When it comes to hardware development, many challenges appear, like technical, commercial, logistical, financial, etc. In this article, we will explore a possible way to develop an IoT device fast and easily.

Something that impacts all these factors is the existence of multiple providers. With each of them, it will be necessary to negotiate prices, delivery times, confidentiality agreements, etc.

On the purely technical side, there are design, integration, certification, and other challenges.

In this situation, a question arises.

Is it possible to solve all these problems at once?

The solution is in the modular design.

Take the case of products that require certifications, such as wireless devices.

Paying for the certification of a wireless product is a very high barrier for small businesses. The costs are very high and are not justified by the production of small quantities.

The use of modules comes to solve this problem. The large manufacturers carry out the certification of these modules and prorate it on huge quantities of products. In this way, small companies can develop their products without having to pay high certification costs.

At the same time, the problem of getting all the components, assembling the PCB, sending it to production, etc. is solved. We simply add the module to our product, which in many cases may be the most important hardware to include.

Notice, however, that you will still have to design and produce the PCB for your device.

There is no doubt that the modules have opened the doors to a production more focused on developers and small businesses. And in this way, they have also generated products extremely adapted to specific uses and customer requirements.

The Wisblock ecosystem

RAK Wireless is a company that offers a great modular system to develop IoT devices.

Through very ingenious design, the company managed to develop a system that allows the combination of different pieces of hardware as if it were a set of blocks.

In this way, processors, communication interfaces, and sensors of all kinds can be combined, simply by fitting these blocks together. It is possible to have a working prototype in a matter of minutes. You can even build the final products using this system.

Without a doubt, developing an IoT device in this way is very easy.

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Choose from many options

There is a wide variety of WisBlock modules and if the sensor you are looking for is not there, you can still use any interface (I2C, UART, ADC, GPIO, RS485, etc) to connect what you need.

On the communications side, you can find LoRa/LoRaWAN, Cellular LTE-M/NB-IoT, Wi-Fi, and Bluetooth. At this point, it is good to clarify that RAK Wireless places a particular emphasis on LoRa/LoRaWAN since it also offers ready-to-use gateways and products.

Recently, RAK has added a lot of new sensors, including audio (microphones, audio processing, amplifiers, etc).

You can build virtually any type of IoT device.

Development environment

Besides hardware, RAK Wireless also offers several software tools for developing firmware.

First, you have three software tools for upgrading and configuring the devices.

These are the DFU tool, WisToolBox, and Rack Serial Port Tool.

Also, you can create your firmware using the RUI framework. It provides an API that you can use to develop customized firmware.

You can use RUI3 in Arduino IDE and Visual Studio Code.

Conclusion

Building a new IoT device is not an easy task.

However, a development framework that provides hardware and software tools can reduce the complexity and effort needed.

In this way, the solution proposed by RAK is a good option.


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