Sending SMS using GSM Module and LPC2148

SIM300 GSM Module

When accessing GSM networks comes in picture in embedded system ,the only way around i to use GSM/GPRS modules which provides RS-232/UART interface and supports for AT command sets (Commands used for calling,Messaging etc) and usually easy to integrate with embedded modules. Some of the modules manufactured by SIMCOM are widely used as they are pretty cheap and are easily available.This post is about connecting a SIM300 module to LPC2148 using UART and send message to a mobile number. The SIM module is connected to the LPC2148 by using the…

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R30X Finger Print Module Device Interfacing

Many of you must have heard about the fingerprint sensor which a nice way to provide security. Here i have given the interfacing of the R30X fingerprint sensor module with  ARM LPC2148 board but the basics remain the same for all the micro-controllers. The first thing for interfacing the sensor with the controller is the handshaking, in which the controller first sends a signal or hex codes to the sensor and it acknowledges. After handshaking, only the controller can talk to the sensor. unsigned char Message[16] = {0XEF,0X01,0XFF,0XFF,0XFF,0XFF,0X01,0X00,0X07,0X13,0X00,0X00,0X00,0X00,0X00,0X1B}; This line…

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