
OSH Park
Shared projects
ESP Dev (Rev 1)
by
2
layer board of
1.39x0.60
inches
(35.26x15.24
mm).
Shared on
March 18th, 2016 12:53.
Basic ESP8266-01 programming/flashing/development board.
Sensor Shield Version 1
by
2
layer board of
1.01x1.35
inches
(25.60x34.21
mm).
Shared on
March 18th, 2016 00:31.
UM232R Clone
by
2
layer board of
1.31x0.72
inches
(33.20x18.29
mm).
Shared on
March 17th, 2016 23:02.
Minimal UM232R clone for Loudet SID RX
SAW Filterboard
by
2
layer board of
0.91x0.32
inches
(23.16x8.15
mm).
Shared on
March 17th, 2016 19:57.
SAW Filterboard for Murata RF1419D SM3838-8 Case
16052^0
by
2
layer board of
0.90x0.55
inches
(22.89x13.97
mm).
Shared on
March 17th, 2016 18:36.
MT
This current loop powered circuit transmits at 3mA or 10mA depending on the state of a 555 timer. The timing events can be used to remotely measure the capacitive Moisture sensor and a thermistor. The current loop works over a CAT5 pair (a well-known 100 Ohm transmission line) that provides superior noise immunity.