US$ 140.99
and bias voltage availability
Home automation temperature monitoring
GND) from the HC-SR04 to your Arduino
select the voltage rating that provides 50-60% safety margin above your circuit's actual operating voltage
CoolTerm) to read sensor data
LT-736 Quick Connection, Terminal Soil Moisture Sensor Module and bias voltage availabilityLT 736 Quick Connection, Terminal
US$ 140.99
US$ 48.00
US$ 64.50
US$ 248.00
US$ 110.00
US$ 43.99
US$ 94.00