TUYA TYLC4 User manual

TYLC4v1.0.0 User manual
1. Product Overview
TYLC4 is a low-power embedded Wi-Fi module developed by Hangzhou Tuya Information
Technology Co., Ltd., which consists of a highly integrated RF chip ESP8266 and a few
peripheral components with built-in Wi-Fi network protocol stack and abundant library functions.
TYLC4 is embedded with low power 32-bit CPU, 1 Mbyte flash memory and rich peripheral
resources.
TYLC4 is a RTOS platform which integrates all the function libraries of Wi-Fi MAC and
TCP/IP protocol, base on which, users are enabled to develop embedded Wi-Fi products according
to their specific requirements.
1.1 Features
The embedded low-power 32-bit CPU can also be used as application processor
CPU Clock Speed: 80MHz and 160MHz
Working voltage: 3.0V-3.6V
Peripheral: 5×GPIOs, 1×UART
Wi-Fi connectivity
802.11 b/g/n
Channels 1-11@2.4GHz
In support of WPA/WPA2 safe mode
In support of STA/AP/STA+AP operating mode
In support of two distribution networks including SmartConfig and AP(Android and
IOS devices included)
Operating temperature: -20℃to 125℃
1.2 Main applications
Intelligent building
Smart home/home appliances
Smart power plug, intelligent light
Industrial wireless control
Baby monitors
Webcams
Intelligent public transportation

TYLC4v1.0.0 User manual
2.2 Pin definition
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2. Module Interfaces
2.1 Size Package
TYLC4 has two rows of pins and the spacing between each two pins is 2mm.
TYLC4 size: 16.69mm (W)×16.66mm (L) ×3.5mm (H). TYLC4 size is shown in figure2：
Figure 2.1, TYLC4 dimensional drawing
The interface pin definition is shown in Chart 1:
Chart 1 TYLC4 Interface Pin Configuration Instruction
Table 2.1，WR1 pins description
Pin Symbol IOType Function
1 RST I/O Hardware reset pin (effective at low electrical
level, with pull-up resistor inside)
2 EN I Module enabling pin needs to receive 3.3V power
supply
3 GND P Power reference ground
4 GPIO14 I/O GPIO_14
5 GPIO12 I/O GPIO_12
6 GPIO13 I/O GPIO_13
7 GPIO4 I/O GPIO_04
8 GPIO5 I/O GPIO_05
9 RXD0 I/O UART0_RXD 1
10 TXD0 O UART0_TXD 1
11 VCC P Module’s power pin (3.3V)
Notes: P stands for power pin, I/O stands for input/output pin.
RST is only the module hardware reset pin, which cannot erase WiFi distribution network
information.

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information output and user can ignore it.
2.3 Test Point Definition
The test pin definition is shown in Chart 2:
Chart 2 TYLC4 Test Pin Configuration Instruction
Pin Symbol IOType Function
- TEST1 I/O GPIO2, used for module production test
- TEST2 I/O GPIO0, used for module production test
3. Electrical Parameters
3.1 Absolute electrical parameters
Chart 3 Absolute Parameters
Parameters Description Minimu
m value
Maximu
m value Unit
Ts Storage
temperature -20 85 ℃
VCC Supply
voltage -0.3 3.6 V
Electrostatic Discharge TAMB-25℃- 2 KV
(1): UART0 is the user serial port; when the module is powered up, the serial port has
Voltage (human model)
Electrostatic Discharge
Voltage (machine model) TAMB-25℃- 0.5 KV
3.2 Operating conditions
Chart 4 Normal Operating Conditions
Paramet
ers Description Min Typ Max Unit
Ta Operating
temperature -20 - 125 ℃
VCC Operating voltage 3.0 3.3 3.6 V
VIL IO low electrical
level input -0.3 - VCC*0.25 V

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VIH IO high electrical
level input VCC*0.75 - VCC V
VOL IO low electrical
level output - - VCC*0.1 V
VoH IO high electrical
level output VCC*0.8 - VCC V
Imax IO drive current - - 12 mA
3.3 Wi-Fi Transmitting Power
Chart 5 TX Continuous Transmitting Power
Symbol Mode Power Typ Unit
Mode Mode Rate Transmitting
Power
IRF 11b 1Mbps +19.40 dBm
IRF 11g 6Mbps +21.74 dBm
IRF 11n MCS0+21.26 dBm
3.4 Wi-Fi Receiving Power
Chart 6 RX Continuous Receiving
3.5 Power in Operating Mode
Symbol Mode Typ
Rate
IRF 11b 1Mbps 76
IRF 11g 6Mbps 76
IRF 11n MCS076
Unit
mA
mA
mA

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Chart 7 TYLC4 Operating Current
Operation
Mode Operating condition, TA=25℃Typ Peak Unit
Fast connection
distribution
network
When the module is in a state of fast connection
distribution network, WiFi indicator light flashes
quickly
80 151 mA
Hot spot
distribution
network
When the module is in a state of hot spot
distribution network, WiFi indicator light flashes
slowly
90 451 mA
Internet
connection
When the module is with internet connection,
WiFi indicator light goes on 58.5 411 mA
Offline When the module is offline, WiFi indicator light
goes out 80 430 mA
4. RF Characteristics
4.1 Basic RF characteristics
Chart 8 RF Basic Characteristics
Parameter Description
Operating
frequency 2.412~2.462GHz
Wi-Fi standard IEEE 802.11b/g/n (channel 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
Antenna type
One welding monopole antenna for TYLC4, TYLC4-IPEX
has one replaceable IPEX Connector, using monopole antenna
or FPC antenna

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4.2 Wi-Fi output power
Chart 9 TX Continuous Transmitting Power
Parameter Min Typ Max Unit
RF average output power, 802.11b CCK Mode 1Mbps - - dBm
RF average output power, 802.11g OFDM Mode 6Mbps -- dBm
RF average output power, 802.11n OFDM Mode MCS0- - dBm
Frequency Error - -10 - 10 ppm
4.3 Wi-Fi RX sensitivity
Chart 10 RX Sensitivity
Parameter Min Typ Max Unit
PER<8%，RX sensitivity, 802.11b CCK Mode 1Mbps - -91 - dBm
PER<10%，RX sensitivity, 802.11g OFDM Mode 6Mbps - -75 - dBm
PER<10%，RX sensitivity, 802.11n OFDM Mode MCS0- -72 - dBm
5. Antenna Information
5.1 Antenna type
5.2 Reduction of Antenna Interference
When using antenna with IPEX terminals on the Wi-Fi module, to ensure the best Wi-Fi
performance, it is recommended that the distance between the module antenna and other metal
parts should be at least 10mm.
6.Packaging Information and Manufacturing Instructions
6.1 Mechanical dimensions
TYLC4 has one welding monopole antenna, TYLC4-IPEX has one replaceable IPEX
Connector, using monopole antenna or FPC antenna.
+19.40dBm
+21.74dBm
+21.26dBm

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6.2 Recommended furnace temperature curve

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6.3 Production guide
The storage conditions of modules after leaving the factory are shown as follows:
1.The moisture barrier bag must be stored in an environment where the temperature is
lower than 30℃and the humidity is lower than 85%RH.
2.Product in dry package has a guarantee period of 6 month since it is sealed in the
package
Matters needing attention:.
1. During the whole production process, each operator must wear an electrostatic ring.
2.When operating, protect the modules from water or contaminants.
6.4 Recommended furnace temperature curve

Regulatory Module Integration Instructions
2.2 List of applicable FCC rules
This device complies with part 15.247 of the FCC Rules.
2.3 Summarize the specific operational use conditions
This module can be used in household electrical appliances as well as lighting
equipments. The input voltage to the module should be nominally 3.0~3.6 VDC ,typical
2.4 Limited module procedures
This module can be used in lighting equipment, smart frontpanel, household electrical
appliances. Normally host device should provide a power supply in range 3.0-3.6V,
typically 3.3V for this module. The limited module manufacturer will reviews detailed test
data or host designs prior to giving the host manufacturer approval.
2.5 Trace antenna designs
Not applicable
2.6 RF exposure considerations
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. If the device built into a host as a portable usage,
TYLC4v1.0.0 User manual
value 3.3VDC and the ambient temperature of the module should not exceed 125℃.
TYLC4 has one welding monopole antenna with antenna gain 1dBi, TYLC4-IPEX has
one replaceable IPEX Connector, using monopole antenna with antenna gain 1dBi or
FPC antenna with antenna gain 3dBi.
If the antenna needs to be changed, the certification should be re-applied.

the additional RF exposure evaluation may be required as specified by§ 2.1093.
2.7 Antennas
2.8 Label and compliance information
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-TYLC4 ”,or “Contains FCC ID: 2ANDL-TYLC4”, Any
similar wording that expresses the same meaning may be used.
2.9 Information on test modes and additional testing requirements
a) The modular transmitter has been fully tested by the module grantee on the required
number of channels, modulation types, and modes, it should not be necessary for the
host installer to re-test all the available transmitter modes or settings. It is
recommended that the host product manufacturer, installing the modular transmitter,
perform some investigative measurements to confirm that the resulting composite
system does not exceed the spurious emissions limits or band edge limits (e.g., where a
different antenna may be causing additional emissions).
b) The testing should check for emissions that may occur due to the intermixing of
emissions with the other transmitters, digital circuitry, or due to physical properties of
the host product (enclosure). This investigation is especially important when integrating
multiple modular transmitters where the certification is based on testing each of them in
a stand-alone configuration. It is important to note that host product manufacturers
should not assume that because the modular transmitter is certified that they do not
TYLC4v1.0.0 User manual
TYLC4 has one welding monopole antenna, TYLC4-IPEX has one replaceable IPEX
antenna, using monopole antenna or FPC antenna.

have any responsibility for final product compliance.
c) If the investigation indicates a compliance concern the host product manufacturer is
obligated to mitigate the issue. Host products using a modular transmitter are subject to
all the applicable individual technical rules as well as to the general conditions of
operation in Sections 15.5, 15.15, and 15.29 to not cause interference. The operator of
the host product will be obligated to stop operating the device until the interference has
been corrected
Below are steps for TX verification：
tx_contin_en 1 // return：wifi tx continuous test!
wifitxout < parameter 1> < parameter 2> < parameter 3>
< parameter 1>：Send channel option and allowed number is 1~11.
< parameter 2>：Send data rate option, the relationship between input parameters and
rates is shown in table 1.
< parameter 3>：Send power attenuation, which is 8 bits directed number and 0.25 dB
unit.
for，4 equals power decrease 1dB，252 equals power increase 1dB。
Table 1: allowed input for speed of receiving or sending data package
11b mode 11g mode 11n mode
Input Dial Speed Input Dial Speed Input Dial Speed
0x0 1M 0xb 6M 0x10 6.5M / MCS0
0x1 2M 0xf 9M 0x11 13M / MCS1
0x2 5.5M 0xa 12M 0x12 19.5M / MCS2
TYLC4v1.0.0 User manual

The host integrator installing this module into their product must ensure that the final
composite product complies with the FCC requirements by a technical assessment or
evaluation to the FCC rules, including the transmitter operation and should refer to
guidance in KDB 996369.
Frequency spectrum to be investigated
For host products with certified modular transmitter, the frequency range of investigation
of the composite system is specified by rule in Sections 15.33(a)(1) through (a)(3), or the
range applicable to the digital device, as shown in Section 15.33(b)(1), whichever is the
higher frequency range of investigation.
2.10 Additional testing, Part 15 subpart B disclaimer
The final host / module combination 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.
0x3 11M 0xe 18M 0x13 26M / MCS3
0x9 24M 0x14 39M / MCS4
0xd 36M 0x15 52M / MCS5
0x8 48M 0x16 58.5M / MCS6
0xc 54M 0x17 65M / MCS7
cmdstop // Stop sending data package command
TYLC4v1.0.0 User manual

general testing details.
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
Operating the host product
When testing the host product, all the transmitters must be operating.The transmitters can
be enabled by using publicly-available drivers and turned on, so the transmitters are
active. In certain conditions it might be appropriate to use a technology-specific call box
(test set) where accessory devices or drivers are not available.
When testing for emissions from the unintentional radiator, the transmitter shall be placed
in the receive mode or idle mode, if possible. If receive mode only is not possible then, the
radio shall be passive (preferred) and/or active scanning. In these cases, this would need
to enable activity on the communication BUS (i.e., PCIe, SDIO, USB) to ensure the
unintentional radiator circuitry is enabled. Testing laboratories may need to add
attenuation or filters depending on the signal strength of any active beacons (if applicable)
from the enabled radio(s). See ANSI C63.4, ANSI C63.10 and ANSI C63.26 for further
The product under test is set into a link/association with a partnering WLAN device, as per
the normal intended use of the product. To ease testing, the product under test is set to
transmit at a high duty cycle, such as by sending a file or streaming some media content.
TYLC4v1.0.0 User manual