Industrial serial port bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port
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jdy-34 2.4g dual mode spp spp-c
Bluetooth Module HC-06
Real-time clock - Wikipedia
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Alternatives · joric/nrfmicro Wiki · GitHub
HC-06 Bluetooth Module : With this HC-06 Bluetooth Board, You can quickly complete your small Bluetooth test. For example, you can make a Bluetooth LED, or a Bluetooth switch. Through this, you can better understand the Bluetooth technology.
DSD Tech HC-06 Bluetooth 2.0 SPP Wireless BT Module for Uno R3 Nano (Basic Version)
Bluetooth Module HC-06 with 4pin header
HC-06 Bluetooth Module - SriTu Hobby
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