Hello everyone, I need help in coding this , I am doing a project using 4 sensors, flow sensor YF-S201 to detect changes in flow rate, I am also using sound sensor with LM386, human presence sensor with LD2410C and leak sensor LGZDV1.1, I want to use one Arduino board to read their analogue inputs and send their outputs as messages through RF433 radio transmitter. the receiver is on another Arduino, which means there will be coding for transmitting Arduino and the receiver Arduino. the messages are read through a serial monitor. I will be glad getting help Thank you
Please post the code You have and we will post suggestions.
Schematics are also needed.
Forum is not a free give away institution coding for You.
If You have a good budget You can pay for coding. Search forum for that section.
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Post your best attempt at the code, following the instructions in the "How to get the best out of this forum" post, and explain where you are having difficulties.
To distinguish between multiple sensors, most people put a unique identifier in the transmit data buffer, which otherwise has a common format for all sensors.
Maybe with fields something like
[sensorID,date,time,packetNumber,batteryVoltage,data1,data2,data3,checksum]
Naturally, transmissions must be spaced in time so that transmissions from different sensors rarely if ever overlap, as those will be lost.
My best help is to encourage you to begin your project by getting JUST the communications part working and reliably communicating. Then adding the sensor information, one at a time will be SO MUCH EASIER!
using two microcontrollers plus inter process communication makes the task an order of magnitude more difficult
use a single more powerful microcontroller? e.g. ESP32, Raspberry Pi Pico, Teensy, etc
@azubine had told us that the sensors are remote from the monitoring station and that RF433 transmitter & receiver will be used. So two MCUs will be needed.
thank you