preparation of entering the workforce and I am finding it more of a relevant concern. Information Technology…
Meet Charlie
Culture

Meet the Team – Charlie Kellerman

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” series, where we introduce you to one of our team members…
Gretchen Walker - mobile software engineer
Culture

Meet the Team – Gretchen Walker

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” series, where we introduce you to one of our team members…
Embedded Engineer standing in office
Culture

Meet the Team – Amanda Nguyen

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” series, where we introduce you to one of our team members…
Andy Lee standing in the Punch Through office
Culture

Meet the Team – Andy Lee

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” series, where we introduce you to one of our team members…
Alec Letourneau standing in Punch Through office
Culture

Meet the Team – Alec Letourneau

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” series, where we introduce you to one of our team members…
Erin standing in Punch Through office
Culture

Meet the Team – Erin Moore

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At Punch Through, we encourage everyone to proudly be themselves and want you to know the people behind the work that we’re so proud of. That’s why we launched our “Meet the Team” blog post series, where we introduce you to one of our team…
Punch Through Hiring Process Blog Post Image
Culture

What to Expect when Applying at Punch Through

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Looking for a new job is stressful. There’s very little satisfaction in applying to jobs online, and the hiring process can be confusing. You spend hours online reading about various companies, scour through job descriptions, and fill out…
Intern Louis in the Punch Through office with an office dog, Archer
Culture

Meet the Team – Louis Barrett

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We encourage everyone to proudly be themselves and want you to know the people behind the work that we're so proud of. That's why we are launching a "Meet the Team" blog post series, which highlights one of our team members.  Meet Louis,…
Karel standing in the Minneapolis Punch Through office
Culture

Meet the Team – Karel Kalthoff

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We encourage everyone to proudly be themselves and want you to know the people behind the work that we're so proud of. That's why we are launching a "Meet the Team" blog post series, which highlights one of our team members.  Meet Karel,…
Computer coding with Android and Bluetooth symbol - Android BLE tips
Mobile App Dev

4 Tips to Make Android BLE Actually Work

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Android development is hard, and it's no thanks to its relatively fragmented ecosystem and having a million OEM’s out there. Throw BLE—which is extremely hardware and Bluetooth spec. dependent!—into the mix and the platform's behavior becomes…
NFC_278553919
Mobile App Dev

CoreNFC – The Missing Link

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Near-field communication (NFC) is standardized by ISO/IEC 18092. While not a new technology it has become more important with the proliferation of mobile devices. Phone manufacturers have increasingly begun to incorporate NFC hardware in their…
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BLE

Maximizing BLE Throughput on iOS and Android

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Still confused about how fast you can really send data over Bluetooth Low Energy? It's not just you. A google search will turn up many incomplete answers. Each OS and device has it’s own restrictions, such as connection interval and number of…
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Mobile App Dev

WTF is an iBeacon

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At this year’s WWDC, Apple quietly announced one of their upcoming products for iOS 7, the iBeacon. Even if you’ve been following WWDC and the iOS 7 announcements, you might not have heard of the iBeacon. And even if you’ve heard the name,…
architectural-design-architecture-bridge-2524368
BLE

How GAP and GATT Work

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Bluetooth Low Energy (BLE) is a protocol developed by Bluetooth SIG that builds on the lessons learned from building lots of Bluetooth Classic devices. Compared to Bluetooth Classic, BLE consumes less power, requires less time and effort to…
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BLE

Testing Bluetooth Low Energy Devices

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Bluetooth Low Energy is a new Bluetooth standard that is exciting for a couple reasons- it enables very low power battery applications, and it further opens the smartphone accessory market. LightBlue allows you to test and simulate Bluetooth Low…