Atmega328 IOT Development Board

Designed for global market, SIM800 is a quad-band GSM/GPRS module that works on frequencies GSM
850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz. SIM800 features GPRS multi-slot class 12/ class
10 (optional) and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4.

High performance, low power AVR® 8-bit microcontroller
● Advanced RISC architecture
● 131 powerful instructions – most single clock cycle execution
● 32  8 general purpose working registers
● Fully static operation
● Up to 16MIPS throughput at 16MHz
● On-chip 2-cycle multiplier
● High endurance non-volatile memory segments
● 32K bytes of in-system self-programmable flash program memory
● 1Kbytes EEPROM
● 2Kbytes internal SRAM
● Write/erase cycles: 10,000 flash/100,000 EEPROM
● Optional boot code section with independent lock bits
● In-system programming by on-chip boot program
● True read-while-write operation
● Programming lock for software security
● Peripheral features
● Two 8-bit Timer/Counters with separate prescaler and compare mode
● One 16-bit Timer/Counter with separate prescaler, compare mode, and capture
mode
● Real time counter with separate oscillator
● Six PWM channels
● 8-channel 10-bit ADC in TQFP and QFN/MLF package
● Temperature measurement
● Programmable serial USART
● Master/slave SPI serial interface
● Byte-oriented 2-wire serial interface (Phillips I2
C compatible)
● Programmable watchdog timer with separate on-chip oscillator
● On-chip analog comparator
● Interrupt and wake-up on pin change
● Special microcontroller features
● Power-on reset and programmable brown-out detection
● Internal calibrated oscillator
● External and internal interrupt sources
● Six sleep modes: Idle, ADC noise reduction, power-save, power-down, standby,
and extended standby