I am a beginer and i have made rc circuits using holtek chips ht640 and ht648l for 8 bit data transfer and low cost 433mhz rf module.My application is just to make an rc car .I wanted to use 2.4 ghz rf module in place of 433mhz so i found the nrf24l01 but everywhere it is shown to be working with adruino.I need help to just replace it in my holtek chip circuits so i am confused with the pins and connections and more information if possible .plzz help asap.
You can’t use the NRF24L01 with the Holtek chips. They are completely incompatible.
Use the chips with ASK/OOK modules, as they were intended.