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IOT ENVIRONMENT MONITORING
- 1. D7 14 D6 13 D5 12 D4 11 D3 10 D2 9 D1 8 D0 7 E 6 RW 5 RS 4 VSS 1 VDD 2 VEE 3 LCD1 LM016L ANALOG IN ATMEGA328P-PU 1121 Reset BTN ON www.TheEngineeringProjects.com PD0/RXD PD1/TXD PD2/INT0 ~ PD3/INT1/OC2B PD4/T0/XCK ~ PD5/T1/OC0B ~ PD7/AIN1 PC5/ADC5/SCL PC4/ADC4/SDA PC3/ADC3 PC2/ADC2 PC1/ADC1 PC0/ADC0 RESET PB0/ICP1/CLKO ~ PB1/OC1A ~ PB2/OC1B ~ PB3/MOSI/OC2A PD7/AIN1 PB4/MISO PB5/SCK AREF 0 1 2 3 4 5 6 7 8 9 10 11 12 13 A5 A4 A3 A2 A1 A0 ARD1 ARDUINO UNO 40.0 3 1 VOUT 2 U1 TMP36 RV2 1k 98% RV1 1k L1 27uH C1 100u +88.8 Volts Vcc A0 GND Test pH Meter V1.0 www.TheEngineeringProjects.com 80 27 %RH > °C DATA 2 VDD 1 GND 4 U2 DHT11 R1 PULLUP RXD RTS TXD CTS Water Sensor TheEngineeringProjects.com TestPin + S - WATER1 WATER SENSOR 44% RV3 1k C2 100u L2 27nH www.TheEngineeringProjects.com Vcc OUT GND TestPin MQ-2 GAS1 MQ-2 GAS SENSOR 95% RV 1k D1 LED-GREEN D2 LED-BIRY BUZ1 BUZZER