Table of Contents
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Table of Contents
Related Manuals for Ebyte E78 Series
Summary of Contents for Ebyte E78 Series
- Page 1 ASR6505 Wireless Module E78 series User Manual...
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Page 2: Table Of Contents
4.2 R EFLOW SOLDERING CURVE 5. FAQ.......................................... 8 ........................8 5.1 C OMMUNICATION RANGE IS TOO SHORT ............................9 5.2 M ODULE IS EASY TO DAMAGE 6. IMPORTANT STATEMENT.................................. 9 REVISION HISTORY....................................9 ABOUT US........................................9 Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 3: General Introduction
E78-400M22S1A User Manual 1. General introduction E78 series are RF transceiver module of various frequency bands designed and manufactured by Chengdu Ebyte, with long communication distance and extremely low power mode current consumption. It is a small-sized SMD type (pin pitch 1.1mm). -
Page 4: Parameter Description
Chengdu Ebyte Electronic Technology Co., Ltd E78-400M22S1A User Manual TCXO crystal voltage configuration Recommended 433/470/490 operating frequency Power supply voltage Communication level 1.2 Parameter description When designing the power supply circuit for the module, it is recommended to reserve more than 30% of the ... -
Page 5: Pin Definition
Chengdu Ebyte Electronic Technology Co., Ltd E78-400M22S1A User Manual 2. Pin definition Name Direction Function Ground wire, connected to the power reference ground LCD-SEG1 Input/output MCU GPIO LCD-SEG1 Input/output MCU GPIO LCD-SEG1 Input/output MCU GPIO LCD-SEG1 Input/output MCU GPIO LCD-SEG1... - Page 6 Chengdu Ebyte Electronic Technology Co., Ltd E78-400M22S1A User Manual LCD-SEG1 Input/output MCU GPIO I2C-SDA Input/output I2C-SDA pin I2C-SCL Input/output I2C-SCL pin ADC-IN0 Input ADC input pin ADC-IN1 Input ADC input pin GPIO2 Input/output MCU GPIO GPIO3 Input/output MCU GPIO GPIO4...
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Page 7: E78-400M22S1A Programming Interface
Chengdu Ebyte Electronic Technology Co., Ltd E78-400M22S1A User Manual UART0-TX output UART0-TX pin LCD-SEG6 Input/output MCU GPIO LCD-SEG7 Input/output MCU GPIO LCD-SEG8 Input/output MCU GPIO LCD-SEG9 Input/output MCU GPIO Power supply, range 2.5V ~ 3.7V (recommended to add external ceramic... -
Page 8: Production Guidance
Chengdu Ebyte Electronic Technology Co., Ltd E78-400M22S1A User Manual The base plate supplies power to the module through the serial port on the left in the picture above. Connect ST-LINK's NRST pin and SWIM pin to the base plate to download the program. As shown below 4. -
Page 9: Reflow Soldering Curve
Chengdu Ebyte Electronic Technology Co., Ltd E78-400M22S1A User Manual 4.2 Reflow soldering curve 5. FAQ 5.1 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. -
Page 10: Module Is Easy To Damage
Please avoid using modules under too high or too low temperature. 6. Important statement EBYTE reserves the right of final interpretation and modification of all contents in this manual. As the hardware and software of the product continue to improve, this manual may be subject to change without ...