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Table of Contents
Related Manuals for Ebyte E28-2G4M27S
Summary of Contents for Ebyte E28-2G4M27S
- Page 1 E28-2G4M27S User Manual SX1280 2.4GHz 27dBm SPI High Speed LoRa Module...
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Page 2: Table Of Contents
7.1 Reflow Soldering Temperature ..............................8 7.2 Reflow Soldering Curve ................................8 8 E28 Series ........................................9 9 Antenna Guidance ......................................9 9.2 Antenna selection .................................... 9 Revision history ......................................10 About us ........................................... 10 Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 3: Product Overview
& etc. E28-2G4M27S is a hardware platform without firmware, so users need to conduct secondary development. 1.2 Feature ⚫... -
Page 4: Technical Parameters
Test condition：clear and open area, antenna gain: 5dBi，antenna Distance 8000m height: 2.5m，air data rate: 1kbps FIFO 256Byte Max. Transmitting length per packet ±10ppm/11pF Crystal oscillator 52MHz Modulation LoRa [Recommended] GFSK，FLRC，LoRa Package Connector 1.27mm Interface 0～10Mbps Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 5: Dimension And Pin Definition
Ground, connecting to power source reference ground NRESET Chip reset initiation input pin, valid under low level, built-in 50k pull-up resistor Input BUSY For status indication(refer to SX1280 Datasheet for details) Output DIO1 Input/Output GPIO(refer to SX1280 Datasheet for details) Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 6: Basic Operation
When the module is installed inside the shield, a high-quality antenna extension cable can be used to extend the antenna outside; ⚫ The antenna must not be installed inside the metal case, which will greatly reduce the transmission distance. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 7: Software Editing
It is recommended that the power output parameter of the SX1280 be set to 0dBm. At this time, the module outputs 27dBm. When the output power of the SX1280 is increased, the current will become larger and the power will not increase significantly. 5 Basic Application 5.1 Circuit Diagram Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 8: Faq
⚫ Unfavorable power supply may cause messy code. Make sure that the power supply is reliable. ⚫ Extension line and feeder with poor quality or too long ones will cause high bit error rate. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 9: Production Guidance
Time（tL）Maintained Above（TL） 60-90 sec 30-90 sec Peak temperature（Tp） 220-235℃ 230-250℃ 6℃/second max 6℃/second max Aveage ramp-down rate（Tp to Tsmax） Time 25℃ to peak temperature 6 minutes max 8 minutes max 7.2 Reflow Soldering Curve Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 10: E28 Series
Straight antenna,ultra short TX2400-JW-5 Rubber 2.4G SMA-J Fixed bending antenna TX2400-JK-11 Rubber 2.4G SMA-J Flexible antenna，omnidirectional TX2400-JK-20 Rubber 2.4G SMA-J Flexible antenna，omnidirectional TX2400-XPL-150 Sucker 2.4G SMA-J Small sucker antenna，high gain 9.2 Antenna selection PCB（Default） IPEX Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 11: Revision History
Description Operator 2019-02-28 Initial Version 2019-04-04 Content Update About us Website: www.ebyte.com Sales: info@cdebyte.com Support: support@cdebyte.com Tel: +86-28-61399028 Ext. 812 Fax: +86-28-64146160 Address: Innovation Center B333~D347, 4# XI-XIN road,High-tech district (west), Chengdu, Sichuan, China Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.
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