1. Produk Langkungview
The HLK-B35 is a low-cost embedded UART-WiFi (serial-wireless network) module developed by Hi-Link Electronics. It integrates Wi-Fi and BLE capabilities into a single chipset, designed for low-power and high-performance Internet of Things (IoT) applications. This module allows traditional serial devices to transmit data over the Internet via a serial interface, utilizing a built-in TCP/IP protocol stack for seamless conversion between the user's serial port and a wireless network (Wi-Fi/BLE). The HLK-B35 provides a complete and rapid solution for network-enabled data transmission without requiring changes to existing device configurations.
Hi-Link provides extensive testing tools, documentation, and an APP Demo to facilitate quick familiarity and usage of the module. Flexible and customized development services are also available to meet specific customer requirements.
Video: HLK-B35 Module Overview jeung Demonstrasi
Gambar 1: Hareupeun view of the HLK-B35 module
Gambar 2: Balik view of the HLK-B35 module with pin labels
2. Setup jeung Instalasi
2.1 Konfigurasi Awal
Before proceeding with configuration, it is recommended to reset the module to its factory settings. If the module is already in factory mode, this step can be skipped.
- Pabrik Reset: On the baseboard, press and hold the ES0 key for over 3 seconds to restore the factory settings.
2.2 suplai kakuatan
The HLK-B35 module operates with a working voltage range of 2.1V to 3.63V. The typical operating voltagieu 3.3v.
2.3 Antarbeungeut hardware
The module features abundant peripheral interfaces for integration into various systems:
- 1x SPI (master/slave)
- 2x UART
- 5x PWM
- 16x GPIO
- 1x IIC (master/slave)
- 1x SDIO2.0 (slave)
Figure 3: HLK-B35 Test Board with labeled components (B35 Module, Status indicator, ES0, USB, USB power port, Reset)
Figure 4: HLK-B35 Module Pinout Diagram
Figure 5: HLK-B35 Module Dimensions Diagram (Units in mm)
3. Parentah Operasi
3.1 Modeu Komunikasi
The HLK-B35 module supports both Wi-Fi and BLE communication, allowing for flexible data transfer between these protocols. It can transfer data from Wi-Fi to Bluetooth or from Bluetooth to Wi-Fi.
3.2 Konfigurasi Jaringan
The module supports AP (Access Point) and STA (Station) modes, as well as BLE coexistence mode. BLE can assist in achieving fast Wi-Fi network configuration. Supported Wi-Fi security protocols include WPS, WEP, WPA, WPA2 Personal, WPA2 Enterprise, and WPA3.
3.3 Pangiriman Data
Traditional serial devices can connect to the HLK-B35 module and transmit their data over the Internet without requiring complex configuration changes. The module handles the conversion between the serial port data and the wireless network protocols.
Figure 6: HLK-B35 Internal Block Diagram
4. Pangropéa
No specific routine maintenance is required for the HLK-B35 module beyond ensuring stable power supply and proper environmental conditions as specified in the technical data. Keep the module free from dust and moisture.
5. Cara ngungkulan
5.1 Masalah konektipitas
- Henteu aya sambungan jaringan: Ensure the module is powered correctly (3.3V). Verify Wi-Fi credentials if operating in STA mode. Try performing a factory reset (press and hold ES0 key for >3 seconds) to clear any incorrect configurations.
- BLE Pairing Failure: Ensure the BLE device is within range and in pairing mode. Check for any interference from other 2.4GHz devices.
5.2 Data Transmission Problems
- Henteu aya Transfer Data: Verify the serial port settings (baud rate, data bits, parity, stop bits) match between your device and the module. Check the module's operating mode (Wi-Fi to BLE or vice versa).
- Data Intermiten: Check the stability of the power supply. Ensure the antenna is properly connected (if using an external antenna) and there are no obstructions affecting wireless signal strength.
6. Spésifikasi
| Fitur | Katerangan |
|---|---|
| Nomer modél | HLK-B35 |
| Ngaran Brand | Hai-Patalina |
| Métode Komunikasi | Bluetooth-Compatible (BLE5.0), Wi-Fi (802.11b/g/n) |
| Nagara Majelis | Ampir Siap |
| Kasaluyuan | Sadayana Cocog |
| Asalna | Daratan Cina |
| Sertifikasi | CE, FCC, RoHS |
| Chipset | BL602 |
| CPU | 32-bit RISC CPU jeung FPU |
| Frékuénsi Utama | 1MHz to 192MHz (DFS) |
| Ram | 276KB |
| Rom | 128KB |
| eFuse | 1KB |
| Embedded Flash Memory | 2 MB |
| Pasokan Voltage | 3.3V (2.1V ~ 3.63V) |
| TCP Client Connections | 1 |
| Jenis Jaringan Nirkabel | STA/AP |
| Rentang Frékuénsi | 2412-2484MHz |
| Ngirimkeun Daya | 0-15dBm (RF power up to 21dBm) |
| Narima Sensitipitas | -97dBm (typical -98dBm) |
| Antarbeungeut hardware | SPI, UART, GPIO, I2C, PWM, SDIO |
| Laju Baud | 100 ~ 921600bps |
| Jenis anteneu | External / Internal antenna |
| Suhu Gawé | Storage temp.: -40-30℃ (Note: This refers to storage temperature, typical operating temperature range is usually similar or slightly narrower) |
7. Tips pamaké
- The HLK-B35 module is versatile, capable of transferring data seamlessly between Wi-Fi and Bluetooth, making it suitable for various IoT applications.
- Utilize the provided testing tools, documentation, and APP Demo from Hi-Link to quickly understand and implement the module's functionalities. These resources are designed to help users get familiar with the module efficiently.
- For initial setup or if encountering unexpected behavior, a factory reset can often resolve configuration issues.
8. Garansi jeung Rojongan
Hi-Link Electronics is committed to providing comprehensive support for the HLK-B35 module. This includes:
- Dokuméntasi Téknis: Access to detailed manuals, datasheets, and application notes.
- Testing Tools & Demos: Software tools and demonstration applications to aid in development and testing.
- Customized Development: Flexible development services are available for specific customer needs and project requirements.
Kontak Rojongan
For further assistance, technical inquiries, or to obtain the latest documentation, please contact Hi-Link support directly. You can typically reach out via email (e.g., Bonnie@hlktech.com) or through their official channels on platforms like AliExpress.
