5 ways to detect connection errors and how to resolve them
30.09.2021 Cellular communication is the most stable wide-area wireless technology available today. The technology uses reserved frequency bands and commercial, well-maintained infrastructure. Having said that, there are several scenarios where your devices can experience connectivity issues. For example:
Evaluating NB-IoT and LTE-M with Raspberry Pi
LPWAN (Low Power Wide Area Network) technologies are key enablers for IoT applications and Cellular IoT (“CIoT)” is considered one of the most attractive approaches. CIoT works in the licensed frequency spectrum and current main streams are based on LTE technology and tailored to the needs of IoT. In particular, NB-IoT ("Narrowband – IoT") and LTE-M ("Long Term Evolution for Machines") are good choices for mission-critical monitoring or object tracking applications which are infrequently transmitting small data packages and also can be used for wearable devices with an extremely low power budget. In this post, we will explain an approach to evaluate an NB-IoT or LTE-M network with a Raspberry Pi - Installation and User Interface.
AT Commands Cheat Sheet for Cellular IoT Communication
The very thing that provides connectivity to your IoT devices is: a modem. Naturally the first step of entering the Internet of Things is connecting your hardware to a modem. This connection is achieved with the help of a set of commands called AT commands. In this blog post, you will find a cheat sheet of AT commands to get started with your cellular IoT solutions.
How EMnify contributes to AWS Certification development
As EMnify operates all its systems on AWS, many of our colleagues hold one or more AWS certifications. Becoming certified not only proves a certain level of knowledge, but also helps the individual to focus their learnings on our cloud platform of choice – as there is a lot to learn when it comes to AWS.
DNS Filtering with EMnify Cloud Connect and AWS Route53
IoT devices come in various shapes and sizes. And with that, security can vary from device to device depending on the platform, components, OS, firmware and application. In this post, I will use a mobile phone (Android/ iOS) as a payment terminal and outline how you can use DNS filtering to restrict internet access on all such devices in a centralized way.
Send Bulk SMSs to your devices with Postman
When you need to deploy a bunch of tracking devices at once, it's much easier to configure them in bulk. That said, attaching them to a configurator and downloading the right file can still be very tedious. SMS configuration is your hero here. And what's better than SMS configuration? Well, bulk SMS configuration!
How to Automate Workflows With Zapier and EMnify in 5 Minutes!
More and more businesses today are implementing automated workflows and want autonomy over it. To remove the developer-dependency of automation, several no-code tools have been introduced. With these no code tools, you can take the applications you already use and seamlessly connect them with triggers and actions from other apps within minutes - and without any coding experience. In this post, I will show you how to automate your SIM management workflows with EMnify and one such no-code tool: Zapier.
5 easy steps to build your IoT device dashboard with an EMnify eSIM
Developing a successful MVP (Minimum Viable Product) is essential to attract early-adopters and validate your product idea. As hardware is at the heart of your IoT products, delays in getting the hardware to you can push your schedule by a lot. To minimize delay, EMnify has launched eSIM for evaluation, eliminating the shipping time associated with traditional SIMs. With the eSIM, you can just download your profile and immediately start using the connectivity platform to build your dashboard.
How access any IoT device or web server behind a Teltonika Networks router
Cellular connectivity is the most favorable way of connecting IoT devices. However, other use cases may encompass many local devices that do not need a SIM card but communicate with a gateway/router. The IoT router is therefore equipped with an emnify SIM and sends the aggregated data through a cellular network to the desired cloud service. Common examples are utility sensors in a building communicating with a smart meter gateway or web servers running in a local network behind a router. Having one device communicating with a platform via cellular connectivity increases efficiency and reduces complexity. But what if you wanted to remotely access a specific device behind the router, for troubleshooting or configuration purposes?