Users Manual

FCC ID: 2ANDL-AUXLM

Users Manual

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FCCID_4251423

Tuya Smart Wi-Fi Module 1. Product Overview AUX_LM is a low power consumption module with Serial Communication of 12V Level to 3.3V Level Wi-Fi connectivity solution designed by Hangzhou Tuya Information Technology Co.,Ltd..The Wi-Fi Module consists of a highly integrated wireless radio chip W302I1160P1 and some extra flash that has been programed with Wi-Fi network protocol and plenty of software examples. AUX_LM include a ARM CM4F, WLAN MAC, 1T1R WLAN, maximum frequency reaches 125MHz, 256K SRAM, 2M byte flash and various peripheral resources. AUX_LM is a RTOS platform, embedded with all the Wi-Fi MAC and TCP/IP protocol function examples, users can customize their Wi-Fi product by using these software examples. Features  Integrated low power consumption 32-bit CPU, also known as application processor  Basic frequency of the CPU can support 125 MHz  Peripherals: 7 GPIO channels, 1 UART  Wi-Fi connectivity:  802.11 B/G/N20/N40  Channel 1 to 11 @ 2.4GHz  Support WPA/WPA2  Support SmartConfig function for both Android and IOS devices  On-board PCB antenna  Operating temperature range: -20℃ to 85℃

Main Application Fields  Intelligent Building  Intelligent home, Intelligent household applications  Healthy devices  Industrial wireless control  Baby monitor  Webcam  Intelligent bus

2. Dimensions and Footprint 2.1Dimensions AUX_LM size: 57.3 mm (W)*36.2 mm (L)*7.2 mm (H) package as shown in Figure 2.1: The tolerance of length and width of PCB is (±0.25 mm) and that of thickness is (±0.1mm). Figure 2.1. The dimensions of AUX_LM 2.2 Pin Definition Table 1 shows the generalpin attributes of AUX_LM Table 1. The typical pin definitionof AUX_LM PIN NAME TYPE DISCREPTION NO. 1 VDD P Supply voltage (12V) 2 GND P Ground 3 EN I/O DC-DCPower Enabling Foot 4 RXD I/O UART0_RXD 5 TXD I/O UART0_TXD Note: P: Power supply pins; I/O: Digital input or output pins; AI: Analog input.

3. Electrical Characteristics Absolute Maximum Ratings Table 3.1. Absolute Maximum Ratings PARAMETERS DESCRIPTION MIN MAX UNIT Ts Storage temperature ‐40 125 ℃ VCC Supply voltage ‐0.3 18 V Static electricity voltage TAMB‐25℃ ‐ 2 KV (human model) Static electricity voltage TAMB‐25℃ ‐ 0.5 KV (machine model) Electrical Conditions Table 3.2. Electrical Conditions PARAMETERS DESCRIPTION MIN TYPICAL MAX UNIT Ta Working temperature ‐20 ‐ 85 ℃ VCC Working voltage 4.5 ‐ 18 V VIL IO low level input ‐0.3 ‐ 0.8 V VIH IO high level input 2.47 ‐ 3.6 V VOL IO low level output ‐ ‐ 0.34 V VoH IO high level output 2.64 ‐ 3.4 V Imax IO drive current ‐ ‐ 16 mA Cpad Input capacitor ‐ 2 ‐ pF Wi-Fi Transmitting Current Consumptions Table 3.3. Wi-Fi TX current consumption PARAMETERS MODE RATE Transmitting power TYPICAL UNIT IRF 11b 1Mbps +23.09dBm 287 mA IRF 11g 6Mbps +25.13dBm 255 mA IRF 11n-HT20 MCS0 +24.26dBm 244 mA IRF 11n-HT40 MCS0 +23.53dBm 220 mA

Wi-Fi Receiving Current Consumptions Table 3.4. Wi-Fi RX current consumption PARAMETERS MODE TYPICAL UNIT IRF CPU sleep 90 mA IRF CPU active 120 mA Working Mode Current Consumptions Table 3.5. The module working current consumption WORK MODE AT TA=25℃ TYPICAL MAX* UNIT EZ Mode AUX_LM is under EZ paring mode, Wi‐ 115 125 mA Fi indicator light flashes quickly Standby Mode AUX_LM is connected, Wi‐Fi indicator light is on 60 209 mA Operation Mode AUX_LM is connected, Wi‐Fi indicator light is on 118 198 mA Disconnection AUX_LM is disconnected, Wi‐Fi indicator light is 34 192 mA Mode off Note: peak continuous time is about 5us. The parameter shown above will vary depending on different firmware functions. 4. WLAN Radio Specification Basic Radio Frequency Characteristics Table 41.Basic Radio frequency characteristics PARAMETERS DESCRIPTION Frequency band 2.412GHz to 2.462GHz Wi‐Fi standard IEEE 802.11n/g/b (Terminal 1‐11) Data transmitting rate 11b:1,2,5.5,11(Mbps) 11g:6,9,12,18,24,36,48,54(Mbps) 11n:HT20,MCS0~7 11n:HT40,MCS0~7 Antenna type On‐board PCB Antenna Wi-Fi Receiving Sensitivity Table 4.3. Wi-Fi Receiving sensitivity PARAMETERS MIN TYPICAL MAX UNI T PER<8%, Receiving sensitivity, 802.11b CCK Mode 11M ‐ ‐91 ‐ dBm PER<10%, Receiving sensitivity, 802.11g OFDM Mode 54M ‐ ‐75 ‐ dBm PER<10%, Receiving sensitivity, 802.11n OFDM Mode MCS7 ‐ ‐72 ‐ dBm

5. Antenna Information Antenna Type PCB board antenna Reduce Antenna Interference While using the On-board PCB antenna, in order to have the best Wi-Fi performance, it’s recommended to keep a minimum15mm distance between the antenna part and the other metal pieces. Fig. 1 shows five common antenna placement modes, of which scheme 1 and scheme 2 have the best performance, and have little influence on the RF performance, which is comparable to the RF performance tested by the module alone. If the design is limited, the PCB antenna must be placed on the bottom board, you can refer to the placement of scheme 3, but there will be some loss of radio frequency performance, almost 1-2 dBm attenuation. The radio frequency performance of scheme 5 is the worst. Because the antenna is placed in the bottom plate, the radio frequency signal can not be transmitted and received well, so it is not recommended to use. Scheme 1: The antenna is outside the frame. Scheme 2: The antenna is placed along the edge of the plate and hollowed underneath.

Scheme 3: The antenna is placed along the Scheme 4: The antenna is placed in the frame edge of the plate without copper cladding and hollowed out below. underneath. Scheme 5: The antenna is in the frame and there is no clearance below.

6. Packaging Information And Production Guide Mechanical Dimensions Figure 6.1. Top view of the module Production Guide  The storage for the delivered module should meet the following condition: 1. The anti-moisture bag should be kept in the environment with temperature< 30℃ and humidity< 85% RH. 2. The expiration date is 6 months since the dry packaging products was sealed.  Cautions: 1. All the operators should wear electrostatic ring in the whole process of production. 2. While operating, water and dirt should not have any contact with the modules. Recommended furnace temperature curve Figure 6.4. PCB Package Drawing Recommended furnace temperature curve

FCC Statement Any Changes or modifications 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. 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 Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. FCC Label Instructions: The outside of final products that contains this module device must display a label referring to the enclosed module. This exterior label can use wording such as: “Contains Transmitter Module FCC ID: 2ANDL-AUXLM”,or “Contains FCC ID: 2ANDL-AUXLM”, Any similar wording that expresses the same meaning may be used. Regulatory Module Integration Instructions This device complies with part 15.247 of the FCC Rules. The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user’s manual of the end product which integrates this module. The antenna is integral PCB Antenna and maximum gain is 2.5dBi . This Wi-Fi module has been granted modular approval for mobile applications. OEM integrators for host products may use the module in their final products without additional FCC certification if they meet the following conditions. Otherwise, additional FCC approvals must be obtained. The host product with the module installed must be evaluated for simultaneous transmission requirements. The user’s manual for the host product must clearly indicate the operating requirements and conditions that must be observed to ensure compliance with current FCC RF exposure guidelines. To comply with FCC regulations limiting both maximum RF output power and human exposure to RF radiation, use this module only with the included onboard antenna. The final host / module combination may also need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device.


Document Created: 2019-04-25 03:27:50
Document Modified: 2019-04-25 03:27:50
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