OSH Park
Profile for sjm
Shared projects
ARINC 717 Receiver
by
sjm.
2
layer board of
0.97x0.76
inches
(24.61x19.20
mm).
Shared on
July 3rd, 2016 23:41.
Line interface for an Altera EP2C5T FPGA development board
Power Supply LCD
by
sjm.
2
layer board of
1.73x1.03
inches
(43.92x26.11
mm).
Shared on
June 8th, 2016 22:41.
PIC16F88 micro-controller driving an old Optrex 16x2 LCD to display 3 voltages and 2 currents. Currents are measured using MAX4172 high side sensors and negative LCD contrast voltage is generated with a PWM based charge-pump.
DC Load Controller
by
sjm.
2
layer board of
1.77x0.49
inches
(45.01x12.42
mm).
Shared on
June 1st, 2016 02:41.
Controller for constant current DC load
AF Amplifier
by
sjm.
2
layer board of
0.88x0.88
inches
(22.30x22.30
mm).
Shared on
June 1st, 2016 02:41.
Amplifier for smart phone signal generator
ARINC 429 FPGA Receiver
by
sjm.
2
layer board of
2.49x0.99
inches
(63.22x25.22
mm).
Shared on
April 25th, 2016 04:16.
An Altera Cyclone II FPGA decodes both high and low speed ARINC-429, sending time-stamped data to a remote terminal.