Key facts
- Brand
- Dauxi
- Model
- KS103S
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- ZH
- Last added
- 2026-09-28
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Dauxi KS101B/KS103/KS103S Distance Sensor Technical Manual
The Dauxi KS101B/KS103/KS103S series are ultrasonic distance sensors with real‑time temperature compensation and up to 500 Hz detection frequency. They support I2C or TTL‑serial interfaces, offer configurable I2C addresses, and include built‑in noise‑reduction modes for reliable operation in noisy environments.
The manual provides detailed functional summaries, electrical parameters, pin connections, I2C address programming procedures, multi‑range detection commands, temperature and light‑intensity measurement methods, as well as example code for STM32 and other microcontrollers. This manual is written in Chinese.
Dauxi KS103S specifications
| Working voltage | 3.0 V ~ 5.5 V |
|---|---|
| Typical working current | 1.6 – 2.7 mA @5 V |
| Sleep current (max) | 500 µA @5 V |
| I2C address range | 0xD0 ~ 0xFE (excluding 0xF0,0xF2,0xF4,0xF6) |
| I2C communication speed | 50 ~ 100 kbit/s |
| Detection frequency | up to 500 Hz |
| Detection range (KS101B) | 1 cm ~ 800 cm |
Source: Dauxi KS101B/KS103/KS103S Distance Sensor Technical Manual
All Dauxi KS103S documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How can I change the I2C address of the module?
Use the change_i2c_address function with the sequence 0x9A, 0x92, 0x9E and then write the new address, as shown in the manual.
What is the default I2C address of the modules?
The default 8‑bit I2C address is 0xE8, which corresponds to the 7‑bit address 0x74.