US$ 29.00
a spread-spectrum technique that achieves extended range (up to 10km in open space) while consuming minimal power
55-inch AMOLED Display Resolution 454 x 454 pixels Band Material Silicone Dial Color Black Water Resistance 5 ATM (50 meters) Battery Life Up to 14 days typical use Processor Dual-core RAM 512 MB Operating System Zepp OS Sensors Heart rate
No external resistors or driver circuits are needed - just connect to your digital or PWM-capable GPIO pins
Because no metal is exposed to the soil
M5Stack RF UNIT 433MHz Receiver - SYN513R Raspberry Pi Clear Transparent Case for Raspberry Pi 2 and Raspberry Pi 3 a spread-spectrum technique that achievesM5Stack RF UNIT 433MHz Receiver SYN513R
US$ 29.00
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US$ 190.00
US$ 44.00
US$ 32.00