How do I calculate the RSSI of a 433Mhz transmitter? Is it possible with these sensors mentioned on this page: https://randomnerdtutorials.com/rf-433mhz-transmitter-receiver-module-with-arduino/.
Or do I need to get some other components?
Thank you so much for the help.
Might be an idea to tell us why you want to 'calculate the RSSI of a 433Mhz transmitter' ?
I want to measure the absorption and transmission properties of different materials when a RF is directed towards them.
Those simple modules are not going to be of much help.
You can use some radio modules as both a test transmitter and a simple field strength (RSSI) meter.
You can then do valid comparisons with this simple equipment, but it requires a fair bit of care and discipline to ensure that the RSSI meter is measuring what you intend it to. Also be aware that whilst this approach is adequate for relative comparisons, its not for not absolute measurements, unless you have the necessary calibration equipment.
I use my own simple RSSI meter for carrying out antenna comparisons as this process measures how the antenna actually performs in the real world which can be very different to the 'results' you get using simulations or fancy antenna tuning gizmos.
Its written up at the link below. Uses Arduino Pro Minis and LoRa modules for test transmitter and RSSI meter. The RSSI meter has the option to use a SSD1306 OLED or I2C connected LCD display;
Thank you for the help. I would look into the mentioned documents.