TIDA-011019
Rotary smart water meter with wM-Bus and LoRaWAN reference design
TIDA-011019
概述
This reference design, featuring the CC1312R7 and MSPM0L2117 MCUs, is a fully functional battery powered rotary smart water meter. The instantaneous and total flow is updated on the always on LCD display and sent out in a C-mode telegram over OMSv4.2.x wM-Bus protocol; while the rotary sensing and magnetic tampering detection are also implemented and optimized for minimal power consumption.
特性
- Always-on LCD display with up to 4×26 or 8×22 segments
- 3.9µA standby current: 42 active LCD segments + 0.03µA for power switch stand-by + 0.9µA CC1312R7 with pulsed output (rotation sensing not included)
- Inductive, and optical sensing support in a fourlayer, 50mm diameter circular FR4 PCB
- IrDA comms port and magnetic tamper detection
- OMS wM-Bus v4.2.x or later support with optional LoRaWAN radio (time-multiplexed)
- Population options for load switch powering an external LoRaWAN radio and a SPI flash device
我们开发的全面组装电路板仅用于测试和性能验证，不可用于销售。
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产品
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| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 设计指南 | Rotary Smart Water Meter With wM-Bus and LoRa WAN Reference Design | PDF | HTML | 2026-11-9 |