BLE Module

What is the coverage of the Tuya private mesh network?

The coverage is infinite in theory, and it is six hops by default.

What is the power consumption of a Bluetooth module?

The average power consumption of single-point Bluetooth mesh is 70ua, and the average power consumption of low-power tuyamesh is 3ua. For mesh, the current power consumption is higher, mA level

Which are the products that can be connected to the SIG mesh network?

1. Lighting category: 1–5 street lamps with forward compatible package types;

2. Electrical category: low-power live wire switches, and wireless switches;

3. Sensing category: door sensor, PIR, luminance, temperature and humidity sensor;

4. Large and small household appliances: general interconnected MCUs;

5. Others: gateways, remote controllers, and curtain motors.

Does Tuya provide Bluetooth modules with an external antenna?

Currently, only the TYBT2-IPEX module supports an external antenna.

What are the net pairing modes for Bluetooth modules?

Bluetooth modules connect to the network by sending broadcast or multicast messages to the app for net-pairing.

What is the difference between the Tuya mesh and SIG mesh?

SIG mesh is a Bluetooth public protocol, and Tuya mesh is a proprietary protocol.

How many devices can the SIGmesh network support?

One gateway in one mesh network;

One mesh network can support 128 devices by default;

One family can use 128 gateways, that is, 128 x 128 devices at most.

What is the effective distance for communication of your SIG mesh module?

One hop: travel through a wall at the distance of 10 m indoors, and 60 m outdoors. By default, up to three hops are available for the SIG mesh module.

What is the default PWM frequency of a light adjustment I/O pin on a Bluetooth module for lighting products?

The default PWM frequency is 8 kHz.On the Tuya Smart platform's Hardware Debug page, you can modify the PWM frequency to up to 20 kHz.

What is the power consumption of Bluetooth SIG mesh modules?

Constant transmission (Itx): 6.7 mA (0 dBm output power) Constant receiving (Irx): 6.3 mA IDC mesh connected: 7.4 mA Deep sleep mode 1 (Ideepsleep1): 1.2 μA (16 KB RAM is reserved.) Deep sleep mode 2 (Ideepsleep2): 0.4 μA (No RAM is reserved.)

Can the 6-hop Tuya private mesh network be modified?

Hello. I suggest that you contact your business manager. Tuya will evaluate and deal with your needs.

Does the TYBT4 module provide any port for connecting to an external antenna?

The TYBT4 module does not provide any ports for connecting to an external antenna, but the TYBT2-IPEX module does.

Which I/O port is used to send signals when the TYBT4 module is integrated with a single-way light?

The default I/O port 5 is used.

Can I use Tuya's Bluetooth devices to connect to another vendor's gateway?

No. Tuya's Bluetooth devices use private protocols.

What is the TYBT3 module?

TYBT3 is a low-power embedded Bluetooth module that Tuya has developed. It consists of a highly integrated Bluetooth chip (TLSR8267) and several peripheral circuits, with an embedded Bluetooth network protocol stack and robust library functions. TYBT3 also contains a low-power 32-bit microcontroller unit (MCU), BLE/2.4 GHz radio, 512 KB flash memory, 16 KB static random-access memory (SRAM), and nine multiplexing I/O pins.

What is the TYBN1 module?

TYBN1 is a low-power embedded Bluetooth module that Tuya has developed. It consists of a highly integrated Bluetooth chip (nRF52832) and several peripheral circuits, with an embedded Bluetooth network protocol stack and robust library functions. TYBN1 also contains a low-power 32-bit Cortex-M4 microcontroller unit (MCU), BLE/2.4 GHz radio, 512 KB flash memory, 64 KB static random-access memory (SRAM), and 11 multiplexing I/O pins. It supports up to four ADC inputs.

Can I develop the BT3L module firmware myself?

To use the MCU solution, download the MCU SDK to commission hardware and develop the MCU firmware yourself.

How much is the standby power consumption of BLE mesh module

The standby power consumption of BLE mesh module is around 70ua.

The difference between BLE and traditional Bluetooth

1. The reporting and issuing commands of BLE will be completed at the fastest speed. After the completion, the wireless transmission of BLE will be suspended (but it is still under acceptable status), which will be activated again for the next connection. In contrast, the connection of traditional Bluetooth is continuous.

2. There are only 3 BLE broadcast channels (divided to ensure that the network does not interfere with each other). Traditional Bluetooth has 32.

3. BLE only takes 3ms to ‘completes” a connection (ie, scans the devices, establishes links, sends data, authenticates, and ends properly). However, traditional Bluetooth requires hundreds of ms to complete the same connection cycle.

4. BLE uses very short data packets, which are mostly used in products with high real-time requirements but low data rates. The categories such as remote control types including keyboards, remote mouses, and sensor devices, also heartbeat belts, sphygmomanometers, temperature sensors are available. Traditional Bluetooth uses longer data packets and can be applied for larger data transmissions, such as voice, music, and higher data transmissions.

5. BLE has no power level. Generally, the transmission power is + 4dBm, and reaches a transmission distance of 70m in openning area. Traditional Bluetooth has 3 power levels, Class1, Class2, and Class3, which support 100m, 10m, and 1m respectively transmission distance.

The current value in the TYBT4 module datasheet is in the range of 10-19 mA, but the actual current value is higher than 28 mA. Why?

The datasheet provides the current value at 0 dBm. In practice, the current value is measured at 8 dBm, so it may be higher than 20 mA.

Does the TYBT3 module adopt the SIG mesh solution?

TYBT3 is a mesh module that uses Tuya’s protocols. TYBT3L is a SIG Bluetooth mesh module. You can use the TYBT3L module if needed.

The difference and relation between BLE and BLE mesh

Bluetooth mesh is not a wireless communication technology, but a network technology. Bluetooth mesh network relies on BLE. BLE technology is a wireless communication protocol stack used by Bluetooth mesh.

The advantages and disadvantages of Bluetooth mesh

Bluetooth mesh not only has low power consumption, but also has the characteristics of narrow frequency band. This is the advantage but also a disadvantage of Bluetooth mesh. Because Bluetooth mesh is not used to send audio and video. It is mainly used to transmit, maintain connections or send commands of closing or opening, which just uses few bandwidth. This is why the Bluetooth mesh cannot completely replace Wi-Fi although it has a long range.

What is the command delivery logic of the panel for a single Bluetooth gateway?

When a mobile phone communicates with a Bluetooth gateway, the mobile phone reports data to the cloud, which then delivers commands to the gateway.

What is the power consumption of a Bluetooth module?

0.45 W.

What are the functions supported by the products in the SIG mesh network?

The basic functions of the products in the SIG mesh network are almost similar to those of the Tuya private mesh network, and they are as follows:Device group: supports local group function;Scheduled time: supports local timing and local countdown;Third-party access: supports cloud interconnection via gateways and mainstream platforms. For now, no speaker is supported to directly control the products in the SIG mesh network;Quick operation for device lists: supported.

How much current is required to charge a 3.3 V TYBT4 module?

The minimum current is 13 mA.