Outline

• Errata affecting the current measurements
• DCDC does not automatically switch off in System ON IDLE
• NFCT can draw current when not enabled
• Measurements
• Results
• Test setup: Power analyzer
• Power Analyzer Measurements
• Test setup: Oscilloscope and ampere-meter
• Oscilloscope Measurements

Preparing the development kit The USB connector must not be used to power the board during measurements as it will give unreliable results due to added supply and measurement noise when the debugger chip USB port is active. The board should be powered from a coin cell battery, or using the External Supply pins P21 for current measurements.

Below you will find general information on measuring current with the nRF52 chip and basic test equipment setup and techniques.

Smartphone battery life remains a frustration for many users. The same problem also applies to a wide range of IoT devices. Although it’s easy to bury yourself in detail seeking a perfect solution, it’s important not to lose sight of the broader picture.

The amount of connected devices is projected to grow from 2 billion objects in 2006 to 200 billion by 2020. That’s the equivalent of 26 smart devices for every person on the planet! The time to sit up and take notice is now, so let’s take a look at the impact this trend will have on your business.

In the fast-moving world of the Internet of Things, it’s more important than ever to make sure you can keep your products up to date quickly, securely and easily. Updating firmware remotely brings benefits to both companies and consumers.

When designing your product, it’s crucial that you choose a memory technology that lets you update your firmware easily. Otherwise, you may have to scrap a lot of products if you find errors. If this happens after they've been shipped to end customers, the negative impacts will be severe.

Firmware is held in non-volatile memory such as ROM, EPROM or flash memory. Let’s take a closer look at one of them: flash memory, which enables device firmware updates (DFU) and the advantages that this gives.

Get to know the differences between memory options and the trade-offs you need to make when working with Bluetooth Low Energy development projects.

在苹果 AirPods Max 之外，市面上还有不少优质的头戴式无线耳机产品。本文要为大家介绍的，就是来自铁三角（Audio-Technica）的 ATH-M50xBT2 。更棒的是，这款新品的售价，也只有前者的一半。

随着越来越多的手机取消了3.5mm耳机接口和TWS蓝牙耳机的兴起，有线耳机也慢慢退出历史舞台。在街头、地铁、公交车、机场等地方经常看到不少朋友都带着无线耳机，没有了线材的束缚，日常出行和运动期间佩戴更舒适。

在无线耳机大行其道的大环境下，入手一款无线耳机也不稀奇了，有些朋友喜欢项圈式耳机，游戏朋友喜欢耳塞式，还有些朋友喜欢头戴耳罩式，不管哪款，适合自己的才是最好的，而对我来说，我比较喜欢项圈式，不仅有续航的原因，也有佩戴时方便的原因，更重要的是项圈式比较适合运动.