Hw-133-v1.0 Datasheet !full!

I’ve attached a photo of the board front/back.

Use a multimeter on the OUT+ terminals while turning the onboard trimpot. Clockwise: Increases voltage. Counter-clockwise: Decreases voltage. Hw-133-v1.0 Datasheet

HW-133-v1.0 DC-DC Step-Down (Buck) Converter module, typically based on the high-frequency switching regulator chip I’ve attached a photo of the board front/back

Dust and residue on the sensor pad can act like water. The datasheet implies pure water; reality says clean your sensor with alcohol regularly. making it ideal for battery-powered projects.

: Unlike linear regulators (like the L7805), the HW-133-V1.0 uses switching technology to minimize heat loss, making it ideal for battery-powered projects.