IoT System Architecture

Micro controller : ATmega328P

Operating Voltage: 5V

Input Voltage (Recommended): 7- 12V

Input Voltage (Limit): 6 - 20V

Digital I/O Pins: 14 (6 provides PWM output)

PWM Digital I/O Pins: 6

Analog Input Pins: 6

DC Current per I/O Pin: 20 mA

DC Current for 3.3V Pin: 50 mA

Flash Memory: 32 KB (ATmega328P) which 0.5 KB used by bootloader

SRAM: 2 KB (ATmega328P)

EEPROM: 1 KB (ATmega328P)

Clock Speed: 16 MHz

LED_BUILTIN: 13

Length: 68.6 mm

Width: 53.4 mm

Weight: 25 g

802.11 b/g/n protocol

Wi-Fi Direct (P2P), soft-AP

Integrated TCP/IP protocol stack

Integrated TR switch, balun, LNA, power amplifier and matching network

Integrated PLL, regulators, and power management units

+19.5dBm output power in 802.11b mode

Integrated temperature sensor

Supports antenna diversity

Power down leakage current of < 10uA

Integrated low power 32-bit CPU could be used as application processor

SDIO 2.0, SPI, UART

STBC, 1×1 MIMO, 2×1 MIMO

A-MPDU & A-MSDU aggregation & 0.4s guard interval

Wake up and transmit packets in < 2ms

Standby power consumption of < 1.0mW (DTIM3)

Power Supply : +5V DC

Quiescent Current : <2mA

Working Current: 15mA

Effectual Angle: <15°

Ranging Distance : 2cm – 400 cm/1″ – 13ft

Resolution : 0.3 cm

Measuring Angle: 30 degree

Trigger Input Pulse width: 10uS

Dimension: 45mm x 20mm x 15mm

Operating Voltage: 3.0V – 5.0V

Detection range: 2cm – 30cm (Adjustable using potentiometer)

Current Consumption: At 3.3V : ~23 mA,

At 5.0V: ~43 mA

Active output level: Outputs Low logic level when obstacle is detected

On board Obstacle Detection LED indicator