https://iot-portal.com Development Blog

We had a report of the dial-to-open system on a 4G GSM intercom not working periodically using a Vodafone Ireland SIM. Everything else about the unit was working perfectly so we had to investigate. TLDR; it was working fine... perhaps a wiring issue We set about writing some firmware that could log the relevant information and allow us to see what happens within the software from our office in Liverpool. The actual GSM intercom was in another country but that doesn't matter as we can see the inner workings from anywhere. In fact the server we use for it to connect...

Easily Add/Remove Users via Internet Live Entry Log via the Web Wireless Connection using 4G & 5G Network No Expensive Cabling Required Data & SIM Prepaid for 10 Years 4000 Users per Controller Control Days of Week and Time of Day for Each User NB-IoT Model operates Deep Indoors and Underground Can use Existing Readers and Low Cost Tags 5G brings wireless connectivity underground and indoors removing the need for expensive cabling on your door control systems. With minimal data usage we provide prepaid service for 10 years on all major networks globally.Multiple doors can be managed online via the...

The 4G LTE Cat-M1 band and the '5G' NB-IoT band being rolled out with mobile phone 5G bands are the bands the networks intend you to be using for machine-to-machine (M2M) products. They offer the basic level of service required for these products and in return the networks charge very little for using them. NB-IoT is not accessible using mobile phone SIM cards; you need SIM a dedicated IoT to access them. These SIMs won't be connected to the Public Switched Telephone Networks (PSTN) so dial-to-open with your cheap PAYG SIM is not an option on these modern networks. You...

If you have a traditional alarm dialler/communicator that sends SMS messages and makes calls from the actual unit using a mobile phone SIM, then you won't know if it stops working until it's too late. This is one of the reasons we created the cloud dialler... If it's our cloud server sending the messages and making the calls we tell you when your dialler goes offline. You fit an alarm dialler to alert you to critical events that are happening when you're not there. If your dialler is responsible for telling you what is happening, how will you know when this...

4G Keypad Intercom Development   'Have you got a keypad intercom yet?' Well yes we do! It only took 8 years. We designed the simple 1-button 4G intercom with a keypad expansion in mind. In fact we had a non-working mock up of the keypad unit around the same time we launched the 1-button version. In practice though it took quite a few changes to the basic design which we will examine here. Our chosen keypad features a die-cast metal enclosure designed to be mounted with screws through the front panel. Having screws appear on the front panel looks a bit...