UC20 module already provides besides a high speed UMTS/HSPA+ data transfer even the reception of data from GPS/ Glonass satellites.
When company Quectel launched on the market the UC20 3G module a few months ago, they also announced a forthcoming enhancement of functionality for reception of GPS/Glonass. We can unveil with pleasure, that reception of GPS/ Glonass signal via the UC20 module is already a reality and so this module has become one of the most versatile communication modules on the market. Combination of GSM/GPS/Glonass enables for example to design a device for monitoring of position of vehicles, goods, etc, by means of a single module.
At the same time, we also incorporated into our standard stock offer a miniPCIe version – UC20-E-MINIPCIE, increasing flexibility of usage of the module. All further information can be found in our recent article: Quectel 3G modules of UC20 series will ensure a fast transmission even on 900 MHz.
Quectel UC20 integrates GSM and GPS into a single module - [Link]
The highest communication speed UMTS/HSPA+ and an easy communication via USB make the new module ideal for M2M applications.
Fast data transmission is becoming an inseparable part of devices for automotive industry, measuring, tracking, security systems, wireless terminals (POS), mobile computers etc.
When we´re choosing a module for above mentioned segments, it´s surely worth if the module also offers somewhat so to say “extra”. In case of the UC20 module it´s true, because there´s probably no parameter, which would the UC20 not meet and when you look closer at the datasheet, you´ll also find another functions like for example 2x 15 bit AD converter and other. A big advantage of the UC20 is, that it supports a fast transmission even outside of the 3G networks thanks to a dual mode (+ Multi-band) for WCDMA but even GSM with a support of GPRS/EDGE Multi-slot Class 12. A considerable benefit are also the Windows USB drivers (Linux and Android drivers are in development).
UC20 can air itself even with a high sensitivity and a high integrity of transferred data even in adverse conditions. For a development support, there are also available reference examples – UC20-reference design as well as UC20-Compatibility design regarding HW compatibility of UC20 with the M10 module.
All package (12x pdf) of software user guides can be downloaded on this link (11MB). Detailed information will provide you the documents UC20-Specification, UC20-Presentation and UC20 Hardware design.
For many applications can be beneficial the UC20 module on a PCB in a form of the Mini PCIe card. Also available is the UC20_EVB development board.
In case of interest in any modules from company Quectel, please contact us at firstname.lastname@example.org.
Quectel 3G modules of UC20 series will ensure a fast transmission even on 900 MHz – [Link]
jechavarria build a breakout board for the SIM900 GSM module. He writes:
Hi! I want to share with you my last design. It’s a breakout board for the SIM900 GSM module. Fits in a 50×50 mm board, and has an IO connector with many of the signals you need to control it. Also, as the board is designed to work with a battery, it also includes all the necessary components to charge and manage it. The internal power supply is 3.0V, so external controller must be work at this voltage. Here’re a couple of photos of the board
SIM900 breakout board - [Link]
David A. Mellis writes:
For a little over a year, I’ve been working on an open-source, DIY cellphone as part of my PhD research at the MIT Media Lab. The current version of the phone is based on the Arduino GSM shield and Arduino GSM library. It sports a deliberately low-resolution screen (8 characters, each a 5×7 matrix of LEDs), a laser-cut wooden enclosure, flexure (living hinge) buttons, and a ~1000-line Arduino program that powers the user interface. The phone can make and receive phone calls and text messages, includes a phone book and caller id, and keeps the time. Everything you’d expect from a 20-year old Nokia! (Except snake.) I’ve been using various iterations of the project as my primary cellphone for the past six months or so.
Open-source, do-it-yourself cellphone (built with Arduino) - [Link]
What was technology like inside a 1994 Motorola MicroTAC GSM mobile phone?
EEVBlog #492 – Vintage Motorola MicroTAC Mobile Phone Teardown - [Link]
Boris Landoni writes:
It’s small but packed with features. The GSM alarm we present today, sports a PIR motion sensor, can be battery operated and it’s capable to communicate via GSM. It can transmit alarm conditions and receive commands from remote. It’s also capable to indicate problems such as is insufficient voltage supply or tampering.
It’s not so conventional for antitheft system: to integrate a movement sensor, a PIR motion sensor and a temperature probe in a single appliance: all this accompanied by an SMS sending GSM / GPRS module. This circuit was born as a very versatile, ready to use, built-in alarm system: no installation is required, you can just drop it and it’s ready to work. It’s not by chance that is designed to be battery operated: it also features a battery state control to check the power.
GSM Multifuction Alarm with SIM900 - [Link]
Multi-band antenna 2J301 offers several properties for which it´s worth to consider its usage in your devices.
Decent gain, good VSWR values, small dimensions, resistance to outdoor conditions and a simple mount method are probably basic features, which we´d expect from external antennas for the GSM/UMTS, PCS bands. Antenna 2J301M/SMA from company 2J provides all this but it features yet another positive feature – a good price.
That´s why, if you´re searching for an antenna with good specification for a good price, 2J301M is a good choice. An elegant design from an ABS plastic is suitable for virtually every application and an easy installation is ensured by a magnetic bottom plate together with a 2.5 m long flexible cable (RG174) with the SMA connector.
High-quality GSM/3G signal directly to your device – [Link]
new projects on Open-electronics.org:
Connected to a burglar alarm or fire alarm in the event of making phone calls playing voice messages. Controlled via DTMF actuators can operate on the spot.
In recent years we have introduced several telecontrols based on the SIM900 GSM module. We released schematics and code for a gate opener (that activates when receiveing a call from a given number), a GSM thermostat to manage the temperature of remote houses with simple text messages, a remote alarm control with DTMF and, last but not least, a remote alarm with I/O and controlled via calls or SMS.
Many of these tools send text messages or place phone calls in response to changes to the electrical inputs. In some cases, especially when the receiver is a human, nothing is like a voice that clearly yields you screaming “fire in progress!”, or”thieves in the house!” etc.
GSM Voice Dialer with Automation Control - [Link]
AKTAKOM’S EMF tester represents latest technology at the affordable prices.
Miami Fl., November 2 2012 – T&M Atlantic., distributer of the test and measurement equipment, today unveiled its newest EMF Meter Aktakom ATT-2592 with 50MHz to 3.5GHz frequency range. This portable device designed for safe measurement of electromagnetic field characteristics by isotropic method. The device is equipped with 3-channel sensor which allows measuring simultaneously on three axes: X, Y, Z. The device can be used to measure the radiation produced by wireless communications (CW, CDMA, DECT, GSM), radio stations, wireless Wi-Fi, microwaves, TVs and monitors, hidden signal sources and other sources of high-frequency electromagnetic radiation. Other design features include: Non-directional (isotropic) measurement with three-channel measurement probe, high dynamic range due to three-channel digital results processing and configurable alarm threshold and memory function.
Aktakom ATT-2592 EMF Tester has a wide range of applications from high frequency (RF) electromagnetic wave field strength measurements and cellular device radiation safety level measurements to wireless LAN (Wi-Fi) detection/installation and even spy camera wireless bug finder.
Introductory prices start from $139.00
More info available at www.tmatlantic.com
AKTAKOM ATT-2592 Portable Electromagnetic Field Tester – [Link]
We create a lamp controlled by SMS using a GSM shield, a RGB shield and a Arduino UNO. Due to the simplicity of these boards, simply plug one over the other and connect a strip led to have a lighting effect. Then sending normal text messages from any phone, you can turn on and choose the color to set.
IKEA SMS lamp with GSM shield - [Link]