Note: this document is a technical monograph-style summary and practical guide for HW-133-v1.0 (hereafter “HW‑133”), covering specifications, electrical/physical interfaces, typical applications, integration guidance, troubleshooting, test procedures, and example designs. If you need PCB files, exact vendor part numbers, or firmware blobs, specify and I’ll provide a concise set of download steps and links.
init_i2c();
write_register(0x00, 0x01); // release sleep
delay_ms(10);
id = read_register(0x01, 2);
if (id != EXPECTED_ID) error();
, which allows for a significantly smaller footprint and lower output ripple ( Dimensions : Extremely compact at approximately 22mm x 17mm x 4mm www.daraz.com.bd Performance Review Compact Footprint Hw-133-v1.0 Datasheet
| Feature | Hw-133-v1.0 | FC-28 | YL-69 | HL-83 | | :--- | :--- | :--- | :--- | :--- | | Comparator | LM393 | LM393 | LM393 | None (only analog) | | Potentiometer | Yes | Yes | Yes | No | | Analog Output | Yes (AO) | Yes (AO) | Yes (AO) | Yes (AO) | | Digital Output | Yes (DO) | Yes (DO) | Yes (DO) | No | | Typical Price | $1.50 | $2.00 | $1.80 | $1.00 | HW-133-v1