Ra-08H specification V1.1.0 Ra-08H Specification Version V1.1.0 Copyright 2022 Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 1 of 24 Document resume Ra-08H specification V1.1.0 Version Date Develop/revise content Edition Approve V1.1.0 2022.1.22 First Edition ShengXin Zou Ning Guan Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 2 of 24 Ra-08H specification V1.1.0 Content 1. Product Overview ..................................................................................................................... 4 1.1. Characteristic ................................................................................................................. 5 2. Main parameters ....................................................................................................................... 6 2.1. Static electricity requirements ....................................................................................... 7 2.2. Electrical characteristics ................................................................................................ 7 2.3. Digital port characteristics ............................................................................................ 8 2.4. RF parameters ............................................................................................................... 8 3. Appearance dimensions ............................................................................................................ 9 4. Pin definition .......................................................................................................................... 10 5. Schematic ............................................................................................................................... 12 6. Design Guide .......................................................................................................................... 14 6.1. Module Application Guidance Circuit ........................................................................ 14 6.2. Antenna Interface ........................................................................................................ 15 6.3. Power supply ............................................................................................................... 15 6.4. GPIO............................................................................................................................ 16 7. Common issues ...................................................................................................................... 17 8. Flow welding curve diagram .................................................................................................. 18 9. Product related models ........................................................................... 10. Product packaging information ............................................................................................ 19 11. Contact us ............................................................................................................................. 19 Disclaimer and copyright notice ................................................................................................ 20 Notice ......................................................................................................................................... 20 Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 3 of 24 Ra-08H specification V1.1.0 1. Product Overview Ra-08 is an LoRa module designed and developed by Shenzhen Ai-Thinker Technology Co., Ltd. The module is used for ultra-long distance spread spectrum communications. Its chip ASR6601 is a universal LPWAN wireless communication SOC, integrated with RF transceivers, modems, and a 32-bit RISC MCU. The MCU adopts an ARM core with a working frequency of 48MHz. The Ra-08 module supports LoRa modulation and traditional (G) FSK modulation under the LPWAN. At the same time, the transmitter also supports BPSK modulation and (G) MSK modulation, receiver support (G) MSK modulation. The Ra-08 module provides long-range and ultra-low power communications for LPWAN applications, which can be widely used in smart meters, supply chain and logistics, home building automation, security system, remote irrigation system and other scenes. Figure 1 Main chip architecture diagram Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 4 of 24 Ra-08H specification V1.1.0 1.1. Characteristic Adopt SMD-18 package Support frequency: 803MHz ~930MHz Working voltage is 3.3V, theoretical maximum transmit power: +22dBm High sensitivity: -138dBm @125Kz SF12 Support spread spectrum factor: SF5/SF6/SF7/SF8/SF9/SF10/SF11/SF12 Embedded memory, 128KB FLASH,16KB SRAM Support LoRa/(G)FSK/BPSK/(G)MSK modulation Antenna interface is compatible with stamp holes / circular holes and IPEX, etc., support more option selection Support multiple sleep modes: depth sleep current is low to 0.9uA Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 5 of 24 Ra-08H specification V1.1.0 2. Main parameters Table 1 Description of the main parameters Model Ra-08H Package SMD-18 Size 16.0*16.0*3.2(0.2)mm Antenna half-hole pad / through-hole pad / IPEX Frequency 903-927MHz
-40 ~ 85 Operating temperature Storage temperature Power supply Voltage 2.7V ~ 3.6V, Current >500mA
-40 ~ 125 , < 90%RH Interface UART/GPIO/ADC/DAC/I2C/I2S/SPI/PWM IO IO2,IO4,IO5,IO8,IO9,IO11,IO14,IO15 UART rate Support 110 ~ 4608000 bps, Default 115200 bps Crystal frequency 32MHz SPI Flash 128KB Transfer Protocol LoRaWAN, LinkWAN Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 6 of 24 2.1. Static electricity requirements Ra-08H is an electrostatic sensitive device, and special precautions must be taken when handling it. Ra-08H specification V1.1.0 Figure 2 ESD anti-static diagram 2.2. Electrical characteristics Table 2 Electrical characteristics table Parameter Name Min. Typical value Max. Unit Remark Operating temperature Supply voltage Power consumption TOPR
-40 25 85 VDD 2.7 3.3 3.6 V 3.3V can guarantee output power Sleep mode Power consu mption 1 Power consu mption 2 Operation mode Full load mode TX:21dBm Receive mode RX:SF10
0.9 1.3 3.83 115 9.5
uA 0.9uA@Without RF/MCU Retention, Without RTC uA mA mA mA 1.3uA@With RF/MCU Retention and RTC Power on DC-DC mode DC-DC mode Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 7 of 24 Ra-08H specification V1.1.0 Max. Unit 3.6 0.2
0.1
2.3. Digital port characteristics Table 3 Digital port port name Min. IO level Enter logic level low Enter logic level high VIO VIL VIH Output logic level low VOL Output logic level high VOH 2.7
0.8
0.9 Typical value 3.3
2.4. RF parameters Table 4 RF parameters Output Power Mode Frequency band Min. Typical value Max. Transmit power 433MHz Transmit power 470MHz Transmit power 490MHz Transmit power 510MHz
21 21 21 21
Receive sensitivity modulation bandwidth 125kHz Mode SF7 SF8 SF9 SF10 SF11 SF12 Min. Typical value Max.
-123
-126
-128
-131
-135
-138
V V V V V Unit dBm dBm dBm dBm Unit dBm dBm dBm dBm dBm dBm Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 8 of 24 3. Appearance dimensions Ra-08H specification V1.1.0 Front Back Figure 3 Appearance diagram pictures (for reference only) Front Back Figure 4 Module size diagram Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 9 of 24 4. Pin definition Ra-08H has a total of 18 interfaces. As shown in below pin diagram, the pin function definition table is the interface definition. Ra-08H specification V1.1.0 Figure 5 Schematic diagram of module pins Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 10 of 24 No. 117 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 Table 6 Pin function definition table Ra-08H specification V1.1.0 Name GND IO8 IO11 IO9 IO4 IO5 SWCLK SWDIO VCC Function Ground GPIO8/ADC_IN1 GPIO11/ADC_IN0 GPIO9/DAC_OUT GPIO4/SSP1_CLK GPIO5/SSP1_NSS GPIO7/SWD_CLK GPIO6/SWD_DATA 3.3V power supply, recommended supply current500mA LPRXD GPIO60/LPUART-RX, Communication serial port TXD RXD0 IO15 IO14 IO2 RST ANT GPIO17/UART TX GPIO16/UART RX, Burning port GPIO15/I2C_SDA GPIO14/I2C_SCL GPIO2/BOOT RSTN_IN external reset, low power is effective Antenna interface Table 7 Module Start Mode Description Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 11 of 24 Ra-08H specification V1.1.0 System start mode Pin IO2 Default SPI startup mode drop down 0 Download start mode 1 Note: Some pins have been pulled inside, please refer to the schematic. 5. Schematic Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 12 of 24 Ra-08H specification V1.1.0 Figure 6 Module Schematic Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 13 of 24 6. Design Guide 6.1. Module Application Guidance Circuit Ra-08H specification V1.1.0 It is recommended to use DC-DC or LDO to use independently, current is greater than 500mA Figure 7 application circuit diagram Notice:
IO2 is in normal operating mode for starting control feet, low levels, and at high levels are in a burning firmware mode. The internal default is low. U0RX is a burning serial port, LPRXD is a communication serial port, and select it according to the requirements. Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 14 of 24 Ra-08H specification V1.1.0 6.2. Antenna Interface The Ra-08 module requires an external antenna. The antenna has three wiring methods, compatible with a half-hole pad, a through hole pad, and an IPEX. A standard IPEX seat interface is left on the module. The size map of the IPEX seat is as follows:
Figure 8 board end IPEX seat size diagram 6.3. Power supply Recommend 3.3V voltage, current peak 500mA It is recommended to use LDO power; if the recommended ripple is within 30mV using DC-DC The DC-DC power supply circuit recommends that the position of the dynamic response capacitor can be optimized when the load changes, and the output ripple is optimized. 3.3V power interface suggestion increase ESD devices Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 15 of 24 Ra-08H specification V1.1.0 Figure 9 DC-DC step-down circuit diagram 6.4. GPIO The outer circumference of the module has taken some IO ports, and if you need to use it is recommended on the 10-100 ohms on the IO port. This can suppress overshoot, so that the two levels are more stable. Help for EMI and ESD. The top and pull-down of the special IO port will refer to the instructions of the specification, which will affect the startup configuration of the module. The IO port of the module is 3.3V. If the main control is not mismatched with the IO level of the module, it is necessary to increase the level conversion circuit. If the IO port is directly connected to the peripheral interface, or the pin and other terminals are recommended to reserve ESD devices at the IO port trace. Figure 10 Level conversion circuit Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 16 of 24 Ra-08H specification V1.1.0 7. Common issues 7.1. Effect of transmission distance factors 1When there is a straight communication barrier, the communication distance will attenuate 2Temperature, humidity, same frequency interference, can cause communication packet loss rate 3Ground absorption, reflective radio waves, close to the ground test effect 4Seawater has a very strong absorption of radio wave, so the test effect is poor in seaside. 5There are metal objects near the antenna, or in the metal shell, the signal attenuation is very serious 6Power register setting error, the air rate is too high (the higher the air rate, the closer distance) 7Low pressure at room temperature is lower than the recommended value, the lower the voltage, the smaller the power 8Use antenna and module matching degree or antenna itself quality problem 7.2. Attention item for using module 1Check the power supply, make sure that between the recommended supply voltage. If the power supply exceeds the maximum, the module is permanently damaged. 2Check the power stability, the voltage cannot fluctuate significantly. 3Make sure the installation process anti-static operation, high frequency device electrostatic sensitivity. 4Make sure the installation process is not too high, some components are humidity sensitive devices. 5If there is no special demand, it is not recommended to use in too high or too low temperatures. 7.3. Factors that cause interference to the module
(1) If there are similar signal interference nearby, pls away from interference or modified frequencies, channel avoidance interference Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 17 of 24 Ra-08H specification V1.1.0
(2) If the clock waveform is not standard on the SPI, please check if there is interference on the SPI line, and the SPI bus line should not be too long.
(3) Power supply is not ideal or may result in garbled, be sure to ensure the reliability of the power supply.
(4) Extending the line, the quality is poor or too long, and the error rate is high. 8. Flow welding curve diagram Figure 11 Flow welding diagram Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 18 of 24 9. Product packaging information Ra-08H module was packaged in a tape, 750pcs/ reel. As shown in the below image:
Ra-08H specification V1.1.0 Figure 12 Package and packing diagram 10. Contact us Ai-Thinker official websiteOffice forumDevelop DOCSLinkedInTmall shopTaobao shopAlibaba shop Technical support emailsupport@aithinker.com Domestic business cooperationsales@aithinker.com Overseas business cooperationoverseas@aithinker.com Company AddressRoom 403,408-410, Block C, Huafeng Smart Innovation Port, Gushu 2nd Road, Xixiang, Baoan District, Shenzhen. Tel+86-0755-29162996 Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 19 of 24 Ra-08H specification V1.1.0 Disclaimer and copyright notice The information in this article, including the URL address for reference, is subject to change without notice. The document is provided "as is" without any guarantee responsibility, including any guarantee for merchantability, suitability for a specific purpose, or non-infringement, and any guarantee mentioned elsewhere in any proposal, specification or sample. This document does not bear any responsibility, including the responsibility for infringement of any patent rights arising from the use of the information in this document. This document does not grant any license for the use of intellectual property rights in estoppel or other ways, whether express or implied. The test data obtained in the article are all obtained from Ai-Thinker's laboratory tests, and the actual results may vary slightly. All brand names, trademarks and registered trademarks mentioned in this article are the property of their respective owners, and it is hereby declared. The final interpretation right belongs to Shenzhen Ai-Thinker Technology Co.,Ltd. Notice Due to product version upgrades or other reasons, the contents of this manual may be changed. Shenzhen Ai-Thinker Technology Co.,Ltd. reserves the right to modify the contents of this manual without any notice or prompt. This manual is only used as a guide.Shenzhen Ai-Thinker Technology Co.,Ltd. makes every effort to provide accurate information in this manual. However, Shenzhen Ai-Thinker Technology Co.,Ltd. does not guarantee that the contents of the manual are completely free of errors. All statements and information in this manual and the suggestion does not constitute any express or implied guarantee. Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 20 of 24 Ra-08H specification V1.1.0 Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules The Ra-08H is an LoRa Module with digitally modulated systems using an LoRa/FSK/OOK modulation. It operates on the 903-927MHz band and, therefore, is within U.S. FCC part 15.247 standard 2.3 Specific operational use conditions The EUT is a LoRa Module Operation Frequency: 903-927MHz Modulation Type: LoRa/FSK/OOK Number Of Channel: 25CH Antenna Designation: Spring Antenna Antenna Gain: 2.0dBi Ai-Thinker lora Series Module (Ra-08H ) designed and developed by Ai-Thinker .This module is used for long distance spread spectrum communication. Its RF chip ASR6501as show as figure 1Mainly used LoRaTM remote modem, for ultra-long-distance spread spectrum communication, strong anti-interference, can minimize current consumption. With the help of the SEMTECH the patent technology of LoRaTM, ASR6501 with -137dBm high sensititive, long range transmission, high reliablity. Meantime, relative traditional modulation technique, LoRaTM modulation technique has obvious advantages in anti-blocking and selection, It solves the problem that traditional design scheme canot consider distance, anti-interference and power consumption simultaneously. Its application can be automatic meter reading, home building automation, security system, remote irrigation system. 2.4 Limited module procedures not applicable; Single Modular Approval Request 2.5 Trace antenna designs Not applicable;
2.6 RF exposure considerations To maintain compliance with FCCs RF Exposure guidelines, This equipment should be installed and Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 21 of 24 Ra-08H specification V1.1.0 operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna. 2.7 Antennas The Ra-08H is an LoRa Module beams signals and communicates with its antenna, which is Spring Antenna. The Spring Antenna gain is 2.0dBi. Antenna could not be in no-load state when module is working. During debugging, it is suggested to add 50 ohms load to the antenna port to avoid damage or performance degradation of the module under long-time no-load condition. 2.8 Label and compliance information The final end product must be label in a visible area with the following Host must Contains FCC ID:2ATPO-RA08H. If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be available on the label: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference and
(2) this device must accept any interference received, including interference that may cause undesired operation. 2.9 Information on test modes and additional testing requirements Data transfer module demo board can control the EUT work in RF test mode at specified test channel. Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 22 of 24 2.10 Additional testing, Part 15 Subpart B disclaimer The module without unintentional-radiator digital circuit, so the module does not required an evaluation by FCC Part 15 Subpart B. Ra-08H specification V1.1.0 The host should be evaluated by the FCC Subpart B. ATTENTION This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) This device and its antenna(s) must not be colocated with any other transmitters except in accordance with FCC multi transmitter product procedures. Referring to the multitransmitter policy, multiple transmitter(s) and module(s) can be operated simultaneously without C2P. 3) For all products market in US, OEM has to limit the Operating Frequency: 903-927MHz by supplied firmware programming tool. OEM shall not supply any tool or info to the enduser regarding to Regulatory Domain change. USERS MANUAL OF THE END PRODUCT:
In the user manual of the end product, the end user has to be informed to keep at least 20cm separation with the antenna while this end product is installed and operated. The end user has to be informed that the FCC radiofrequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to also be informed that any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. If the size of the end product is smaller than 8x10cm, then additional FCC part 15.19 statement is required to be available in the users manual: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference and
(2) this device must accept any interference received, including interference that may cause undesired operation. FCC WARNING This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generate, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 23 of 24 If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Ra-08H specification V1.1.0
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help. Copyright 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved Page 24 of 24