LM Reset & Teardown (FCC ID 2ANDL-AUX-LM)

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 A
pplication Fields 
 Int
elligent Building
 Intelligent home, Intelligent household applications
 Healthy devices
 Industrial wireless control
 Baby monitor
 Webcam
 Intelligent bus
2. Di
mensions and Footprint
2.1Dimensions 
AU
X_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). 
Fi
gure 2.1. The dimensions of AUX_LM 
2.2 Pi
n Definition 
Ta
ble 1 shows the generalpin attributes of AUX_LM 
Ta
ble 1. The typical pin definitionof AUX_LM 
PIN
NO
NAME TYPE DISCREPTION
1 V
DD P Supplyvoltage(12V)
2 G
ND P Ground
3 EN
 I/O DC-DCPower Enabling Foot 
4 R X
D I/O UART0_RXD 
5 T X
D I/O UART0_TXD 
Note
: P: Power supply pins; I/O: Digital input or output pins; AI: Analog input. 
3. Ele
ctrical Characteristics
Abso
lute Maximum Ratings
Table 3.1. 
Absolute Maximum Ratings 
PARA
METERS DESCRIPTION MIN MAX UNIT
Ts Stora
getemperature‐ 40 125 ℃ 
VCC Supplyvol
tage ‐0.3 18 V
Staticelec
tricityvoltage
(humanmodel)
TAMB‐25℃ ‐ 2 KV
Staticelec
tricityvoltage
(machinemodel)
TAMB‐25℃ ‐ 0.5 KV
Electrical
 Conditions 
Table 3.2
. Electrical Conditions 
PARA
METERS DESCRIPTION MIN TYPI
CAL MAX UNIT
Ta Work
ingtemperature ‐20‐ 85 ℃ 
VCC Wor
kingvoltage 4.5‐ 18 V
VIL IOlowlevelin
put ‐0.3‐ 0.8 V
VIH IOhighleve
linput 2.47‐ 3.6 V
VOL IOlowleve
loutput ‐ ‐ 0.34 V
VoH IOhighlev
eloutput 2.64‐ 3.4 V
Imax IOdriv
ecurrent ‐ ‐ 16 mA
Cpad Inputcapa
citor ‐ 2 ‐ pF
Wi-
Fi Transmitting Current Consumptions 
Table 3.3. Wi-Fi TX current consumption 
PARAMETERS MODE RATE Transmittingpower TYPICAL UNIT
IRF 11b 1Mbps +19.61dBm 287 mA
IRF 11g 6Mbps +20.36dBm 255 mA
IRF 11 n-HT20 MCS0 +19.60dBm 244 mA
IRF 11n-HT40 MCS0 +19.79dBm 220 mA
Wi-F
i Receiving Current Consumptions 
Table 3.4
. Wi-Fi RX current consumption 
PARAM
ETERS MODE TYPICAL UNIT
IRF CPUs
leep 90 m...