Make GPRS module intelligent and easier to embed into applications. Currently, GPRS module suppliers each provide their own standard products. In the face of different industry applications, users mus...
It is required to realize the following contents, without digital display function: Time event action 8:00 The bell for the first class rings; delay 20S 8:45 The bell for the end of the first class ri...
When choosing a GPRS data transmission module, if you have used Sony Ericsson GSM module, please give your evaluation. In addition, among the Q24plus, G24, MC39I, and GR64 (Sony Ericsson), which one h...
[table][tr][td]1 Definition of ripple Since DC stabilized power supply is generally formed by AC power supply through rectification and voltage stabilization, it is inevitable that there are some AC c...
proyues' 74HC138 : 8 mutually exclusive low-active outputs ( Y0 to Y7 ) are provided by three inputs ABC . 3 enable inputs: two low-active ( E1 and E2 ) and one high-active ( E3 ). No low-level output...