ML601 Embedded low power consumption LoRa module manual 0V1 Date June 21st,2021 Author Version Note Yebing Wang V0.1 First edition, modules’ definition of hardware and request of function.
1 Introduction 1.1 The ASR6601 is a LoRa soc chip. The interior is implemented by core of Cortex M4 with softeware core of Semtech' s LoRa transceiver SX1262 . The module can achieve 868(for EU)/915Mhz frequency band communication. The module implements the LoRa device with CLASS A,B,C protocol, DTU and various private protocols. Class A,B,C protocol is nonstandard Lorawan protocol and is only suitable for our gateway.
Hardware introduction 3.1 Outline of module Notes for Hardware design: 1.Try to supply the module using separate power supplies with low noise LDO such as SGM2033. 2. The supply current of module must be >120mA, not include the rest system current.
3.2 The definition of pin Pin number 1 2 Name GND GPIO33 Type Power O Description System GND This IO function is high output at module wake up and IO low during hibernation. For 9V battery power supply cases, for low power consumption. Power is supplied by LDO when the module is dormant and by DCDC when the module wakes up. External LED, usually high, put low when lighting.
10 SWC GPIO07 O 11 VCC O 12 13 GND UART0_RX GPIO16 UART0_TX GPIO17 IIC0_SCL GPIO14 IIC0_SDA GPIO15 /RST GPIO09 GPTIM1_CH1 GPIO5 ADC2 ADC3 GPIO04 LPUART_RX GPIO60 LPUART_TX GPIO47 OPA0_INP GPIO45 Power IO 24 OPA0_INN GPIO44 A/IO 25 OPA0_OUT GPIO10 A/IO 27 28 29 GND ANT GND Power RF Power 14 15 16 17 18 19 20 21 22 23 IO IO IO O O IO/A A/IO IO IO A/IO Simulator debugging SWC （pull-down） IO Power input 3.
3.3 Hardware size 3.4 Electrical character Parameter Condition Minimum Working voltage 3 Working current Continuous send dormant current RTC work 3.5 Reference design Normal 3.3 120 2 Maximum Unit 3.
4. Parameter of function. 4.1 Support wireless transmission 4.2 Changeable serial port rate and test bit 4.3 Support for transmission data encryption and decryption 4.4 Support for frequency and rate setting 4.5 Support the selective preservation of setting parameters. The MCU control module does not need to be saved, and it is used separately as a transmission module 4.6 Support the use of external MCU control modules and independent modules 4.
7 AT instruction (Note: Sending the command needs to return the line and return the AT command to return the line) 7.1，Enter into AT instruction mode Serial port Format Note The start and end byte of a frame must be with a ending with three consecutive ‘+’+"\r\n", send a Send +++ character ‘a’ between10ms to 1s The 'a' must end with the frame start byte + "\ r \ n" and if the + + 'character is not received in module 1S, the' + Send a + +'is issued as a data transmission Return AT+ENAT=OK Enter into comman
7.4， Set the Lora rate Serial port Send Return Send Return Format AT+RATE=7 AT+RATE=OK AT+RATE=ERR AT+RATE=? AT+RATE=7 Note 7(5470bps) /8(3125bps) /9(1760bps)optional Default ：7 Correct return Wrong return Inquiry 7.
7.7, Set up the key Fixed 16 bytes and 16 decimal numbers (16 characters) with the encryption key to resolve the data correctly.Query is not supported. Serial port Send Return Send Return Format AT+DATAKEY=Qqert,91234567890 AT+DATAKEY=OK AT+DATAKEY=ERR AT+DATAKEY=? AT+DATAKEY=ERR Note Support for numbers, English, and English characters. Default：All 0 Correct return Wrong return Inquiry 7.8, Save the parameters set above Note: Perform this command to save the previously set AT instruction parameters.
8. Restores the default serial port rate 38400 and no checked GPIO37 pin holding low level above 2S can restore the default serial port rate and return to AT + BAUD=38400,0 + return line. Please take attention that changes or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with Part 15 of the FCC Rules.
