This article describes a GSM-based emergency call system with an RF receiver that sends calls and SMS to pre-programmed numbers when a small wearable transmitter is activated. It is designed for elderly people and bedridden patients who need to call for help with a single press of a button.
We emulate the TDG series remote controls using the GSM Shield. It’s not been long since we presented our GSM shield for GSM/GPRS modules SIMCom, QUECTEL, FIBOCOM etc. that was born to be incorporated in Arduino-based projects involving cellular connectivity; now it’s time to move on to the first practical application, which in this case…
This instructable video is all about how to monitor the Quality of water, interns of monitoring the level of water, the temperature of the water and its surrounding, the turbidity of the water (how clean the water is) as well as the PH levels of the Water. So this system monitors all of these…
In this project we’re going to show you how to request sensor data via SMS with the Arduino. As an example we’re going to request the temperature and humidity from a DHT11 sensor. To send and receive SMS with the Arduino we’re going to use the SIM900 GSM shield. More info
We make a device that allows GPRS connectivity via the USB port of any PC or USB host device. Internet connectivity via mobile phone network is now an extremely widespread reality and many of us use it in a transparent and unconscious way using common objects such as tablets and smartphones. However, this is…
RePhone is an open source and modular phone kit. With Rephone you can: 1.Create your own phone in minutes with the slim MODULES, accessible SOFTWARE, and customizable Phone Enclosures. 2.Hack anything around you, giving inanimate objects the power of cellular communication. Have a conversation with your pets, plants, toys, motorcycle helmets, robots, or drones through RePhone’s GSM and…
In the previous episode, we have described the library and the functions made available by it. Now we will introduce a series of sketches through which you will see in practice how the library works and it’s potential. The sketches will implement functions such as receiving or sending SMS, voice calls, managing certain generic…
Let’s discover a useful library to manage various low-cost GSM/GPRS modules, in order to provide cellular connectivity to our Arduino projects. Second part. In the previous episode, we introduced the shield hardware and exposed the technical features and possible applications, as well as mentioned the library for Arduino, here we complete the previous speech…
It supports various low-cost GSM/GPRS modules in order to provide cellular connectivity to our Arduino projects. First part. Given the growing demand for electronic equipment with connection to the GSM/GPRS network, we decided to develop a new GSM shield for the Arduino and Raspberry Pi 3 platforms, capable of supporting various modules on…
It is installed in cars, and thanks to a detector placed on the child seat, it warns us – via SMS or phone call – if we get away without bringing the child with us. Among the most saddening (and at any rate, infrequent) accidents in the news, there are those of parents that…
Lime Microsystems has unveiled a size- and cost-reduced variant of the LimeSDR board that it launched last year. The LimeSDR Mini is a free and open source project that supports the company’s entirely open-source LimeSuite host-side software that supports a range of SDRs. At 69 x 31.4mm, the LimeSDR Mini is about one-third the size of the original model,…
This new IoT development board, which measures just 67 x 25mm in size, provides Makers with a low-cost solution for adding Sigfox connectivity to their DIY projects. The MKRFOX1200 takes the functionality of the Zero, throws in Sigfox’s global LPWA network, and shrinks it down into a smaller form factor. Sharing a similar footprint as its fellow…
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