AUX_LM Module Datasheet

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 programmed with Wi-Fi network protocol and plenty of software examples.

Product overview

AUX_LM includes an ARM CM4F, WLAN MAC, 1T1R WLAN, maximum frequency reaches 125MHz, 256K SRAM, 2M byte flash, and various peripheral resources.

AUX_LM is an 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

• Built-in low power-consuming 32-bit CPU functioning as an application processor
• Basic frequency: 125 MHz
• Working voltage: 12 V
• Peripherals: one UART
• Wi-Fi connectivity
  • 802.11b/g/n20/n40
  • Channels 1 to 14 at 2.4 GHz
  • WPA/WPA2 security mode
  • +18 dBm output power in 802.11b mode
  • Smart network configuration function (for Android and iOS devices)
  • PCB onboard antenna
  • Working temperature: -20°C to +85°C

Applications

• Intelligent building
• Smart home and household appliances
• Healthcare
• Industrial wireless control
• Baby monitor
• Network camera
• Intelligent bus

Change History

Date	Change Description	Version After Change
2019-2-26	Format standardization update	2.0.0

Module interfaces

Dimensions and footprint

AUX_LM dimensions: 57.3 mm±0.35mm(W)×36.2 ±0.35mm(L) ×7.2±0.15mm (H),the PCB thickness is 1.6mm±0.1 mm,Figure as below :

Interface pin definition

Pin No.	Symbol	I/O Type	Function
1	VDD	P	External power input (12 V)
2	GND	P	Power supply reference ground pin
3	EN	I/O	DC-DC power enable pin
4	RXD1	I/O	UART0_RXD (user serial port)
5	TXD1	I/O	UART0_TXD (user serial port)

Note: P indicates power-supply pins, I/O indicates input/output pins

Electrical parameters

Absolute electrical parameters

Parameter	Description	Minimum Value	Maximum Value	Unit
Ts	Storage temperature	-40	125	°C
VCC	Power supply voltage	-0.3	18	V
Static electricity voltage (human body model)	Tamb = 25°C	N/A	2	kV
Static electricity voltage (machine model)	Tamb = 25°C	N/A	0.5	kV

Electrical conditions

Parameter	Description	Minimum Value	Typical Value	Maximum Value	Unit
Ta	Working temperature	-20	N/A	85	°C
VCC	Power supply voltage	4.5	12	18	V
VIL	I/O low-level input	-0.3	N/A	0.8	V
VIH	I/Ohigh-level input	2.47	N/A	3.6	V
VOL	I/O low-level output	N/A	N/A	0.34	V
VoH	I/O high-level output	2.64	N/A	3.4	V
Imax	I/O drive current	N/A	6	16	mA
Cpad	Input pin capacitance	-	2	-	pF

Continuous TX power dissipation

Working Status	Mode	Rate	TX Power	Typical Value	Peak Value (Typiacl)	Unit
TX	11b	11Mbps	+17dBm	287	367	mA
TX	11b	11Mbps	+18dBm	295	382	mA
TX	11g	54Mbps	+15dBm	255	406	mA
TX	11g	54Mbps	+17.5dBm	267	428	mA
TX	11n BW20	MCS7	+13dBm	244	395	mA
TX	11n BW20	MCS7	+16.5dBm	257	422	mA
TX	11n BW40	MCS7	+13dBm	220	393	mA
TX	11n BW40	MCS7	+16.5dBm	230	420	mA

Continuous RX power dissipation

Working Status	Mode	Rate	Receiving	Typical Value	Peak Value (Typiacl)	Unit
RX	CPU Sleep	11Mbps	Continuous RX	90	-	mA
RX	CPU Active	MCS7 BW20	Continuous RX	120	-	mA

Working current

Working Mode	Working Status (Ta = 25°C)	Average Value	Peak Value*(Typical Value)	Unit
Quick configuration	Module in the quick net-pairing state, Wi-Fi indicator blinking	115	125	mA
Network connection idle	Module connected to the network, Wi-Fi indicator constantly on	60	209	mA
Network connection active	Module connected to the network, Wi-Fi indicator constantly on	118	198	mA
Disconnected	Module not connected to the network, Wi-Fi indicator always off	34	192	mA

Note: The preceding parameter values vary depending on the firmware functions.

RF features

Basic RF features

Parameter	Description
Frequency band	2.412 GHz to 2.4835 GHz
Wi-Fi standard	IEEE 802.11b/g/n (channels 1 to 14)
Data transmission 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
Data transmission rate	802.11b: 1, 2, 5.5, or 11 (Mbit/s)
Antenna type	PCB On Board antenna

TX performance

Parameter	Minimum Value	Typical Value	Maximum Value	Unit
Average RF output power, 802.11b CCK mode 11 Mbit/s	N/A	17.5	N/A	dBm
Average RF output power, 802.11g OFDM mode 54 Mbit/s	N/A	14.5	N/A	dBm
Average RF output power, 802.11n OFDM mode MCS7	N/A	13.5	N/A	dBm
Frequency error	-20	N/A	+20	ppm

RX performance

Parameter	Minimum Value	Typical Value	Maximum Value	Unit
PER < 8%, 802.11b CCK mode 1 Mbit/s	N/A	-91	N/A	dBm
PER < 10%, 802.11g OFDM mode 54 Mbit/s	N/A	-75	N/A	dBm
PER < 10%, 802.11n OFDM mode MCS7	N/A	-72	N/A	dBm

Antenna

Antenna type

WR6 uses an onboard PCB antenna, the antenna gain is 2.5dBi.

Antenna interference reduction

To ensure optimal Wi-Fi performance when the Wi-Fi module uses an onboard PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts. To prevent an adverse impact on the antenna radiation performance, avoid copper or traces along the antenna area on the PCB.

Packaging information and production instructions

Mechanical dimensions

Production instructions

The storage for the delivered module should meet the following condition:

1. The anti-moisture bag should be kept in an environment with temperature< 30℃ and humidity< 85%.
2. The expiration date is 6 months since the dry packaging products were sealed.
   Cautions :
3. All the operators should wear an electrostatic ring in the whole process of production.
4. While operating, water and dirt should not have any contact with the modules.

Recommended oven temperature curve

Perform SMT placement based on the following reflow oven temperature curve. The highest temperature is 245°C.

Storage conditions

Appendix: Statement

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this device.

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.

Note: This device has been tested and found to comply with the limits for a Class B digital device, according to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This device generates, uses, and can radiate radio frequency energy and, if not installed and used following 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 device does cause harmful interference to radio or television reception, which can be determined by turning the device 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 device and receiver.
• Connect the device 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.

Radiation Exposure Statement

This device complies with FCC radiation exposure limits set forth for an uncontrolled rolled environment. This device should be installed and operated with a minimum distance of 20cm between the radiator and your body.

Important Note

This radio module must not be installed to co-locate and operating simultaneously with other radios in the host system except following FCC multi-transmitter product procedures. Additional testing and device authorization may be required to operate simultaneously with other radios.

The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end-user.

The host product manufacturer is responsible for compliance with any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.

The end-user manual shall include all required regulatory information/warnings as shown in this manual, including “This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body”.

This device has got an FCC ID: 2ANDL-TYAUX-LM. The end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID: 2ANDL-TYAUX-LM”.

This device is intended only for OEM integrators under the following conditions:

The antenna must be installed such that 20cm is maintained between the antenna and users, and the transmitter module may not be co-located with any other transmitter or antenna.

As long as the 2 conditions above are met, further transmitter tests will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.

Declaration of Conformity European Notice

Hereby, Hangzhou Tuya Information Technology Co., Ltd declares that this module product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EU,2011/65/EU. A copy of the Declaration of conformity can be found at https://www.tuya.com.

This product must not be disposed of as normal household waste, in accordance with the EU directive for waste electrical and electronic equipment (WEEE-2012/19/EU). Instead, it should be disposed of by returning it to the point of sale, or to a municipal recycling collection point.

The device could be used with a separation distance of 20cm to the human body.