OSH Park
Profile for epccs
Shared projects
15214^1
by
epccs.
2
layer board of
1.00x0.55
inches
(25.43x13.97
mm).
Shared on
March 14th, 2016 05:36.
OneShot
One-Shot or Pulse Extender on Current Loop (used for position sensing).
14140^1
by
epccs.
2
layer board of
3.40x2.10
inches
(86.39x53.37
mm).
Shared on
February 24th, 2016 04:43.
RPUno
Solar Powered 328P[B] Programmed with Arduino
14145^2
by
epccs.
2
layer board of
2.38x2.10
inches
(60.33x53.37
mm).
Shared on
February 18th, 2016 06:23.
RPUftdi
Shield for full duplex RS-422 over CAT5 with USB for a host. Its a multidrop bus that works with serial bootloaders (e.g. optiboot, xboot… ) and avrdude.
15098^1
by
epccs.
2
layer board of
1.70x1.55
inches
(43.18x39.37
mm).
Shared on
February 18th, 2016 06:22.
CC03
Uses an LT3652 buck charge controller, it is optimized to step down a 36 cell solar panel and charge a 12V SLA battery.
15362^0
by
epccs.
2
layer board of
0.90x0.55
inches
(22.89x13.97
mm).
Shared on
February 13th, 2016 07:51.
HT
This simple circuit transmits a 3mA or 10mA current loop value as a pulse, it is controlled with the venerable 555 timer connected to a capacitive moisture sensor and a thermistor. The current loop flows in a CAT5 pair that provides well-known transmission line effects and superior noise immunity. The current sensing resistor is also a termination for the transmission line.