ghostintranslation
Well-known member
Hi,
I'm making a board compatible with Teensy 3.2 and Teensy 4.0 and both with the audio board (I left some space around) that provides headers to connect potentiometers, leds, buttons, ..., a dip switch, and a USB connector for the host mode.
I used headers to connect D- and D+ so in case I use a Teensy 3.2 I just don't connect anything there, but in case I use the 4.0 then I would solder the D- and D+ on the Teensy and connect the other end of the wires on the headers. I don't use the spring pins like it's done on the breakout board of Tennsy 4.0 because it's way too expensive to get.
I used headers also for the inputs/outputs so I can reuse the same board for different needs, no interface component soldered directly on the board.
The 3pin headers are meant to connect potentiometers, they are connected to the analog inputs. The 2pin headers are meant to connect either leds either buttons.
There is one 2pin header that is on the tx-rx pins to connect any serial component.
This board is meant to create synthesizers and music instruments, the dip switch is to select the MIDI channel.
I opened another thread to ask about the current limiting chip for the USB connector, to see if there is a through hole alternative but it looks like there is no so that's the only part with an SMD package.
I'd like to get some feedback on the schematics and board before I send it to a PCB manufacturer, maybe you will see mistakes that I didn't spot?
Thanks
I'm making a board compatible with Teensy 3.2 and Teensy 4.0 and both with the audio board (I left some space around) that provides headers to connect potentiometers, leds, buttons, ..., a dip switch, and a USB connector for the host mode.
I used headers to connect D- and D+ so in case I use a Teensy 3.2 I just don't connect anything there, but in case I use the 4.0 then I would solder the D- and D+ on the Teensy and connect the other end of the wires on the headers. I don't use the spring pins like it's done on the breakout board of Tennsy 4.0 because it's way too expensive to get.
I used headers also for the inputs/outputs so I can reuse the same board for different needs, no interface component soldered directly on the board.
The 3pin headers are meant to connect potentiometers, they are connected to the analog inputs. The 2pin headers are meant to connect either leds either buttons.
There is one 2pin header that is on the tx-rx pins to connect any serial component.
This board is meant to create synthesizers and music instruments, the dip switch is to select the MIDI channel.
I opened another thread to ask about the current limiting chip for the USB connector, to see if there is a through hole alternative but it looks like there is no so that's the only part with an SMD package.
I'd like to get some feedback on the schematics and board before I send it to a PCB manufacturer, maybe you will see mistakes that I didn't spot?
Thanks