Ai-Thinker RD01 WiFi Ble5.0 Radar Module User Manual

Rd-01Specification
Version V1.1.1
Copyright ©2023

Document resume

Zheng Ma
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Product Overview

Rd-01 is a radar module developed by Shenzhen Anxinke Technology Co., LTD. The module supports Wi-Fi&BLE.
Radar part is equipped with the S3KM111L chip of Sidian Micro. S3KM111L is an integrated monolithic single-wave sensor SoC based on FMCW radar technology. Operates in 24 GHz k band with up to 1 GHz modulation bandwidth per frequency. FMCW continuous wave is used to detect the target in the set space. Combined with radar signal processing and accurate human body sensing algorithm, high sensitivity human presence state sensing can be realized to recognize human body in motion and static state.
Wi-Fi&BLE is equipped with BL602 chip as the core processor and supports Wi-Fi 802.11b/g/n and BLE 5.0.The BL602 chip has a built-in low-power 32-bit RISC CPU, 276KB of RAM and a wealth of peripheral interfaces, including SPI, UART, I2C, PWM, ADC and GPIO.
Rd-01module can sense whether there is a moving or twitching human body in the area, and transmit the detection result in real time through Wi-Fi&BLE. Provide visual configuration tools,it can be easily configured with induction distance range, induction sensitivity of different sections and unmanned delay time.It also supports Wi-Fi&BLE wireless configuration of radar parameters, greatly improving the efficiency of construction and operation and maintenance,
convenient and fast.

1.1. Characteristic

• SMD-12 package, compatible with standard socket or pin interface
• Radar support 24 GHZ ISM frequency band
• The radar’s max sensing range is up to 5 meters
• Radar Angle is big, range of ±60 degrees
• Radar range and accurate recognition, support induction range, shielding range outside interference
• It can realize the intelligent parameter adjustment of radar through Bluetooth, convenient and fast
• Support roof, hang a wall to install a variety of ways
• Supports IEEE 802.11 b/g/n agreement
• Wi-Fi security support WPS/WEP/WPA/WPA2 Personal/WPA2 Enterprise/WPA3
• Support 20 MHZ bandwidth, the highest rate of 72.2 Mbps
• Bluetooth low energy 5.0, Bluetooth Mesh
• Support Station + BLE model、Station + SoftAP + BLE model
• Support 32-bit RISC CPU, 276KB RAM
• Secure startup, supports the use of ECC – 256 signature image
• Support QSPI/SPI Flash instant AES decryption (OTFAD), support AES 128 CTR mode
• Support AES 128/192/ – bit encryption engine
• Support SHA-1/224/256
• Support for real random number generators (TRNG)
• Public key Accelerator (PKA), support the basic operation of large numbers, software
• provides the signature, authentication and so on application program interface
• Support SPI, UART, I2C, PWM, ADC and GPIO etc.
• Integration Wi-Fi MAC/BB/RF/PA/LNA/BT
• Supports a variety of sleep mode
• Supports secondary development, integrated with Windows, Linux development environment
• Assembly way flexible, compatible patch/needle/socket and so on a variety of ways
• Typical application scenario
  √ Human body induction lamp control
  √Advertising screen devices such as the human body induction
  √Life safety protection
  √Smart Application
  √Intelligent security

Main parameters

Table 1 main parameters

Operation
temperature
Storage
environment| -40t — 8512
– 40’2 — 125 t , < 90%RH
Power supply| Support voltage 3.0V — 3.6V, power supply current ..–500tnA
Interfaces| UART/GPIO/ADC/PWM/I2C/SPI
1/0| 8
UART rate| Default 115200 bps
Security| WPS/WEP/WPA/WPA2 Personal/WPA2 Enterprise/WPA3
Flash| Default 2MByte

2.1. Static electricity requirements
Rd-01is an electrostatic sensitive equipment, special precautions should be taken during handling.

2.2. Electrical characteristics
Table 2 Electrical Characteristics Table

2.3. Radar sensing range
Table 3 Radar induced range

2.4. Wi-Fi RF performance
Table 4 Wi-Fi RF performance table

Output power
Model| Min.| Typical| Max.| Unit
11n mode HT20, PA output power| –| 16| –| dBm
11g mode, PA output power| –| 17| –| dBm
11b mode, PA output power| –| 19| –| dBm
Receiving sensitivity
Model| Min.| Typical| Max.| Unit
11b，1 Mbps| –| -98| –| dBm
11b，11 Mbps| –| -90| –| dBm
11g，6 Mbps| –| -93| –| dBm
---|---|---|---|---
11g，54 Mbps| –| -76| –| dBm
11n，HT20 (MCS7)| –| -73| –| dBm

2.5. BLE RF performance
Table 5 BLE RF performance table

Output power
Rate Mode| Min.| Typical value| Max.| Unit
1Mbps| –| 9| 15| dBm
Receiving sensitivity
Rate Mode| Min.| Typical value| Max.| Unit
1Mbps sensitivity @30.8%PER| –| -96| –| dBm

2.6. Power
The following power consumption data is based on a 3.3V power supply and an ambient temperature of 25°C .

• In the test conditions, the following test results are measured in the laboratory room temperature environment based on the self X7 PRO phone and system version V3.0.
  Different phones, system versions, test conditions and test environment may affect the test data. Please refer to the actual use environment.

Table 6 Power consumption in application scenarios

• In the test condition, all transmitted power is completed at the antenna interface.
• All emission data is based on 100% of the duty ratio, measured in continuous emission mode.

Table 7 Wi-Fi power consumption

Appearance size

Figure 4 Appearance diagram (rendering diagram is for reference only, subject to the actual object)

Note: Rd-01 module is available with and without sockets.

• The module with socket can be connected to the motherboard with a row of cables, and the installation position is flexible. Socket using standard 1 * 6 p – 1.25 mm distance between interface, at the same time module of positioning hole can be used for screw fixation.
• Modules without sockets can be SMT to the motherboard, easy to improve assembly efficiency.

Pin definition

Rd-01 connects to a total of 12 interfaces, for example, the pin diagram, the pin function definition table is the interface definition.

Table 8 Definition table of pin functions

external power supply be at least 500mA
Note: 1. GPIO8 is used as Bootstrap. The instant of power-on is high power level, and the module enters the burning mode; The power-on moment is at low power level, and the module starts normally.

Schematic diagram

Design guidance

6.1. Application guide circuit

Note: The IO port is used as PWM. It is recommended to reserve 4.7K pull-down resistance around the module. In particular, the application of the lamp control side prevents the flash phenomenon at the moment of power-on startup.

6.2. Recommended PCB package size

Note: The Rd-01 module supports a variety of interface modes, including 1.25mm standard 6-pin socket interface, 2.0mm standard pin socket interface, and half-hole SMD patch welding.

• Adopts SMD patch welding method, modules in the radar antenna back has components to avoid empty.

6.3. Precautions for radar installation

• In motherboard installation position, it is recommended that the following several ways:
• As far as possible to ensure that the radar antenna is opposite to test area, and the antenna around open without sunscreen.
• ensure that the radar installation position is firm, stable, shaking will influence the effect of detection of radar itself.
• ensure that there won’t be on the back of radar object movement or vibration. Due to the penetrating nature of radar waves, the antenna signal back lobe may detect moving objects on the back of the radar. A metal shield or metal backplane can be used to shield the radar back flap to weaken the influence of objects on the back of the radar.
• The theoretical range accuracy of radar is obtained by special algorithm on the basis of the physical resolution of 0.75m. As target size, condition, different, such as RCS target distance accuracy will fluctuate; And the farthest distances fluctuate a little bit.
• In order to meet the performance of on-board antenna, antenna surrounding prohibited, metal pieces, far away from the high frequency components.

6.4. Installation environment requirements

This product needs to be installed in a suitable environment. If it is used in the following environments, the detection effect will be affected:

• Induction of continuous movement in the area of nonhuman objects, such as animals, sustained oscillation of the curtain, is the outlet of the large strain of green plant, etc.
• induction area exists the strong reflector of large area, strong reflector is of the radar antenna can cause interference.
• When mounting the wall, need to consider the top of the indoor air conditioning, electric fan etc. External interference factors.

6.5. Installation mode and induction range

• Hanging roof installation
• Wall mounting mode

6.6. Power Supply

• Recommended voltage is 3.3V and the peak current is above 500mA.
• Recommended to use LDO as power supply ; If using DC-DC, it is recommended to control ripple within 30mV.
• DC – DC power supply circuit suggested the reserved capacitance position, dynamic response can be large changes in load and optimize the output ripple.
• 3.3V power supply interface increases ESD device is recommended.

6.7. GPIO

• Some IO ports are drawn from the periphery of the module. If necessary, it is recommended to use 10-100 ohm resistors in series on the IO ports. It can suppress overshoot, so make level both sides more smoothly. It helps EMI and ESD.
• Special IO mouth pull up or down, need to refer to instructions on the use of the specification, here will affect the launch configuration module.
• Module IO port is 3.3 V if the master IO mouth level does not match with module, need to increase the level conversion circuit.
• If IO mouth directly connected to the peripheral interface, or terminal, such as row needles, and Suggestions on the IO mouth line near the terminal obligate ESD device

Storage conditions

Products sealed in moisture-proof bags should be stored in a non-condensing atmosphere at <40℃/90%RH.
The module’s moisture sensitivity level MSL is level 3.
After the vacuum bag is unwrapped, it must be used within 168 hours at 25±5℃/60%RH.
Otherwise, it needs to be baked before it can be put on line again.

Reflow welding curve diagram

Product package information

Rd-01 module (without socket) adopts anti-static braids packing, 800pcs/ tray. As shown in the picture below:

**Packing List| ****Packaging method| Quantity per tray (tray)**
---|---|---
Rd-01 module (with socket)| Anti-static transparent PET tray| 25pcs

Contact us

Ai-Thinker official website Tmall shop| Official Forum Taobao shop| Develop DOCS Alibaba shop| LinkedIn
---|---|---|---

Technical support Email: [email protected]
Domestic business cooperation: [email protected]
Overseas business cooperation：[email protected]

Company address: Room 403,408-410, Block C, Huafeng Smart Innovation Port, Gushu 2nd Road, Xixiang, Baoan District, Shenzhen.
Tel: 0755-29162996

http://weixin.qq.com/r/Rjp4YNrExYe6rZ4D929U

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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.

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FCC WARNING
This device complies with part 15 of the 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.
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 generates, uses and can radiate radiofrequency 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. 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:

• 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.

To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and operated with minimum 20cm distance between the radiator and your body: Use only the supplied antenna.

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