IoT M2M blog

The home of free hints and tips about wireless IoT / M2M

Wi-Fi module – five minute set up

Wifi-module

This Wi-Fi module arrived yesterday.  The complete package includes the Wi-Fi module,  a USB connector and a Serial Peripheral Interface (SPI) to USB converter. The operating voltage is supplied via USB from the PC. After plugging the module into the USB port, a standard terminal software application was started on the PC. With the first […]

Waterproofed Android smartphones, tablets and pet trackers

Android devices and pet trackers for life, not just for Christmas – original blog posted in Nov 2011 As Janis Joplin sang, “My friends all drive Porsches, I must make amends”. Two of my friends own an iPhone and they always buy the latest smartphones. I will “make amends” and skip buying  a tablet for […]

GPS antenna selection for a GSM / GPS tracker – DUT 3

GPS chip loop antenna temperature drift

Interference of temperature on GPS antenna resonant frequency The device under test is a PCB of size of 40 mm x 20 mm, again with a GNSS antenna for a small tracking device. Small mobile GSM / GPS trackers are common for pets, humans or assets. Chip antennas operate as loop antennas which are magnetic […]

Helical GPS antenna versus GPS chip antenna

Glonass satellites on sky (Hannover, Germany)

Q: I came across a blog of yours some years back. By chance are you still offering assistance with GPS related antenna solutions? If so, we are trying to find a replacement for a Sarantel helical antenna.  We need to match or improve upon the performance of the Sarantel product. We are looking into Maxtena’s […]

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