Ebyte E220-900T22S User Manual
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Ebyte E220-900T22S User Manual

Ebyte E220-900T22S User Manual

868/915mhz 22dbm new generation lora
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E220-900T22S User Manual
868/915MHz 22dBm New Generation LoRa Wireless Module

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Summary of Contents for Ebyte E220-900T22S

  • Page 1 E220-900T22S User Manual 868/915MHz 22dBm New Generation LoRa Wireless Module...

  • Page 2: Table Of Contents

    10.2 Module is easy to damage.............................19 10.3 BER (Bit Error Rate) is high..........................19 11. Soldering Operation Guidance............................20 11.1 Reflow Soldering Temperature..........................20 11.2 Reflow Soldering Curve............................20 12. Related Models................................21 13. Antenna Recommendation..............................21 Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 3 Chengdu Ebyte Electronic Technology Co., Ltd. E220-900T22S User Manual 14. Package for Bulk Order..............................22 Revision History................................... 22 About us....................................22 Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 4 Chengdu Yibaite Electronic Technology Co., Ltd. does not guarantee that the content of this manual is completely free of errors, and all statements, information and Suggestions in this manual do not constitute any express or implied warranty. Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 5: Overview

    1. Overview 1.1 Introduction E220-900T22S is a new generation of LoRa wireless serial port module (UART), based on Semtech's original LLCC68 chip design. It has a variety of transmission methods, works in the (850.125～930.125MHz) frequency band (default 873.125MHz), LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltage.

  • Page 6: Specifications And Parameters

    Buffer 400 Byte Modulation LoRa New generation LoRa modulation technology Communication interface UART TTL Level Package Connector 1.27mm Stamp hole Size 16*26 mm Antenna IPEX/stamp hole 50 ohm impedance Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 7: Size And Pin Definition

    Chengdu Ebyte Electronic Technology Co., Ltd. E220-900T22S User Manual 3. Size and Pin Definition Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 8 The user wakes up the external MCU and outputs low level during power-on self-check initialization; (can be left floating) Power supply: 2.3~ 5.2V DC Ground Empty Pin Ground Empty Pin Empty Pin Empty Pin Empty Pin Empty Pin Ground Ground Antenna Ground Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 9: Connect To Mcu

    The wireless serial port module is TTL level, please connect with TTL level MCU. For some MCU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin. Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 10: Function Description

    Chengdu Ebyte Electronic Technology Co., Ltd. E220-900T22S User Manual 5. Function Description 5.1 Fixed Transmission 5.2 Broadcasting Transmission Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 11: Broadcasting Address

    5.6.2 Indication of wireless transmitting Buffer empty: the data in the internal 400-byte buffer is written to the wireless chip (automatic sub-packaging);  When AUX=1, the user continuously initiates data less than 400 bytes without overflow; Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 12: Configuration Procedure Of Module

    FSK. For example, at 2.4kbps airspeed, the 100-byte transmission delay is about 1.5 seconds. It is recommended that customers do not transmit large amounts of data at low airspeeds. , So as to avoid communication abnormalities caused by data loss due to data accumulation. Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 13: Operating Mode

    This operation mode is very flexible and efficient, and is designed according to the user's MCU's operation convenience,  and can reduce the workload of the entire system as much as possible, improve system efficiency, and reduce power consumption. Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 14: Normal Mode（Mode 0

    When from the sleep mode to other modes, the module will reconfigure the parameters. During the configuration process, Note AUX will remain low; After configuration, it outputs high level, we suggest that user test rising edge T_BUSY. Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 15: Register Read And Write Control

    FF FF FF 7.2 Register Description Read Address Name Description Remark Write High byte and low byte of module address; Read/ ADDH ADDH（default 0） Write Note: When the module address is equal to FFFF, Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 16 Return: C1 + address + read length + read valid value; for example: send C0 C1 C2 C3 00 01 (address can only start Return C1 00 01 RSSI from 00) Reserve Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 17: Factory Default Parameter

    7.3 Factory Default Parameter Model Factory default parameter：c0 00 00 62 00 17 Model No. Frequency Address Channel Air Rate Baud Rate Serial Format Power E220-900T22S 873.125MHz 0x0000 0x17 2.4kbps 9600 22dbm Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 18: Configuration Instruction On Computer

    E220-900T22S User Manual 8. Configuration Instruction on Computer The following figure shows the display interface of the E220-900T22S configuration host computer. The user can switch to the  command mode through M0 and M1, and quickly configure and read the parameters on the host computer.

  • Page 19: Hardware Design

    When the module is installed inside the case, a high-quality antenna extension cable can be used to extend the antenna to the  outside of the case; The antenna must not be installed inside the metal shell, which will greatly reduce the transmission distance.  Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 20: Faq

    Unsatisfactory power supply may also cause garbled codes. Ensure the reliability of the power supply;  Poor or too long extension cables and feeders can also cause high bit error rates.  Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 21: Soldering Operation Guidance

    60-90 sec 30-90 sec Peak temperature（Tp） 220-235℃ 230-250℃ Aveage ramp-down rate（Tp to Tsmax） 6℃/second max 6℃/second max Time 25℃ to peak temperature 6 minutes max 8 minutes max 11.2 Reflow Soldering Curve Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

  • Page 22: Related Models

    Rubber Antenna 915M SMA-J omnidirectional antenna 915M SMA-J Bendable rubber, TX915-JK-11 Rubber Antenna omnidirectional antenna 915M SMA-J Bendable rubber, TX915-JK-20 Rubber Antenna omnidirectional antenna 915M Small suction antenna, TX915-XPL-100 Suction Antenna SMA-J cost-effective Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.
  • Page 23 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 or suggestions: info@cdebyte.com ------------------------------------------------------------------------------------------------- Official hotline:028-61399028 Web: www.ebyte.com Address: , Building B5, Mould Industrial Park, 199# Xiqu Ave, High-tech Zone, Chengdu, 611731, Sichuan, China...

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