Releases: siderakb/mdbt-micro
MDBTMicro-50Q v1.4
MDBTMicro-50Q v1.3
Front | Back | |
---|---|---|
Added
- USB D+/- test pads added.
Changed
- Replace all capacitors, resistors and LEDs footprint back to 0603 again, except R5 and LD3.
Refer to the README for more information.
v1.3
produced and soldered, but not tested.
PCBWay sponsored and produced MDBTMicro-50Q v1.3
the silkscreen text height of v1.3
is only 0.8mm, but the printing is still very clear
the quality of the electropolishing SMD stencil is also very good
thanks again to PCBWay for supporting this project
I also published MDBTMicro on PCBWay's sharing platform
if you want to order the PCB, you can do it directly from the page
PCBWay also sponsored my another project: PMW3360 PCB
MDBTMicro-50Q v1.2
Front | Back | |
---|---|---|
Fixed
- Fixed the ProMicro board 2.54mm pin headers hole size from 0.7mm to 1mm.
Added
- LD3 VBUS power indicator.
Changed
- Move C1 and C2 away from the back of USB D+/- differential pair tracks.
- Reduce the size of board to 33.02 x 17.78mm (1.3 x 0.7 inch, same as ProMicro).
Refer to the README for more information.
v1.2
not yet produced and tested.
MDBTMicro-50Q v1.1
Preview
Front | Back | |
---|---|---|
Changed
- Replace all capacitors, resistors and LEDs footprint from 0603 to 0402.
- Replace X1 crystal footprint from 1610 to 3215.
- Replace SWD connector from 1.27mm pin header to test pad (TP8 ~ TP10).
- Q1 and Q2 P-MOSFET added.
- Q1 for LiPo battery load sharing.
- Q2 for output Vcc switch.
- 7 extra pins TP1 ~ TP7 added.
- Update the USB Type-C footprint.
Refer to the README for more information.
v1.1
not tested.
MDBTMicro-50Q v1.0
First release, not yet tested.
PCB Size: 18 * 33 (mm).
Front | Back | |
---|---|---|
Refer to the README for more information
I order panelization PCB (MDBTMicro_50Q_v1.0_panelization_gerber.zip
) from JLCPCB for 2 USD, and get 5*10 MDBTMicro-50Q boards.
SMT stencil (MDBTMicro_50Q_v1.0_stencil.dxf
) is 14.26 USD.