GPRS A6 Module SMS Board GSM GPRS Wireless Data Transmission Over SIM900A
โมดูล SIM โทรศัพท์มือถือ สามารถใช้ arduino โทรออก รับ สาย หรือส่งข้อความได้ มีช่องเสียบ สัญญาณเสียง สามารถฟังเสียงและส่งเสียงการพูดคุยได้ รองรับ SIM 2G 3G 4G
คุณสมบัติเพิ่มเติม GPRS A6 Module SMS Board GSM GPRS:
- Dimensions of 22.8 × 16.8 × 2.5mm;
- Operating temperature -30 ? to + 80 ?;
- Operating Voltage 3.3V-4.2V;
- Power voltage> 3.4V;
- Standby average current 3ma less;
- Support the GSM / GPRS four bands, including 850,900,1800,1900MHZ;
- Sensitivity <-105;
- Support voice calls;
- Support SMS text messaging;
- Support GPRS data traffic, the maximum data rate, download 85.6Kbps, upload 42.8Kbps;
- Supports standard GSM07.07,07.05 AT commands and extended commands Ai Thinker;
- Supports two serial ports, a serial port to download an AT command port;
- Command supports the standard AT and TCP / IP command interface;
- Support digital audio and analog audio support for HR, FR, EFR, AMR speech coding;
- Support 2G 3G 4G mobile card Unicom card
- Support ROHS, FCC, CE, CTA certification;
Module Pin Flag:
- VCC_IN : Power Supply Input 5V -9V
- GND: power ground
- U_TXD : the A6 module to send (TTL level)
- U_RXD : the A6 module receives (TTL level)
- RS232_TX: 232 serial port
- RS232_RX: 232 serial port to receive
- HTXD: Serial Interface Upgrade
- HRXD: Serial Interface Upgrade
- MIC- \ MIC +: microphone input
- REC + \ REC-: Speaker output
- INT: Control module is used to enter a low-power mode, high back out into the low
- PWR: power button,> 1.9V more than 2s to boot
- (Module hardware to do the processing, power is automatically turned on, eliminating the need for wiring trouble)
- EN: MP1584 power chip enable pin, pulled enable power chip, low enabled, this pin can be used as module reset pin enable with such abnormal module is restarted.