Neoway M590 GPRS tutorial: sending and receiving files from/to SD card

Neoway M590 GPRS tutorial on sending and receiving files from/to SD card from Vadim Panov: Here’s a bit of useful info from what I’ve been doing lately. I got a job to design a device that connects to a web-server via GPRS and downloads a bunch of tiny WAV files, that it later plays on […]

28C3: Cellular protocol stacks for internet — demystified

Harald Welte presented this talk at the 28C3 Chaos Communication Congress in Berlin. While we use packet oriented transmissions daily over cellular networks, unlike TCP/IP and Ethernet many even in the hacker community are not familiar with the actual protocol stacks for those cellular packet networks. The purpose of this talk is to give an […]

Open source GSM/GPRS autonomous weather station

Andrianakis built an autonomous data logging system using a GSM/GPRS cell phone modem module to transmit data to a online server. It’s designed to read wind velocity for a future wind power station installation. A PIC16F877A communicates with a SIM900 GSM/GPRS module, and reads sensor values. By using a battery and a solar cell charger, […]

GPRS Arduino shield with SIM900 module

McZ tipped us to the GPRS shield using the new SIM900 cellular data module in a followup to our position location with GSM cellular post. GSM/GPRS 850/900/1800/1900MHz … for voice, SMS, Data, and Fax in a small form factor and with low power consumption. It is controlled via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced […]