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9V battery with a battery cap
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HC-12 Wireless RF UART Communication Module Gear Motors 9V battery with a batteryHC 12 Module Wireless RF UART Communication Module The HC 12 wireless RF UART communication module is a next generation wireless data transmission module for embedded systems. It operates on a radio frequency range of 433. 4 473. 0MHz and can be configured to use any of its 100 communication channels, with each channel having a step size of 400kHz. The module has a maximum transmit power of 100mW (20dBm) and can receive signals as low as 116dBm with a
US$ 367.40
US$ 151.95