The module heats up during use. What should I do?

① Power supply voltage. Please check the power supply to ensure that it is between 1.8V and 3.6V. If it exceeds 3.6V, the module will be damaged;

② Stability. Check the stability of the power supply, the power supply must not fluctuate too much;

③ Anti-static. Ensure the anti-static operation during the installation and use of the power supply, high-frequency devices have electrostatic sensitivity;

④ Welding. The module can not be reflow soldered and wave soldered, otherwise it will damage the module.

The communication distance does not meet the ideal requirements during use. Where might the problem occur?

① Obstacles. Due to its physical characteristics, the 2.4G frequency band has poor penetration. When there is an obstacle in straight line communication, the communication distance will be greatly shortened;

② Interference source. Temperature, humidity, and electromagnetic wave interference in the same frequency band will lead to an increase in the packet loss rate of communication;

③ Antenna. The antenna uses 50Ω impedance wiring. If there is a metal object near the antenna or the module is placed inside the shielding case, it will cause signal attenuation;

④ CE foot. In the program configuration, the transmitting device is not kept at a high level, which leads to a decrease in sensitivity when receiving an answer signal;

⑤ Transmit power. When configuring registers, the higher the transmission power configuration, the farther the transmission distance will be;

⑥ Launch rate. If the configured transmission rate is too high, the transmission distance will be relatively reduced;

⑦ Low voltage. The power supply voltage is less than 3.3V, resulting in insufficient power supply to the module, which relatively affects the module's transmit power.

2.4G模组选型表：