Hw-133-v1.0 Datasheet _verified_ Jun 2026

I’ve got a board marked "HW-133-v1.0" and I’m trying to find a proper datasheet. I think it’s a PIR motion sensor module (similar to HC-SR501), but the pinout and jumper settings seem a bit different.

: Its ultra-small size makes it an ideal replacement for the bulkier LM2596 modules in space-constrained projects like small robots or drone builds. High-Frequency Stability Hw-133-v1.0 Datasheet

const int DIGITAL_PIN = 2; // DO pin const int ANALOG_PIN = A0; // AO pin I’ve got a board marked "HW-133-v1

The Hw-133-v1.0 datasheet is a detailed document that covers various aspects of the component, including: High-Frequency Stability const int DIGITAL_PIN = 2; //

The datasheet touts the capabilities of the HW-133 module, and here is how they hold up in reality:

The HW-133 v1.0 is an ultra-small 3A DC-DC buck converter based on the MP1584EN regulator, operating within a 4.5V to 28V input and 0.8V to 20V output range. It features up to 96% efficiency, thermal shutdown, and integrated soft-start, making it suitable for compact, battery-powered projects requiring high efficiency. Detailed specifications and usage notes are available on product listings at Amazon.ca . MP1584EN Módulo Step Down 3A DC-DC - UNIT Electronics