Ai-Thinker TB-04 BLE Module
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Ai-Thinker TB-04 BLE Module
The TB-04 is a high-performance BLE module designed for IoT applications like smart lighting, industrial control, and consumer electronics. Utilizing Bluetooth 5.0, it supports mesh networking for seamless communication, even in complex networks. Its compact design and low power consumption make it ideal for battery-powered devices. With multiple interfaces (GPIO, PWM, SPI, ADC), 10 dBm transmission power, and -93 dBm sensitivity, it ensures reliable performance. The 6 PWM channels and brightness adjustment make it perfect for smart lighting solutions.
Features
- Bluetooth Mesh Networking: Supports mesh networking, enabling devices to communicate through a peer-to-peer star network.
- Efficient Communication: Utilizes Bluetooth broadcasting to ensure responsiveness, even with multiple devices.
- Low Power Consumption: Designed with the BT5.0 low-power module based on the TLSR8250 chip.
- Compact Design: Features SMD-20 package for easy integration into various applications.
- PWM Outputs: Supports 6 PWM output channels, enabling versatile control options.
- External Antenna Support: Includes through-hole pads for connecting an external spring antenna.
- Brightness Adjustment: Allows brightness (duty cycle) adjustment range of 5% to 100%.
Specifications
| Parameter | Details |
|---|---|
| Model Number | TB-04 |
| Dimensions | 12.2 x 13.0 x 2.3 mm (±0.2 mm) |
| Package | SMD-20 |
| Wireless Standard | Bluetooth 5.0 |
| Frequency Range | 2400 ~ 2483.5 MHz |
| Maximum Transmission Power | 10 dBm (maximum value) |
| Receiver Sensitivity | -93 dBm ±2 |
| Interface | GPIO / PWM / SPI / ADC |
| Operating Temperature | -20°C to 70°C |
| Storage Environment | -40°C to 125°C, <90% RH |
| Supply Voltage Range | 2.7V ~ 3.6V, supply current ≥ 50 mA |
| Power Consumption | - Deep Sleep Mode: 0.8 µA |
| - Idle Mode: 1.8 µA | |
| - Transmission (10 dBm): 20.69 mA |
Product Details
Pin Descriptions
| Pin Number | Name | Function Description |
|---|---|---|
| 1 | ANT | Antenna Interface |
| 2 | RST | Reset Pin |
| 3 | NC | Not Connected |
| 4 | C4 | PWM2 Output / UART_CTS / PWM0 Reverse Output / SAR ADC Input / GPIO PC4 |
| 5 | C1 | I2C Serial Clock / PWM1 Reverse Output / PWM0 Output / GPIO PC1 |
| 6 | C0 | I2C Serial Data / PWM4 Reverse Output / UART_RTS / GPIO PC0 |
| 7 | B7 | SPI Data Output / UART_RX / SAR ADC Input / GPIO PB7 |
| 8 | B6 | SPI Data Input (I2C_SDA) / UART_TX / SAR ADC Input / GPIO PB6 |
| 9 | B5 | PWM5 Output / SAR ADC Input / GPIO PB5 |
| 10 | B4 | PWM4 Output / SAR ADC Input / GPIO PB4 |
| 11 | 3V3 | 3.3V Power Supply |
| 12 | GND | Ground |
| 13 | RXD | PWM0 Reverse Output / UART_RX / GPIO PA0 |
| 14 | TXD | PWM4 Output / UART_TX / SAR ADC Input / GPIO PB1 |
| 15 | SWS | Single-Wire Slave |
| 16 | A1 | GPIO PA1 |
| 17 | D7 | GPIO PD7 / SPI Clock (I2C_SCK) |
| 18 | D4 | GPIO PD4 / Single-Wire Master / PWM2 Reverse Output |
| 19 | D3 | PWM1 Reverse Output / GPIO PD3 |
| 20 | D2 | SPI Chip Select (Low Level Effective) / PWM3 Output / GPIO PD2 |
Effective Date: March 27, 2025
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2. Warranty Policy
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The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
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