Shared Projects

Interface board for the DS1603NF ultrasonic liquid sensor. Powers the sensor and provides a 20mA constant current 2Hz flashing output for the cathode of an indicator LED. A pushbutton switch in the 12V supply interrupts power, which reboots the sensor and tests the flasher circuit.

Wiring: From the main bus, connect a fused wire to one side of the switch, and to the anode (+, long leg) of the indicator LED. Connect the other switch terminal to the “12V” pad, connect panel ground to the “GND” pad, and connect the cathode (-, short leg) of the indicator LED to the “LED” pad. An LED current-limiting resistor is not needed.

BILL OF MATERIALS:
C1-C3: Vishay K104K15X7RF5TL2 0.1uF 50V X7R Radial Ceramic Capacitor
C4-C5: TDK Corp. FG14X7R1E475KRT06 4.7uF 25V X7R Radial Ceramic Capacitor
D1: Cree, Inc. C503B-RAN-CA0C0AA2 Clear Red LED, 5mm, 2.1V, 20mA, 22,450mcd
J1: JST S4B-XH-A-1(LF)(SN) 4-Position 2.5mm Right Angle Shrouded Header
Q1: Microchip VP2106N3-G 60V 250mA P-Channel MOSFET, TO-92-3
R1-R3: Stackpole RNMF14FTC47K0 47k-Ohm 1/4W 1% Axial Resistor
S1: Pushbutton Switch, Latching Type (Installer’s Choice)
U1: Texas Instruments SE555P Single Timer/Oscillator IC, 8-DIP
U2: Microchip CL520N3-G 20mA Linear LED Driver IC, TO-92-3

Interface board for the DS1603NF ultrasonic liquid sensor. Powers the sensor and provides a 12V output under normal condition and a grounded output under low fuel alarm condition.

Wiring: From the main bus, connect a fused wire to the “12V” pad, connect panel ground to the “GND” pad, connect a momentary pushbutton switch between the “PTT” pad and ground, and connect the “OUT” pad to an EFIS alarm input.

BILL OF MATERIALS:
C1: Vishay K104K15X7RF5TL2 0.1uF 50V X7R Radial Ceramic Capacitor
C2: TDK Corp. FG14X7R1E475KRT06 4.7uF 25V X7R Radial Ceramic Capacitor
J1: JST S4B-XH-A-1(LF)(SN) 4-Position 2.5mm Right Angle Shrouded Header
Q1: Microchip TN2106N3-G 60V 300mA N-Channel MOSFET, TO-92-3
R1-R2: Stackpole RNMF14FTC4K70 4.7k-Ohm 1/4W 1% Axial Resistor
S1: Pushbutton Switch, Normally Open, Momentary Type (Installer’s Choice)

https://github.com/Karpova-Lab/camera-link. Link between pyControl and Chameleon3 USB3 camera.

LPC812 breakout PCB

Pressure sensor-based CW paddles that harvest their power supply from the keying line. Designed by David VK3IL and uploaded here with his permission.

Arduino board to detect oxygen and report by website or LCD display.

WWV 3 band Receiver Ver 1.11

PCB for the HestiaPi ONE

STM32WB5MMG host + LBAD00X1SC cellular modem with GNSS for low-power asset tracking worldwide.

See project on my github

Audio shield with line and mic inputs. This is for the Digilent Arty or an Arduino.

Documentation is here:

https://github.com/clydeshappee/ArtyAudio

[email protected]

8 Channel Controller

Robyn’s first circuit board design! This was the third version, with the soldermask and silk reversed. Why? Because we ordered the final boards for our kits with white soldermask and blue silkscreen - we wanted the cloud to be very solid white, and many times white silkscreen can be a bit blotchy. So we switched it up!

Documentation on Hackaday.io: https://hackaday.io/project/177153-happy-rain-cloud Happy Rain Cloud v3 kits with blue skies available on Tindie: https://www.tindie.com/products/alpenglow/happy-rain-cloud-soldering-kit/

Robyn’s first circuit board design! This was the first version, with the cloud in outline form.

Documentation on Hackaday.io: https://hackaday.io/project/177153-happy-rain-cloud Happy Rain Cloud v3 kits with blue skies available on Tindie: https://www.tindie.com/products/alpenglow/happy-rain-cloud-soldering-kit/

Robyn’s first circuit board design! This was the second version, with the cloud filled in, in white silkscreen.

Documentation on Hackaday.io: https://hackaday.io/project/177153-happy-rain-cloud Happy Rain Cloud v3 kits with blue skies available on Tindie: https://www.tindie.com/products/alpenglow/happy-rain-cloud-soldering-kit/