Ebyte E19 Series Operation & User’s Manual

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 1 Contents Disclaimer..............................................................................................................................................................................2 1. Overview............................................................................................................................................................................3 1.1 Brief introduction................................................................................................................... ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 2 Disclaimer EBYTE reserves all rights to this document and the information contained herein. Products, names, logos and designs described herein may in whole or in part be subject to intellectual property rights. Reproduction, use, modification or disclosure to third parties of this document or any part thereof without the express permission of EBYTE is strictly prohibited. The information contained herein is provided “as is” and EBYTE assumes no liability for the use of the information. No warranty, either e ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 1-3 1. Overview 1.1 Brief introduction E19-915M30S is 1W SMD wireless module working at 915MHz, developed based on chip SX1276 from Semtech. Due to the use of the imported SX1276 as the core of the module, with PA and LNA its sensitivity and stability are largely improved when tx power is 1W.Compared with the FSK、GFSK products, it has made great progress in anti-interference ability and communication distance. The module is aimed at smart home, wireless meter reading, scientific research and medical, and medium ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 1-4 2.Specification and parameter 2.1 Limit parameter Main parameter Performance Remark Min. Max. Power supply（V） 0 5.5 Voltage over 5.5V will cause permanent damage to module Blocking power（dBm） - 10 Chances of burn is slim when modules are used in short distance Operating temperature（℃） -40 85 / 2.2 Operating parameter Main parameter Performance Remark Min. Typ. Max. Operating voltage（V） 3.3 5.0 5.5 ≥5.0 V ensures output power Communication level（V） 3.3 For 5V TTL, it may be at risk of bu ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 1-5 3.Size and pin definition Pin No Pin item Pin direction Pin application 1 GND - Ground electrode, connected to the power reference ground 2 DIO5 Input/Output Configurable IO port（Please find more on SX1276 datasheet） 3 DIO4 Input/Output Configurable IO port（Please find more on SX1276 datasheet） 4 DIO3 Input/Output Configurable IO port（Please find more on SX1276 datasheet） 5 DIO2 Input/Output Configurable IO port（Please find more on SX1276 datasheet） 6 DIO1 Input/Output Configurable IO port（Pl ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-6 12 SCK Input SPI clock 13 MISO Output SPI clock 14 MOSI Input SPI clock 15 NSS Input Chip select 16 TXEN Input Radio frequency switch control, make sure the TXEN pinis in high level, RXEN pin is in low level when transmitting. 17 RXEN Input Radio frequency switch control, make sure the TXEN pinis in high level, RXEN pin is in low level when transmitting 18 GND - Ground electrode, connected to the power reference ground 19 ANT - Antenna 20 GND - Ground electrode, connected to the power reference ground 21 GND - ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-7 can be done.  If the communication line uses a 5V level, a 1k-5.1k resistor must be connected in series (not recommended, there is still a risk of damage)；  Try to stay away from some physical layers such as TTL protocol at 2.4GHz , for example: USB3.0；  The mounting structure of antenna has a great influence on the performance of the module. It is necessary to ensure that the antenna is exposed, preferably vertically upward. When the module is mounted inside the case, use a good antenna extension ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-8 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 ground.  Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea.  The signal will be affe ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-9 6.2 Module is easy to damage  Please check the power supply source, ensure it is 2.0V~3.6V, voltage higher than 3.6V will damage the module.  Please check the stability of power source, the voltage cannot fluctuate too much.  Please make sure antistatic measure are taken when installing and using, high frequency devices have electrostatic susceptibility.  Please ensure the humidity is within limited range, some parts are sensitive to humidity.  Please avoid using modules under too high or too lo ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-10 7.2 Reflow soldering curve 8.E19 Series Model No. IC Frequency(Hz) Tx power (dBm) Test distance km Package Antenna Model No. E19-433M20S2 SX1278 433M 20 5 SMD 15 * 15 Stamp hole E19-915M30S SX1276 915M 30 10 SMD 25 * 40 Stamp hole /IPEX E19-868M30S SX1276 868M 30 10 SMD 25 * 40 Stamp hole /IPEX E19-868M20S SX1276 868M 20 5 SMD 17.6*25.2 Stamp hole E19-433M30S SX1278 433M 30 10 SMD 25*37 Stamp hole E19-915M20S SX1276 915M 20 5 SMD 17.6*25.2 Stamp hole E19-433M20SC SX1278 433M 20 5 SMD 17.6*25.2 Stamp hole ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-11 9.Antenna guidance 9.1 Antenna recommendation The antenna is an important role in the communication process. A good antenna can largely improve the communication system. Therefore, we recommend some antennas for wireless modules with excellent performance and reasonable price. Model No. Type Frequency Hz Interface Gain dBi Height Cable Function feature TX915-XP-100 Sucker 915M SMA-J 3.5 25cm 100cm Sucker antenna, High gain TX915-JK-20 Rubber 915M SMA-J 3 210mm - Flexible &omnidirectiona TX915-JK-11 Rubber 915 ...

E19-915M30S User Manual Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-12 10. Package for batch order Revision history Version Date Description Issued by 1.00 2017/10/16 Initial version huaa 1.10 2018/5/23 Content updated huaa 1.20 2018/9/21 Model No. split Huaa About us Website: www.ebyte.com Sales: [email protected] Support: [email protected] 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 ...