CMCU-09: Wireless Strain Gauge Measurement with 1-to-1 and 1-to-Many Communication

1.Introduction

The CMCU-09 is an industrial-grade single-channel wireless strain gauge acquisition module launched by Shenzhen RunesKee Technology Co., Ltd. It consists of a transmitter and a receiver, supporting not only conventional one-to-one and one-to-many wireless transmission but also the differentiation of multiple wireless channels. This enables the coexistence of multiple networks in the same application environment without mutual interference. Compact, stable, and reliable, it is suitable for equipment control, sensor data acquisition, and communication with devices via the RS485/TTL/USB serial port of the receiver board.

Features include:

Power supply range: DC 3.7V~12V. Low operating voltage supports lithium battery power as low as 3.7V, making it ideal for confined spaces.
Operating environment: -40℃ to 85℃.
Channel capacity: Supports 1 full-bridge strain gauge.
Low power consumption: Below 0.1W.
Communication format: Baud rate 9600 (configurable), 8 data bits, 1 stop bit, no parity.
Communication protocol: RS485 MODBUS-RTU protocol, supporting function codes: 03, 06, 16 (0x10).
Resolution: 1/50,000 scale division.
Address range: 1-247, default is 1.
Configurable parameters include sampling frequency, scale value, baud rate, zero-tracking range, zero-tracking enable, average filtering, dynamic tracking range, and creep tracking, making it adaptable to most applications.

For a quick start guide after receiving the device, refer to "CMCU09-Wireless Strain Gauge Transmitter-Quick Operation Guide."

2.Hardware Specifications

2.1 Hardware Parameters

2.2 Hardware Parameters

Wireless Acquisition Board

Wireless Transparent Transmission Board

2.3 Hardware Dimensions

3.One-to-One Wireless Communication Instructions
3.1 Preparation Checklist

3.2 Connect the strain gauge sensor to the CMCU-09 acquisition board.

3.3 Install the battery on the acquisition board and connect the wireless transparent transmission board to the computer using a USB cable. Below is the complete wiring diagram:

4.One-to-Many Wireless Communication Instructions