Pay in 4 interest-free payments of $38.75 Learn more
Ships within 48 hours · Estimated delivery Sep 12 - Sep 17
flood alert systems
Check the pin labels on the PIR Motion Sensor HC SR505 and match them to your controller voltage
6-20V unregulated external power supply (pin 30)
Product Excavator Tank Robot Chassis Brand Circuitrocks Product Type Robot Chassis Primary SKU RBP94521C Key Specs 24
The Feather 32u4 Bluefruit LE uses the extra space left over to add our excellent Bluefruit BTLE module + two status indicator LEDs
DFRobot Relay Module V3.1 - Arduino-Compatible 5V Relay standard servo flood alert systemsSimple Load Switching for Arduino, ESP32, and Automation Builds The DFRobot Relay Module V3. 1 Arduino Compatible 5V Relay is a practical relay module from DFRobot for students, makers, and repair friendly builds. It fits well in projects that need switching external loads, while keeping setup straightforward for testing and prototype work. Compared with generic parts, this product stands out through details such as 5V. That makes it a solid choice
US$ 70.66
US$ 81.79
US$ 223.00
US$ 17.00
