The possible causes of RF interference are increasing, some are obvious and easy to track, while others are very subtle and difficult to identify. Although careful design of base stations can provide
1. Circuit parameters
1. Charging power source: If it is a USB power source, the rated voltage is 5V.
2. Determine the capacity and voltage parameters of the battery to be used. If you use 18650, you
Do you know what the reason is? My file name and directory are correct, but now it gives an error. I have been busy for a long time but still can't solve it.
It seems like earthquakes are happening everywhere. Sichuan just experienced a magnitude 6 earthquake, and Japan was hit by an earthquake and tsunami. The loudspeaker warning during the Sichuan earthq