US$ 537.65
and the TX/RX activity LEDs give you immediate visual confirmation that data is being transferred
Complete documentation and schematic
SIM808 Module (with PCB antenna option available)
Technical Help: Free consultation for project setup
YF-S201 Water Flow Measurement Sensor with 1-30Liter/min Flow Rate – Black Raspberry Pi 4 Model B 8 GB RAM and the TX/RX activity LEDsYF S201 Water Flow Measurement Sensor with 1 30Liter min Flow Rate Black
US$ 537.65
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