(bacopa-hardware)= # Bacopa: 6-Channel LED Driver / Carrier for Buce ```{figure} ./images/blm06-cover.jpg :name: blm06mk2-appearance :alt: Bacopa Module Appearance :align: center :width: 50% The Appearance of Bacopa Module ``` ## Overview Bacopa is the LED driver/carrier board for the Buce 6-channel WiFi LED controller (BLC06). Engineered with premium components and careful design, Bacopa delivers 700 mA constant-current output per channel, capable of driving a total of up to 162 W of LEDs (approximately 54 × 3 W high-power LED beads). Under the control of the Buce LED controller's 6-channel phase-shifted interleaved output, 12-bit duty cycle resolution, and up to 19.5 kHz ultra-high-frequency PWM dimming signal, completely flicker-free smooth dimming is achieved while fully eliminating audible noise from inductors and ceramic capacitors. BLM06 integrates reverse-polarity protection circuitry and a current sensor. In conjunction with the Buce controller, it provides not only up to 130 W constant-current power output but also reverse-polarity, over-temperature, and over-current protection. Combined with the companion controller's multi-segment programmable dimming, astronomical algorithm-based sunrise/sunset simulation, moonlight simulation, adaptive thermal management, and LED power monitoring, it serves as the ideal core hardware for premium aquarium luminaires, indoor agriculture/horticultural lighting, and smart lighting applications. ## Features - Wide input voltage range: 6 to 36 V - Constant-current output voltage range: 2 to 32 V - 6-channel independent 700 mA LED constant-current output - Maximum continuous output power of 130 W (equivalent to 162 W industry rating) - Efficiency up to 97% - Reverse-polarity, over-temperature, and over-power protection - 4-layer PCB with shielded integrated inductors for EMI suppression - On-board TI INA139 high-side current sensor - Compact credit-card form factor: 85 × 42 mm - Easy-to-install 2.0 mm board-to-board/ribbon connectors and screw terminals - DIN35 rail mount via accessory bracket Please checkout the following datasheets for more information about the hardware. ## Usage ### Pinout ```{figure} ./images/pinout.svg :name: buce-gds :alt: Buce Pinout Diagram :align: center :width: 80% Pinout Diagram ``` | Port# | Name | Type | Description | | :----: | :--- | :--- | :---------- | | ① | Power | 3.81 mm Screw Terminal | 6–36 V power supply positive and negative inputs; terminal rated for up to 10 A | | ② | PWM Signal Output | 2.0 mm Board-to-Board Connector | Optional parallel PWM signal output for daisy-chaining multiple driver modules | | ③ | Constant-Current Power Output | 3.81 mm Screw Terminal | Constant-current output for driving LED strings; connect one independent LED string circuit per group | | ④ | 2-Wire Fan Drive Output | 2.0 mm Board-to-Board Connector | 12 V two-wire fan speed-control drive output; direct fan connection supported | | ⑤ | PWM Fan Output | 2.0 mm Board-to-Board Connector | 12 V four-wire fan power output; direct PWM fan connection supported | | ⑥ | NTC Input | 2.0 mm Board-to-Board Connector | Connection for 10 kΩ, B3950 NTC thermistor | | ⑦ | Button Input | 2.0 mm Board-to-Board Connector | Optional button for temporary lighting toggle and long-press network reconfiguration | ### Typical Peripheral Circuit ```{figure} ./images/bacopa-wiring-cv.png :name: bacopa-wiring-diagram :alt: Typical Circuit Diagram :align: center :width: 90% Typical Circuit Diagram ``` ## Resources ### Datasheet