STM32 Arm projects, you can use the dimensions of the printed circuit card a useful development circuit is quite small and single-sided snow on the USB I2c links to reset the input outputs RS232 SWD, etc, you have to boot the buttons have a circuit diagram and pcb artwork in addition to the picture format That has the source drawings with Cad program.
Source: uschema.com/forum/viewtopic.php?f=26&t=3294 alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-18431.zip
Published: 2012/01/26 Tags: avr development board, development board projects
Microphone Input 4 Channel Mixer Amplified Circuit
Mixer circuit 2 x microphone input and audio input 4. It’s a good thing the printed circuit layout easier to use with the optional sürügülü potentiometers normal potentiometer can also be used, but in this case is made or additional cable with additional pcb is prepared. Mixer circuit direct op amp can be connected to this output amplifier input (tl072) output. This output is at the same time, with the additional amplifier IC TDA2822M selector key using the headphone output or 1 .. TDA2822M 2w speaker can be connected.
STM32 Arm Projekte können Sie die Abmessungen der Leiterplatte verwenden, eine nützliche Entwicklungsschaltung ist ziemlich klein und einseitig Schnee auf den USB-I2c-Links, um die Eingangsausgänge RS232 SWD zurückzusetzen, usw. Sie müssen die Tasten booten haben eine Schaltung Diagramm- und Leiterplattengrafik zusätzlich zum Bildformat Das hat die Quellzeichnungen mit Cad-Programm.