Urban Lawn Monitoring in Smart City Environments

Table 1

Characteristics of different nodes.

	Uno	Mega	101	Wemos D1 Pro + Wifi
Revision	R3	R3	R1	R2
CPU	ATmega328	ATmega2560	Intel Curie	Ensilica 32-bit RISC CPU Xtensa LX106
Flash memory	32 KB	256 KB	196 KB	4 Mbytes
Voltage	5.10 V	5.10 V	5.10 V	3.3 V
Power consumption	734 mW	403 mW	336 mW	500 mW
Clock speed	16 Mhz	16 Mhz	32 Mhz	80 MHz/160 MHz
Power/speed	46 mW/Mhz	26 mW/Mhz	11 mW/Mhz	6.25 mW/MHz/3.125 mW/MHz
Digital I/O pins	14	54	14	11
Analog in pins	6	16	4	1
Weight (g)	25	37	34	9.07
Cost (€)	2.82	11.20	37.60	5.60