RF24 | OSI Layer 2 driver for nRF24L01 on Arduino & Raspberry Pi
kandi X-RAY | RF24 Summary
kandi X-RAY | RF24 Summary
OSI Layer 2 driver for nRF24L01 on Arduino & Raspberry Pi/Linux Devices
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QUESTION
I am periodically reading the temperature and Humidity values from a DHT22 sensor in a green house tunnel.
The sensor is attached to a Arduino Pro Mini. The Pro Mini also has a nF24l01 transceiver attached to it, and the readings are transmitted to another nF24L01/Arduino Pro Mini in my office.
The Arduino is connected to a desktop PC via a USB serial cable.
The intention is to write the received Temperatue and Humidity readings to a file in a CSV format.
I am receiving all the data over the radio link which in-turn is feed to my PC via my USB port. I am running Node with a file called index.js.
Below is the code from the Arduino connected to the PC. It is the receiver side of the radio link.
...ANSWER
Answered 2022-Feb-21 at 11:03I did some changes to my code to check the contents of the const sensorData = tryParseJson(data) as shown below.
QUESTION
I am reading the data from a "Torque Wrench" using "USB Host Shield2.0" and Arduino UNO. I am receiving correct data from my "Torque Wrench" Data is receiving in a array.
But when I started reading data after "for" loop inside Void loop()
I am receiving incorrect data. I attached Both output pictures correct and incorrect data.
Basically I am read data from Torque Wrench and send to receiver using Nrf24l01. I am receiving incorrect data.
My question is :- Why I am reading Incorrect data outside "for" loop.
- Correct Data inside "for" loop :- enter image description here
- Incorrect Data outside "for" loop :- enter image description here
ANSWER
Answered 2021-May-19 at 06:58Character arrays must be null-terminated to count as C strings.
After the for loop, add text[rcvd] = '\0';
Also, your rcvd is fixed at 64. It needs to be one less than the array size for the null terminator to fit.
QUESTION
I'm trying to wrap arduino's RF24 functions into a simpler class that I could use more intuitively in the future, so I have made a .h file:
...ANSWER
Answered 2021-Mar-01 at 14:42You've declared a member function radio
that takes two int
s and returns a RF24
.
Declare radio
as a member variable in the same way as other member variables,
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