TCLWRQS1-WJ Module Datasheet

Product overview

Developed by Tuya, TCLWRQS1-WJ is a Wi-Fi module that is suitable for serial communication in which the level is changed from 5V TTL to 3.3V TTL. It consists of a highly integrated wireless RF chip (RTL 8710BN), an extended chip and a DC-DC chip. Besides, it has a built-in Wi-Fi network protocol stack and rich library functions. It further contains a low-power ARM CM4FCPU, a 2-MB flash memory and a 256-KB SRAM。

TCLWRQS1-WJ is an RTOS platform that integrates all function libraries of the Wi-Fi MAC and TCP/IP. On the basis of the serial communication manner, you can develop embedded Wi-Fi products as required.

Features

• Embedded low-power CPU, which can also function as an application processor
• Maximum clock rate: 125 MHz
• Working voltage: 4.5 to 5.5V
• Peripherals: 1 UART
• Wi-Fi connectivity
  • 802.11 b/g/n20/n40
  • Channels 1 to 14@2.4GHz
  • Support WPA, WPA2, WEP, and TKIP security modes
  • Up to + 20dBm output power in 802.11b mode
  • Support SmartConfig and AP network configuration manners for Android and IOS devices
  • PCB antenna
  • Working temperature: -20℃ to 85℃

Applications

• Intelligent building
• Smart household and home appliances
• Smart socket and light
• Industrial wireless control

Change history

Update date	Updated content	Version after update
11/23/2019	First release	V2.0.0

Module interfaces

Dimensions and footprint

The dimensions of TCLWRQS1-WJ are 49.3±0.35 mm (L)×30.8±0.35 mm (W) ×7.8±0.15 mm (H).

Pin definition

Pin number	Symbol	I/O type	Function
1	Vin	P	Power supply, 5V
2	GND	P	Power supply reference ground
3	TXD	I/O	Serial interface for transmitting
4	RXD	I/O	Serial interface for receiving

Note: P indicates a power supply pin and I/O indicates an input/output pin.

Definitions on test pins

Pin number	Symbol	I/O type	Function
-		-	Used for module production tests
5	Log_TX	I/O	UART2_TXD (Used for burning firmware or printing the internal information)
6	Log_RX	I/O	UART2_RXD (Used for burning firmware)
7	UART_TX	I/O	Interface for burning firmware
8	UART_RX	I/O	Interface for burning firmware

Note: Test pins are forbidden.

Electrical parameters

Absolute electrical parameters

Parameter	Description	Minimum value	Maximum value	Unit
Ts	Storage temperature	-40	125	℃
VCC	Power supply voltage	-	5.5	V
ESD voltage (human body model)	TAMB-25℃	-	2	KV
ESD voltage (machine model)	TAMB-25℃	-	0.5	KV

Normal working conditions

Parameter	Description	Minimum value	Typical value	Maximum value	Unit
Ta	Working temperature	-20	-	85	℃
VCC	Power supply voltage	4.5	5.0	5.5	V
VIL	I/O low-level input	-0.3	-	VCC*0.25	V
VIH	I/O high-level input	VCC*0.75	-	VCC	V
VOL	I/O low-level output	-	-	VCC*0.1	V
VOH	I/O high-level output	VCC*0.8	-	VCC	V
Imax	I/O drive current	-	-	12	mA

TX power consumption

Working status	Mode	Rate	Transmit power	Peak value (Typical value)	Unit
Transmit	11b	11Mbps	+17dBm	270	mA
Transmit	11g	54Mbps	+14.5dBm	255	mA
Transmit	11n BW20	MCS7	+13.5dBm	235	mA
Transmit	11n BW40	MCS7	+13.5dBm	235	mA

RX power consumption

Working status	Mode	Rate	Receive	Peak value (Typical value)	Unit
Receive	CPU Sleep	11Mbps	Constantly receive	90	mA
Receive	CPU Active	54Mbps	Constantly receive	120	mA

Power consumption in working mode

Working mode	Working status, Ta = 25°C	Typical value	Peak value	Unit
Fast connection	The module is in the fast network connection state	95	245	mA
Hotspot connection	The module is in the hotspot network connection state	88	150	mA
Connected	The module is connected to the network	45	220	mA

Note: The above parameters vary with firmware functions.

RF parameters

Basic RF features

Parameter	Description
Working frequency	2.412 to 2.4835 GHz
Wi-Fi standard	IEEE 802.11 b/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 MCS 0 to 7; 11n: HT40 MCS 0 to 7
Antenna type	PCB antenna

TX performance

TX performance

Parameter	Minimum value	Typical value	Maximum value	Unit
Average RF output power, 802.11b CCK Mode 1M	-	17	-	dBm
Average RF output power, 802.11g OFDM Mode 54M	-	14.5	-	dBm
Average RF output power, 802.11n OFDM Mode MCS7	-	13.5	-	dBm
Frequency error	-20	-	20	ppm

RX performance

RX sensitivity

Parameter	Minimum value	Typical value	Maximum value	Unit
PER<8%, RX sensitivity, 802.11b DSSS Mode 1M	-	-90	-	dBm
PER<10%, RX sensitivity, 802.11g OFDM Mode 54M	-	-73	-	dBm
PER<10%, RX sensitivity, 802.11n OFDM Mode MCS7	-	-70	-	dBm

Antenna information

Antenna type

TCLWRQS1-WJ uses only the PCB antenna.

Antenna interference reduction

To ensure optimal Wi-Fi performance when the Wi-Fi module uses a PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts.

To prevent adverse impact on the antenna radiation performance, avoid copper or traces within the antenna area on the PCB.

Specifications of antenna connector

There is no antenna connector for this module for the moment.

Specifications of connection wire

The connection wire is PHS-4P TO TJC25020-4P, with a length of 500 mm. For more details, refer to the following figure. If you want to change the wire, please contact Tuya.

Specifications of housing

Upper cover

Lower cover

Packaging information and production instructions

Mechanical dimensions

Production instructions

Storage conditions for a delivered module:

• The moisture-proof bag must be placed in an environment where the temperature is below 30°C and the relative humidity is lower than 70%.
• The shelf life of a dry-packaged product is 6 months from the date when the product is packaged and sealed.

Caution:

• In the production process, all operators must wear electrostatic rings.
• During operation, strictly prevent the module from getting wet or dirty.

Recommended oven temperature curve

Set temperatures according to the following curve. The peak temperature is 245°C.

Refer to IPC/JEDEC standard. Peak Temperature: <245℃. Number of Times: ≤2 times.

Storage conditions

MOQ and packaging information

Product model	MOQ (pcs)	Packaging method	Number of modules per carton	Number of reels per carton
TCLWRQS1-WJ	400	Bubble bags	200	2

Appendix: Statement

Federal Communications Commission (FCC) Declaration of Conformity

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 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 radio frequency 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.

Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled rolled environment. This equipment 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 in accordance with FCC multi-transmitter product procedures. Additional testing and equipment 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/warning 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-TCLWRQS1-WJ. The final end product must be labelled in a visible area with the following: “Contains Transmitter Module FCC ID:2ANDL-TCLWRQS1-WJ”. This device is intended only for OEM integrators under the following conditions:

• The antenna must be installed such that 20 cm is maintained between the antenna and users

• 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.