Differences

This shows you the differences between two versions of the page.

--- guides:gsm_modules [2009/06/12 21:55] – danielrichman
+++ guides:gsm_modules [2009/06/12 21:58] (current) – danielrichman
@@ Line 7: / Line 7: @@
 ===== Protocols =====
 ==== Serial/AT commands ====
   * ASCII interface
   * Phone may or may not accept SMSes in plain text - you may need to convert to PDU code. This is relatively easy, and the binary result is hex-dumped as ASCII before being sent to the phone.
+  * REQUIRES \r\n (CRLF)!!! Linux users beware, don't waste your time wondering why it doesn't work!
 ==== FBUS ====
@@ Line 29: / Line 31: @@
   * Exposed contacts for FBUS are usually available on the outside of the phone only for older models. New Nokias have gold pads on the inside which are incredibly difficult to solder as they are gold plated.
   * Recommended to get a cable rather then soldering to the pins
@@ Line 35: / Line 39: @@
   * The w800 accepts AT commands over a 9600 baud serial.
   * Although a USB cable can be used to connect this phone to the computer and harness the serial, connecting the phone to a microprocessor's UART is <del>harder</del> pretty much impossible, unless you fancy buying or writing a USB host controller.
-  * the T86i has 3.3v 9600 baud serial broken out.
+  * the T86i has 2.8v 9600 baud serial broken out - This is the easiest solution, as the UART is physically exposed. [[http://pinouts.ru/CellularPhones-A-N/erics_t28_pinout.shtml|This pinout]] is correct, and the pins required are pin 4 and 10. A DKU-11 USB cable works fine if you don't fancy soldering to the phone itself, but it's still difficult to hack. Many payloads have achieved success with this phone!
 ==== Telit GM862 ====