Products tagged with 'gsm'
This GSM module is capable of 3G, GPRS & GPS. TTL communication protocol compatible with 5V, 3.3V microcontroller. Frequencies supported are GSM 800/900/1800/1900MHz, WCDMA 900/2100MHz.
SIM900A is a dual-band GSM/GPRS engine that works on frequencies EGSM 900MHz and DCS 1800MHz. SIM900A features GPRS multi-slot class 10/ class 8 (optional) and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4. The SIM900A is designed with power saving technique so that the current consumption is as low as 1.5mA in SLEEP mode. The SIM900A is integrated with the TCP/IP protocol; extended TCP/IP AT commands are developed for customers to use the TCP/IP protocol easily, which is very useful for those data transfer applications.