Research Article
FPGA Based Single Chip Solution with 1-Wire Protocol for the Design of Smart Sensor Nodes
Figure 8
Experimental setup of the sensor node: (1) Xilinx XCS250E FPGA, (2) cables to power the FPGA board, (3) USB programming cable, (4) cables to power the FPGA board sensors, (5) UART interface to connect XBee device, (6) 1-wire interface, (7) RS232 sensor interface to connect the pH kit, (8) Atlas Scientific pH circuit, (9) BNC connector, (10) DS18B20 sensor connector, (11) XBee device, (12) battery pack, (13) Atlas Scientific pH probe, and (14) waterproof DS18B20 temperature sensor.