How to update the led display every day? We want to make a display screen that updates the weather forecast every day. . It is far from the computer. Is there any way to update every day?

1, distance10 ~ 30m, no shelter. You can use wireless modulation to convert serial port hardware, a set of about tens of dollars (but I know the price of N years).

2. The distance is 50 ~ 200m, which can be slightly blocked. With zigbee technology, buy a set of finished hardware from zigbee to serial port, which is about 100+.

3, use GPRS, the distance is not limited, the finished product is about 300 or more, and it is charged according to the flow or monthly subscription.

Of course, the above methods can be integrated into LED at design time, so the cost is lower.