This document provides the technical specifications of KS101B/KS103/KS103S products, including functional summary and electrical performance parameters.
The KS101B/KS103/KS103S series are ultrasonic distance sensor modules with real‑time temperature compensation and up to 500 Hz detection frequency. They communicate via I2C, support up to 20 configurable addresses and offer optional broadcast address for the KS101B model.
The manual provides detailed wiring diagrams, I2C address configuration procedures, command tables for distance, temperature and light intensity measurement, as well as noise‑reduction and sleep‑mode settings. Example C code for 8051‑type microcontrollers is included to help developers integrate the modules quickly. This manual is written in Chinese.
| 工作电压 | 3.0V~5.5V |
|---|---|
| 工作时瞬间最大电流 | 10.6 mA @5.0V |
| 工作电流 (典型) | 1.6‑2.7 mA @5.0V |
| 休眠时最大耗电量 | 500 µA @5.0V |
| 工作温度范围 | -30 °C~+85 °C |
| 检测频率 | 最高 500 Hz |
| 默认 I2C 地址 (8 位) | 0xE8 |
| 可修改 I2C 地址范围 | 0xD0‑0xFE (除 0xF0‑0xF6) |
| 探测距离范围 (KS101B) | 1 cm‑650 cm |
| 探测距离范围 (KS103 / KS103S) | 1 cm‑550 cm |
Use the change_i2c_address function with the sequence 0x9A, 0x92, 0x9E and then write the new address, as shown in the manual.
The default 8‑bit I2C address is 0xE8, which corresponds to the 7‑bit address 0x74.
Send the I2C command 0x70‑0x75 to select the desired reduction level (e.g., 0x70 for level 1, 0x71 for level 2, etc.).