OSH Park
Profile for Mooper
Shared projects
Power on/low battery indicator V3
by
Mooper.
2
layer board of
0.45x0.38
inches
(11.40x9.73
mm).
Shared on
February 29th, 2016 05:02.
Based on daftmike’s low battery indicator mk2.
Parts list: http://www.digikey.com/short/335zvz
Power on/low battery indicator V2
by
Mooper.
2
layer board of
0.56x0.51
inches
(14.12x12.90
mm).
Shared on
February 29th, 2016 03:19.
Based on daftmike’s low battery indicator mk2.
Parts list: http://www.digikey.com/short/335zwm
Pam8403 Audio amp
by
Mooper.
2
layer board of
1.49x0.69
inches
(37.77x17.48
mm).
Shared on
February 27th, 2016 04:07.
with volume control and switching headphone jack.
Input voltage: 2.5 to 5.5
Jump R3 & R6 to use the full power of the amp, otherwise use the 2 voltage dividers R3-R4 & R5-R6 to lower the inputs. Useful for lower wattage speakers or to prevent distortion.
The 10k resistors under the volume wheel need to be 20% the resistance of the volume wheel. If you aren’t using a 50k pot, adjust accordingly. These serve to convert a linear taper pot to a logarithmic pot.
All components 0805
Volume wheel used is B503 16mm
Headphone jack: 35RASMT4BHNTRX
Wasp SD card replacement + SDGecko
by
Mooper.
2
layer board of
3.02x1.26
inches
(76.61x31.90
mm).
Shared on
February 14th, 2016 02:46.
Based on Bentomo’s micro SD wasp replacement: https://oshpark.com/shared_projects/FhOnpaqE
Power on/low battery indicator
by
Mooper.
2
layer board of
0.63x0.73
inches
(15.88x18.44
mm).
Shared on
July 24th, 2015 23:04.
Based on daftmike’s low battery indicator mk2.
Parts list: http://www.digikey.com/short/t3081n
SMD LEDs can be soldered directly or other LEDs can be wired to the pads.