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NRF24L01 based wireless monitoring system. Consists of WirelessBase and WirelessSensor modules. Primarely used as an intercom and a landline ring light indicator for people with hearing issues

Makefile 4.81% C 95.19%
nrf24l01 attiny84 ws2811 wireless-sensor wireless-base hearing hearing-impaired hearing-loss ring-indicator

nrf24l01monitoringsystem's Introduction

NRF24L01 Monitoring System

NRF24L01 based wireless monitoring system. Consists of multiple WirelessBase and WirelessSensor modules.

2.4GHz Wireless Dev Kit. Sensor board powered by CR2032 battery. Each sensor board has RJ11 input for landline phone line and three discrete/analog inputs, discrete outputs for other use. Sensor module detects phone ring and input change events and broadcasts these to the base controllers. Each message transmitted includes battery voltage value.

Wireless base controller board powered by 12V DC. Controller drives LED strip WS2811. Color of light motion depends on activated sensor and its channel. Primarely used as an intercom and a landline ring light indicator for people with hearing issues.

You need to assighn unique board IDs to each sensor board (see wirelessSensor/Makefile) and include these to wirelessBase too.

Assembled sensor top

Assembled sensor bottom

Assembled base

Wireless Sensor board schematics

Wireless Base board schematics

JLCPCB PCB

Original schematics and some pictures can be found here

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