DL-20 CC2530 Wireless Serial Port Module ZigBee Wireless Transparent Transmission/2.4G Data Transceiver/No Development -67193
product detail
Product Parameters:

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Default setting: baud rate 9600, point to point
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Wiring sequence: Rx is connected to Tx, Tx is connected to Rx
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Voltage range: 3.0V~5.5V, TTL level adaptive
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Button configuration: Use the onboard buttons to set up, you can modify the channel, baud rate and working mode of the module.
Schematic:
Dimensions:
Interface Schematic:

