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E28-2G4M12S User Manual

SX1280 2.4GHz SMD Wireless Module

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Summary of Contents for E28-2G4M12S

Page 1: ...E28 2G4M12S User Manual SX1280 2 4GHz SMD Wireless Module ...

Page 2: ... parameter 3 3 Size and pin definition 4 4 Basic operation 5 4 1 Hardware design 5 4 2 Software editing 5 5 Basic application 6 5 1 Basic circuit diagram 6 6 FAQ 6 6 1 Communication range is too short 6 6 2 Module is easy to damage 7 6 3 BER Bit Error Rate is high 7 7 Production guidance 7 7 1 Reflow soldering temperature 7 7 2 Reflow soldering curve 8 8 E28 Series 8 9 Antenna guidance 9 9 1Antenn...

Page 3: ...evelopment based on their own demands SX1280 also integrates time of flight for ranging functions Since the module is a pure RF transceiver module you need to use the MCU driver or a dedicated SPI debug tool 1 2 Features Communication distance tested is up to 3km Maximum transmission power of 18mW software multi level adjustable Compatible with BLE protocol Support the global license free ISM 2 4G...

Page 4: ... temperature 40 85 Industrial design Operating frequency MHz 2400 2430 2500 Support ISM band Power consumpti on TX current mA 45 Instant power consumption RX current mA 10 Sleep current μA 2 0 Software is shut down Max Tx power dBm 12 12 5 14 Receiving sensitivity dBm 126 128 130 air data rate 595kbps Air data rate LoRa24 bps 0 476k 202K Programming FLRC bps 130k 1 3M Programming FSK bps 125k 2M P...

Page 5: ...quest transmitting pin 6 NSS_CTS Input Modulechip selection pin used to start a SPI communication and can be used as UART clearing transmitting pin refer to SX1280 Datasheet 7 GND Ground connecting to power supply referenceground 8 GND Ground connecting to power supply referenceground 9 NRESET Input Chip reset initiation input pin valid under low level built in 50k pull up resistor 10 BUSY Output ...

Page 6: ...r it is wrong to randomly route over the Bottom Layer or other layers which will affect the module s spurs and receiving sensitivity to varying degrees It is assumed that there are devices with large electromagnetic interference around the module that will greatly affect the performance It is recommended to keep themaway from the module according to the strength ofthe interference If necessary app...

Page 7: ...d 5 Basic application 5 1 Basic circuit diagram 6 FAQ 6 1 Communication range is too short The communication distance will be affected when obstacle exists Data lose rate will be affected by temperature humidity and co channel interference The ground will absorb and reflect wireless radio wave so the performance will be poor when testing near groun d Sea water has great ability in absorbing wirele...

Page 8: ...perature 6 3 BER Bit Error Rate is high There are co channel signal interference nearby please be away from interference sources ormodify frequency and channel to avoid interference Poor power supply may cause messy code Make sure that the power supply is reliable The extension line and feeder quality are poor or too long so the bit error rate is high 7 Production guidance 7 1 Reflow soldering tem...

Page 9: ... Electronic Technology Co Ltd 8 7 2 Reflow soldering curve 8 E28 Series Model No IC Frequency Hz Tx power dBm Test distance km Package Size Antenna E28 2G4M20S SX1280 2 4G 20 6 SMD 15 26 5 IPEX PCB E28 2G4M12S SX1280 2 4G 12 5 3 SMD 25 14 IPEX PCB E28 2G4T12S SX1280 2 4G 12 5 3 SMD 17 5 28 7 IPEX PCB ...

Page 10: ... antennas for wireless modules with excellent performance and reasonable price Model No Type Frequency Hz Interface Gain dBi Height Cable Function feature TX2400 NP 5010 FCB antenna 2 4G SMA J 2 50 10mm FPC soft antenna TX2400 XP 150 Sucker 2 4G SMA J 3 5 15cm 150cm Sucker antenna High gain TX2400 JK 20 Rubber 2 4G SMA J 3 200mm Flexible omnidirectional TX2400 JK 11 Rubber 2 4G SMA J 2 5 110mm Fle...

Page 11: ...Initial version huaa 1 10 2018 5 23 Content updated huaa 1 20 2018 9 21 ModelNo split Huaa About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you for using Ebyte products Please contact us with any questions orsuggestions info cdebyte com Fax 028 64146160 ext 821 Web www ebyte com Address Innovation Center D347 4 XI XIN Road Chengdu Sichuan Ch...

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