The Qoitech Tech Papers

How do IoT protocols affect a device’s energy consumption?

We took a look at communications layers in the IoT stack, how the actual data can be transmitted, and examined the differences in power consumption when using different IoT protocols.

How do NB-IoT network registration and coverage affect an IoT device’s power consumption?

Cellular LPWAN technologies come with many benefits, especially when it comes to power consumption. As with any other connectivity technology, one must be aware of what can affect device’s battery life from the ecosystem perspective, and understand the potential trade-offs.

How much energy does UART communication drain from your ultra-low-power IoT device?

Optimizing designs for ultra-low power has become one of the top challenges in battery-driven devices both on hardware and software level. But does UART communication really drain energy from your ultra-low-power IoT device?

P-channel MOSFET (PFET) as a load switch – datasheet vs measurements

If you want to use a p-channel MOSFET (PFET) as a load switch for your battery-powered device, you want to be aware of how the battery behaves for your device.

DIY Water Level Indicator – Part 2: Improving battery life up to 40 times

A sea level measurement station is a good example of an IoT use case of monitoring at remote locations, where requirements on the internet accessibility and long battery life are high.

How accurate is your low current measurement?

When it comes to test instruments for current measurement, you should always be able to find information about how accurate the measurements will be. We’ll compare Otii Arc to other measurement instruments.

Automatic switching between a debugger and power measurements

Automate power consumption measurements. Use a switch board for automatic switching off/on the debugger or USB connection to your device under test.

How to avoid high current peak draining the coin cell battery life?

Our Head of Product Development, Björn, has just published an article on DesignSpark about whether it is actually possible to avoid the typical high peak current issues with coin cell batteries by using a capacitor.

How to estimate the battery life of the product you are developing?

Probably for a good reason we tend to turn towards the quickest yet most basic estimations. But we all know that it’s not good enough. Picking the right method of estimating battery life is crucial!

Analyzing power consumption of cellular IoT devices with Otii and a network simulator

Peter Macejko, a Wireless Specialist at Anritsu, paired Otii Arc with a network simulator MT8821C to analyze the power consumption of cellular IoT systems.

Battery benchmark – Will my LoRaWAN IoT device work with a coin cell battery?

With LoRaWAN being one of the most popular IoT connectivity standards, it is interesting to understand what kind of batteries work using this technology.

How to minimize the noise in your Otii measurements

To make sure your measurements are done in the best possible way, focus on minimizing noise in your everyday Otii measurements.

Otii and short pulses

If you’re wondering how shorter pulses affect energy measurement accuracy, you’ve come to the right place!

How Spreading Factor affects LoRaWAN device battery life

The good old Spreading Factor – one of the key LoRaWAN characteristics that can make or break your IoT solution. We teamed up with The Things Network to explore how to find the right balance between battery performance and long-range communication.

On power management for IoT: New case study

A new case study on power management for IoT by our Björn published at DigiKey

Smart lab power supply

When we embarked on the journey to bring Otii to the market we really wanted to offer an all-in-one tool for working with device current consumption.

How does the Otii Arc handle a device under test that sources voltage into the main terminals?

You asked us how the Otii Arc handles a device under test that sources voltage into the main terminals.

How to run automated measurements using Command Line Lua Interpreter

Lua scripting, an Otii premium feature, is very useful for automating iterative and time consuming power consumption measurements.

Minimize energy consumption of a microcontroller by lowering the speed and voltage of the central processing unit

In this tech paper we showcase how to minimize power consumption of an Atmel ATmega328PB Xplained Mini evaluation board.

DC/DC converter efficiency measurements

One of the important design considerations in order to get the most out of the battery life for an IoT device is how to connect the battery (or batteries) to the load. The best option is often to connect the two through a DC/DC converter.

Controlling periodic activity of peripherals to minimize energy consumption

This application note describes how to schedule periodic activities in order to achieve low energy consumption.

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