OSH Park
Shared projects
ATtiny85_breakout
by
HeliosV2.
2
layer board of
1.26x1.25
inches
(31.90x31.78
mm).
Shared on
February 1st, 2015 03:37.
Simple breakout for simple projects
Adj. Battery Power Supply
by
NDamen.
2
layer board of
2.24x1.30
inches
(56.82x33.02
mm).
Shared on
February 1st, 2015 00:02.
This is an adjustable, dual polarity, power supply running from batteries. Using the LM317 and LM337. Should supply +/-9 volts to +/-15 volts.
Differential Electroscope
by
davidk.
2
layer board of
1.06x1.15
inches
(27.03x29.08
mm).
Shared on
January 31st, 2015 21:51.
The Less Copper Edition. More information here.
mC OKRT/10Potato v1
by
miskol.
2
layer board of
2.16x3.73
inches
(54.91x94.72
mm).
Shared on
January 31st, 2015 21:14.
OKRT/10 board sized for 1590B
22mm A22-7135 (22mm 7135) v022
by
Red.
2
layer board of
0.88x0.88
inches
(22.28x22.28
mm).
Shared on
January 31st, 2015 17:57.
v022: Added pulldown cap which occupies part of the same physical space as the Zener.
Forum Thread: http://budgetlightforum.com/node/31930
0805 sized resistors & caps.
Requires that the positions marked 7135-A and 7135-B have at least one 7135 populated each. Requires that the 7135 next to R2 be populated for the voltage divider to work (eg LVP).
Single-cell component list:
- R1 - 22k 1% resistor
- R2 - 4.7k 1% resistor
- C1 - 5uF/10uF/whatever capacitor
- OTC - 1uF capacitor
- D1 - low Vf diode for polarity protection
Zener components:
- R1 - appropriate 1% resistor
- R2 - 4.7k 1% resistor
- C1 - 5uF/10uF/whatever capacitor
- OTC - 1uF capacitor
- R3 - appropriate 0805 resistor, such as 200 ohm
- Zener - appropriate SOD-123 zener, such as 4.3v