TYWE3L is a low power consumption module with a built-in Wi-Fi connectivity solution designed by HangZhou Tuya Technology Corporation. The Wi-Fi Module consists of a highly integrated wireless radio chip ESP8266 and some extra component that has been programmed with Wi-Fi network protocol and plenty of software examples.
TYWE3L includes a 32-bit CPU, 2M byte flash, 50k SRAM, and various peripheral resources.
TYWE3L is an RTOS platform, embedded with all the Wi-Fi MAC and TCP/IP protocol function examples, you can customize your Wi-Fi products by using these software examples.
The following figure shows the block diagram of the TYWE3L.
TYWE3L has 2 columns of Pins. The distance between each Pin is 2mm. Size of TYWE3L: 16±0.35 mm (W)×24±0.35 mm (L)*3.4±0.2mm(H)
The following figure shows the dimensions of TYWE3L.
The following table shows the general pin attributes of TYWE3L.
| PIN NO. | Name | Type | Description |
|---|---|---|---|
| 1 | RST | I/O | External reset singal(low level effects, there’s already had pull-up resistor) |
| 2 | ADC | AI | ADC terminal(10-bits SAR ADC) |
| 3 | EN | I | Enable pin for module, high level effects |
| 4 | GPIO16 | I/O | GPIO_16 (10k pull-up resistor needed) |
| 5 | GPIO14 | I/O | GPIO14 |
| 6 | GPIO12 | I/O | GPIO12 |
| 7 | GPIO13 | I/O | GPIO13 |
| 8 | VCC | P | Supply voltage (3.3V) |
| 9 | GND | P | Ground |
| 10 | GPIO15 | O | GPIO_15(processing during initials, caution when used) |
| 11 | GPIO2 | O | UART0_TXD(used to print module’s internal information) |
| 12 | GPIO0 | I/O | GPIO_0(processing during initials, caution when used) |
| 13 | GPIO4 | I/O | GPIO4 |
| 14 | GPIO5 | I/O | GPIO5 |
| 15 | RXD0 | I/O | UART0_RXD |
| 16 | TXD0 | O | UART0_TXD |
Note:
- S: Power supply pins;
- I/O: Digital input or output pins;
- AI: Analog input.
- RST pin is the module hardware reset pin; it cannot eliminate module-pairing information.
- (1) This pin can only be used as ADC input, cannot use it as normal I/O. when not using, just connect nothing. When used as ADC input, the input voltage range is 0~1.0V.
- (2) UART0 is a serial port, during power-on progress; this serial port will output something, which can be ignored.
The following table shows the general test pin definition of TYWE3L.
| PIN NO. | Name | Type | Description |
|---|---|---|---|
| - | TEST | I | Used for production test for the module |
Note: This test pin is not recommended to use.
| Parameters | Description | Min | Max | Unit |
|---|---|---|---|---|
| Ts | Storage temperature | -20 | 105 | ℃ |
| VCC | Supply voltage | -0.3 | 3.6 | V |
| Static electricity voltage (human model) | TAMB-25℃ | - | 2 | KV |
| Static electricity voltage (machine model) | TAMB-25℃ | - | 0.5 | KV |
| Parameters | Description | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| Ta | Working temperature | -20 | - | 105 | ℃ |
| VCC | Working voltage | 3 | 3.3 | 3.6 | V |
| VIL | IO low level input | -0.3 | - | VCC*0.25 | V |
| VIH | IO high level input | VCC*0.75 | - | VCC | V |
| VOL | IO low level output | - | - | VCC*0.1 | V |
| VoH | IO high level output | VCC*0.8 | - | VCC | V |
| Imax | IO drive current | - | - | 12 | mA |
| Parameters | Mode | Rate | Transmitting power | Typical | Unit |
|---|---|---|---|---|---|
| IRF | 11b | 11Mbps | +17dBm | 220 | mA |
| IRF | 11g | 54Mbps | +15dBm | 110 | mA |
| IRF | 11n | MCS7 | +13dBm | 100 | mA |
| Parameters | Mode | Rate | Typical | Unit |
|---|---|---|---|---|
| IRF | 11b | 11Mbps | 76 | mA |
| IRF | 11g | 54Mbps | 76 | mA |
| IRF | 11n | MCS7 | 76 | mA |
| Work mode | AT TA=25 ℃ | Typical | Max | Unit |
|---|---|---|---|---|
| EZ Mode | TYWE3L is under EZ paring mode, Wi-Fi indicator light flashes quickly | 80 | 418 | mA |
| AP Mode | TYWE3L is under AP paring mode, Wi-Fi indicator light flashes slowly | 90 | 451 | mA |
| Operation Mode | TYWE3L is connected, Wi-Fi indicator light is on | 58.5 | 411 | mA |
| Disconnection Mode | TYWE3L is disconnected, Wi-Fi indicator light is off | 80 | 430 | mA |
| Parameters | Description |
|---|---|
| Frequency band | 2.4GHz to 2.5GHz |
| Wi-Fi standard | IEEE 802.11n/g/b (Terminal 1-14) |
| 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 | On-board PCB Antenna |
| Parameters | Min | Typical | Max | Unit | |
|---|---|---|---|---|---|
| RF average output power, 802.11b CCK Mode | 1M | - | 20 | - | dBm |
| RF average output power, 802.11g OFDM Mode | 54M | - | 17 | - | dBm |
| RF average output power, 802.11n OFDM Mode | MCS7 | - | 14 | - | dBm |
| The Frequency error | -10 | -10 | - | 10 | ppm |
| Parameters | Min | Typical | Max | Unit |
|---|---|---|---|---|
| PER<8%, Receiving sensitivity, 802.11b CCK Mode 1M | - | -91 | - | dBm |
| PER<10%, Receiving sensitivity, 802.11g OFDM Mode 54M | - | -75 | - | dBm |
| PER<10%, Receiving sensitivity, 802.11n OFDM Mode MCS7 | -72 | dBm |
The antenna can be connected only using an onboard PCB antenna.
While using the Onboard PCB antenna, in order to have the best Wi-Fi performance, it’s recommended to keep a minimum 15mm distance between the antenna part and the other metal pieces.
User’s own PCBA design is recommended NOT to pass any wire, NOT do copper pour under the region of the module’s antenna, to avoid interferences.
As shown in the following figure, the mechanical dimensions of the PCB of WBR3 are 16±0.35 mm (W)×24±0.35 mm (L) ×0.8±0.1 mm (H).
The following figure shows the module’s side view.
The following figure shows the PCB schematic.
The following figure shows the PCB Package.
TYWE3L is available in two sizes, with and without pin headers, depending on the actual application. The pin size and recommended layout as shown below (unit: mm)
The stamp-hole module must be mounted by the SMT machine. After being unpacked, it must be soldered within 24 hours. Otherwise, it must 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 are as follows:
The module needs to be baked in the following cases:
Baking settings:
Important: If this batch of modules is not baked within 168 hours, do not use the wave soldering to solder them. Because these modules are 3-level moisture-sensitive components, they are very likely to get damp when exposed outside. In this case, if they are soldered at high temperatures, it may result in component failure or poor soldering.
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.
Perform mounting with the SMT based on the following reflow oven temperature curve. The highest temperature is 245°C. The reflow temperature curve is as below:
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.
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.
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-TYWE3L. The end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID: 2ANDL-TYWE3L”.
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.