描述
- operating voltage: 5v.input voltage: 5v (usb)/7~23v(vin)/3.5~4.3v (bat).low-power consumption: (100ma 7v-gsm mode).digital i/o pins: 20.pwm channels: 7.analog input pins: 12.dc current per i/o pin: 40 ma.dc current for 3.3v pin: 50 ma.
- flash memory: 32 kb (of which 4 kb is used by the bootloader).sram: 2.5 kb.eeprom: 1 kb.clock speed: 16 mhz.wireless module: sim808 gsm/gprs/GPS module .quad-band 850/900/1800/1900mhz 2g gsm network.
- gprs multi-slot class 12/10.gprs mobile station class b.compliant to gsm phase 2/2+.class 4 (2 w 850/900mhz).
- class 1 (1 w 1800/1900mhz).bluetooth: compliant with 3.0 + edr (not open in this version).time-to-first-fix.cold starts: 30s (typ.).hot starts: 1s (typ.).warm starts: 28s (typ.).
- accuracy: horizontal position 2.5m cep.update rate: 5hz.control: at command (gsm07.07, 07.05 and simcom enhanced at commands).dimension: 73*54mm/2.87* inches.weight: 50g.
this is an arduino leonardo with sim808 GSM/GPRS/GPS. the sim808 with leonardo mainboard is the latest arduino board developed by cloud GPS for multi-purpose applications. the onboard sim808 module includes an integrated quad-band GSM/GPRS and GPS satellite navigation module, and a 4 layer pcb integrates the microcontroller, microphone, headphone jack and GPRS/GPS, giving this board the tiny footprint of a regular credit card! meanwhile, the board includes a sleep mode feature for extra-low power consumption. and an on-board 3.7v lipo battery power supply and battery-charging circuit has been integrated into the board, making it ideal for applications such as real-time car tracking, security patrolling and iot projects.compared with the existing sim808 modules on the market, this sim808 uses the latest version with better stability.