Hw-133-v1.0 Datasheet ((new)) -

This reference datasheet provides the technical specifications, pinout, circuit operation, and application guidelines for the HW-133-V1.0 hardware revision. Technical Specifications

The module delivers robust performance numbers despite its miniature form factor. Its core operational benchmarks include: Specification Details Monolithic Power Systems MP1584EN (or equivalent GW1584) Input Voltage Range ( Vincap V sub i n end-sub ) 4.5 V to 28 V DC Output Voltage Range ( Voutcap V sub o u t end-sub ) 0.8 V to 20 V DC (Adjustable via onboard potentiometer) Maximum Output Current ( Ioutcap I sub o u t end-sub ) 3.0 A (Peak), 1.5 A to 2.0 A (Continuous without heat sink) Peak Conversion Efficiency Switching Frequency 1.0 MHz (Typical) to 1.5 MHz (Maximum) Output Voltage Ripple Quiescent Current Operating Temperature -45 °C to +85 °C Physical Dimensions

Set a digital multimeter to DC Voltage mode and place the probes across the and OUT- pads. Hw-133-v1.0 Datasheet

A small, top-actuated potentiometer used to adjust the output voltage. Turning counter-clockwise lowers the output voltage.

The HW-133-v1.0 doesn't exist in a vacuum. It competes with a wide range of generic step-down modules. Here’s a quick comparison: A small, top-actuated potentiometer used to adjust the

Unregulated DC supply input (4.5V to 28V).

Reports from electronics hobbyist communities suggest the HW-133 is a superior alternative to the common LM2596 buck converter for battery-powered applications: It competes with a wide range of generic step-down modules

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

Use a precision flathead screwdriver to slowly rotate the brass adjustment screw on top of the trimmer. Counter-clockwise (CCW): Lowers the output voltage. Clockwise (CW): Raises the output voltage. Verify Stability: Once the desired target voltage (e.g.,

| Parameter | Value / Range | | :--- | :--- | | | 3.3V – 5.5V DC (Typically 5V) | | Current Consumption | < 20 mA | | Output Type | 2x Outputs: Digital (TTL) & Analog (Voltage divider) | | Digital Output Logic | 0V (Low) when water detected / 5V (High) when dry | | Analog Output Range | 0V (water covered) to VCC (completely dry) | | Comparator Chip | LM393 (Open collector/comparator) | | Sensitivity Adjust | 10kΩ Potentiometer (onboard) | | Operating Temperature | -25°C to +85°C | | Board Dimensions | 65mm x 20mm (Sensor PCB) + 38mm x 15mm (Control PCB) |