Data transmission method and device, electronic device and electronic equipment

The invention provides a data transmission method and device, an electronic device and electronic equipment. The transmission method comprises the following steps: when a first control signal is at a low level, judging whether a second control signal is changed from a high level to a low level, and when the second control signal is changed from the high level to the low level, sending a frame header to a receiving end; after the frame header is sent to the receiving end, continuing to judge whether the second control signal is changed from the high level to the low level, sending effective data to the receiving end under the condition that the second control signal is changed from the high level to the low level, continuing to judge whether the second control signal is changed from the high level to the low level, and sending the effective data to the receiving end. And under the condition that the second control signal is changed from the high level to the low level, continuing to send the next valid data to