Hey,
I’m trying to connect the ge864 module and my micro-controller over uart. Can anyone confirm that I need a voltage translator
5V(avr) to 2.8V(telit) for the serial communication to work. Also, is there an IC that I could use to translate?
Best,
We’ve been using GE862s for a while now with ATmega1280s, with resistive voltage dividers. Those Telits have an absolute maximum input voltage of 3.6 V; 5 would nuke them.
Either roll your own or use a Logic Level Converter from Sparkfun - although its output voltage might still be too high.
I have this GM862 module and would like to connect it to my MCU (MCF52JM128 from Freescale). Since you already have connected your GM862 module to your own MCU can you let me know how you are getting them to talk with each other? It would help me jump start my project.
hey, I’ve another quick question. Should the rx pin from my micro controller be connected to the RXD pin of the telit module? Generally, RX from MCU is connected to TX of module, however, I have some strange behavior with the telit. The RXD pin is high and the TXD pin is low. Any thoughts on this?