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1.6 KiB
1.6 KiB
LoRa PLAN
System Architecture
Objectives
- Available
- Reliable
Devices
- VPS x1
- Gateway(Raspberry Pi / NodeMCU) x1
- ..LoRa Module x3
Features
- Cost: around ￥600 except Sensors and Raspberry Pi
- Ground Sensor Nodes Low Power
- Air Sensor Node Low Power
- Simple Network Topology
- Provide HTTP and WebSocket API, Easy to support a Website/App Demo Page
- The Sensor unit are flexible to move
- Security and Privacy
Shortages
- Cost a lot
- Need to learn a lot about LoRa
- The water pump is not wireless, not so convinence
- Waterproof still need to be solved
Fake LoRa PLAN
System Architecture
Objectives
- Available
- Reliable
Devices
- VPS x1
- Gateway(Raspberry Pi / NodeMCU) x1
- ..SI4438 x5
- ..MCU(Nano / STM32 / NodeMCU) x2
- Low Power MCU (LPMCU) x2
Features
- Cost: around ￥300 except Sensors and Raspberry Pi
- Ground Sensor Nodes Low Power
- Simple Network Topology
- Provide HTTP and WebSocket API, Easy to support a Website/App Demo Page
- Both the Water Pump unit and the Sensor unit are flexible to move
- Easy to dev
Shortages
- There maybe noise in 433MHz as it is an open frequency
- The security and privacy are hard to guarantee
- Waterproof still need to be solved
Other Materials
MCUs for Low Power Purpose
- Arduino Nano (Remove micro USB Module and LED)
- Arduino Pro Mini (Remove LED)
Power Consumption for MCUs
