[Introduction]：The E01C-2G4M27D is a 2.4GHz DIP wireless module with a maximum transmit power of 500mW based on the domestic Si24R1.The module has built-in power amplifier (PA) and low-noise amplifier (LNA), which makes the maximum transmitting power reach 500mW, and the communication stability is greatly improved compared with the products.without power amplifier and low-noise amplifier, and the industrial-grade high-precision 16MHz crystal is used.