Last Updated on : 2022-08-09 03:28:36download
WR1E is a low-power embedded Wi-Fi module that Tuya has developed. It consists of a highly integrated wireless RF chip (RTL8710BN) and an external flash chip, with an embedded Wi-Fi network protocol stack and varied library functions.
With the maximum CPU clock rate of 125 MHz, WR1E contains a low-power ARM CM4F, a WLAN MAC, a 1T1R WLAN module, 256 KB static random-access memory (SRAM), 2 MB ﬂash memory, and extensive peripherals.
WR1E is an RTOS platform that integrates all function libraries of the Wi-Fi MAC and TCP/IP protocols. You can develop embedded Wi-Fi products as required.
WR1E has two lines of pins with a 1.5-mm pin spacing. Each line has 9 pins.
The WR1E dimensions are 18±0.35 mm (W)×23.5±0.35 mm (L) ×3.4±0.15 mm (H). The dimensions of WR1E are as follows:
Definitions on interface pins are shown below:
|1||VCC||P||UART0_TXD power supply conversion (5V or 3.3V)|
|2||UART0_TXD||I/O||UART0_TXD (user-side serial interface)|
|3||UART0_RXD||I/O||UART0_RXD (user-side serial interface)|
|4||VD33||P||Power supply pin (3.3V)|
|5||GND||P||Power supply reference ground|
|6||GPIOA_14||I/O||GPIOA_14, hardware PWM, IC Pin 13|
|7||GPIOA_15||I/O||GPIOA_15, hardware PWM, IC Pin 14|
|8||LOG_TXD||I/O||UART_Log_TXD (used to display the internal information of the module)|
|9||GPIOA_12||I/O||GPIOA_12, hardware PWM, IC Pin 17|
|10||GPIOA_5||I/O||GPIOA_5, hardware PWM, IC Pin 28|
|11||LOG_RXD||I/O||UART_Log_RXD (used to display the internal information of the module) The module has been pulled up and cannot be used for triggering the high level|
|12||GPIOA_19||I/O||GPIOA_19, a universal IO port, IC Pin 30|
|13||GPIOA_22||I/O||GPIOA_22, hardware PWM, IC Pin 31|
|14||GND||P||Power supply reference ground|
|15||GND||P||Power supply reference ground|
|16||CHIP_EN||I/O||When software disables the function, connection by a user fails|
|17||ADC||AI||ADC port, the maximum input voltage is 5V|
|18||GND||P||Power supply reference ground|
Note: P indicates power supply pins, I/O indicates input/output pins, and AI indicates analog input pins.
|Parameter||Description||Minimum Value||Maximum Value||Unit|
|VCC||Power supply voltage||-0.3||3.6||V|
|ESD voltage (human body model)||TAMB-25℃||-||2||KV|
|ESD voltage (machine model)||TAMB-25℃||-||0.5||KV|
|Parameter||Description||Minimum value||Typical value||Maximum value||Unit|
|VIL||IO low-level input||-0.3||-||VDD*0.25||V|
|VIH||IO high-level input||VDD*0.75||-||3.6||V|
|VOL||IO low-level output||-||-||VDD*0.1||V|
|VOH||IO high-level output||VDD*0.8||-||VDD||V|
|Imax||IO drive current||-||-||16||mA|
|Cpad||Input pin capacitance||-||2||-||pF|
TX power consumption:
|Working status||Mode||Rate||Transmit power/Receive||Average value||Peak value (typical value)||Unit|
|Transmit||11 b||11 Mbps||+17 dBm||287||367||mA|
|Transmit||11 b||11 Mbps||+18 dBm||295||382||mA|
|Transmit||11 g||54 Mbps||+15 dBm||255||406||mA|
|Transmit||11 g||54 Mbps||+17.5 dBm||267||428||mA|
|Transmit||11n-HT20||MCS 7||13 dBm||244||395||mA|
|Transmit||11n-HT20||MCS 7||16.5 dBm||257||422||mA|
|Transmit||11n-HT40||MCS 7||13 dBm||220||393||mA|
|Transmit||11n-HT40||MCS 7||16.5 dBm||230||420||mA|
|Working mode||Working status, Ta = 25°C||Average value||Peak value (Typical value)||Unit|
|Quick connection network state||The module is in the fast network connection state and the Wi-Fi indicator always flashes||115||376||mA|
|Hotspot network configuration state||The module is in the hotspot network configuration state and the Wi-Fi indicator always flashes slowly||60||386||mA|
|Network connection operation state||The module is connected to the network and the Wi-Fi indicator is always on||105||389||mA|
|Disconnected state||The module is disconnected and the Wi-Fi indicator is dark||45||381||mA|
|Frequency range||2.400 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)|
|Data transmission rate||11g: 6, 9, 12, 18, 24, 36, 48, 54 (Mbps)|
|Data transmission rate||11n: HT20 MCS 0 to 7|
|Data transmission rate||11n: HT40 MCS 0 to 7|
|Antenna type||PCB antenna (default); Antenna to which a U.FL RF connector is externally connected (optional)|
|Parameter||Minimum value||Typical value||Maximum value||Unit|
|Average RF output power, 802.11b CCK Mode 1 M||-||17.5||-||dBm|
|Average RF output power, 802.11g OFDM Mode 54 M||-||14.5||-||dBm|
|Average RF output power, 802.11n OFDM Mode MCS 7||-||13.5||-||dBm|
|EVM@802.11b CCK 11 Mbps Mode 17.5 dBm||-||-10||dB|
|EVM@802.11g OFDM 54 Mbps Mode 15.0 dBm||-||-29||dB|
|EVM@802.11n OFDM MCS7 Mode 14.0 dBm||-||-30||dB|
|Parameter||Minimum value||Typical value||Maximum value||Unit|
|PER<8%, RX sensitivity, 802.11b CCK Mode 1 M||-||-91||-||dBm|
|PER<10%, RX sensitivity, 802.11g OFDM Mode 54M||-||-75||-||dBm|
|PER<10%, RX sensitivity, 802.11n OFDM Mode MCS7||-||-72||-||dBm|
WR1E uses two types of antennas: onboard PCB antenna and external antenna. By default, the onboard PCB antenna is preferred. You can select either of them by configuring a resistor.
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.
Parameters of the U.FL RF connector are shown as below:
The mechanical dimensions of PCB of WR1E are 18±0.35 mm (W)×23.5±0.35 mm (L) ×0.8±0.1 mm (H).
Diagram of mechanical dimensions of WR1E
The Tuya SMT module should be mounted by the SMT device. After being unpacked, it should be soldered within 24 hours. Otherwise, it should be put into the drying cupboard where the RH is not greater than 10%; or it needs to be packaged under vacuum again and the exposure time needs to be recorded (the total exposure time cannot exceed 168 hours).
Storage conditions for a delivered module:
The moisture-proof bag must be placed in an environment where the temperature is below 40°C and the relative humidity is lower than 90%.
The shelf life of a dry-packaged product is 12 months from the date when the product is packaged and sealed.
There is a humidity indicator card (HIC) in the packaging bag.
The module needs to be baked in the following cases:
In the whole production process, take electrostatic discharge (ESD) protective measures.
To guarantee the passing rate, it is recommended that you use the SPI and AOI to monitor the quality of solder paste printing and mounting.
Set oven temperatures according to the following temperature curve of reflow soldering. The peak temperature is 245°C.
A: Temperature axis
B: Time axis
C: Liquidus temperature: 217 to 220°C
D: Ramp-up slope: 1 to 3°C/s
E: Duration of constant temperature: 60 to 120s; the range of constant temperature: 150 to 200°C
F: Duration above the liquidus: 50 to 70s
G: Peak temperature: 235 to 245°C
H: Ramp-down slope: 1 to 4°C/s
Note: The above curve is just an example of the solder paste SAC305. For more details about other solder pastes, please refer to Recommended oven temperature curve in the solder paste specifications.
|Product model||MOQ (pcs)||Shipping packaging method||Modules per reel (pcs)||Reels per carton (reel)|
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:
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.
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-WR1E. The end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID: 2ANDL-WR1E”.
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.
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