As an advanced direct digital frequency synthesis technology, DDS technology uses digital control to generate multiple frequencies from a frequency reference source. It has the characteristics of high
As shown in the figure, the SMS message always returns ERROR; Using AT+CSQ, the return value is 18,99 AT+CIMI also returns correctly. Which expert can help analyze it? I am a novice learning ing~~~
I submitted a board, but it doesn't work. I don't know if there is something wrong with the schematic. 149 works on the development board, but it doesn't work on the board I soldered. The soldering of
Dim aa,bb,n,cc Dim s,oItem Dim i,j,ListView1 Set s=HMIRuntime.Tags("MyTag") aa=Split(s.Read,",",-1) Set ListView1=ScreenItems("ListTable") 'Fill the standard listview object with the recordset listvie