![]() The ISD1820 chip has a Resistor Controlled Oscillator input (ROSC) input. LED Output – Normally HIGH, goes LOW when LED is lit In this mode of operation, any audio picked up by the mic will be sent directly out to the speaker REPEAT Switch – if moved to the right will play the recorded message continuously.įT Switch – if moved to the right will enable a Feed Thru mode of operation. Pressing the pushbutton will play the recorded message until the button is released or the EOM is reached. When pin goes HIGH, the message will play until the pin is set back to LOW or the EOM is reached. Pressing the pushbutton will play the entire recorded message. When EOM is reached the red LED will flash. The pin can be set LOW while message plays and it will not terminate the message. The recording will play until the EOM is reached. PLAY Edge – Pin is edge activated when it transitions to HIGH. Release the button to stop the recording. Pressing and holding down the pushbutton will also record a message. Once the pin goes LOW or it runs out of memory, an End-Of-Message (EOM) marker is automatically recorded. RECORD – Pin is active HIGH to start recording and must remain high while the recording is in process. Functions such as Record, PlayE and PlayL can be activated by pushing a button or input a logic HIGH on the header pin with the same name. The main features of the module are shown below. The message can be rerecorded up to 100,000 times and is non-volatile.Ī small built-in audio amplifier can drive an 8 ohm speaker. This can be extended up to 20 seconds with a resistor change. With the built-in microphone, you can record one message that is up to 10 seconds long. Duration and sample rate can be modified up to 20 seconds with resistor change. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |