Shared Projects by Kevin-Knowles

Shared Projects by Kevin-Knowles

Crystal Oscillator Tester

2 layer board of 1.02 x 0.66 inches (26.0 x 16.8 mm)
Uploaded: July 21st 2020
Shared: August 17th 2020
Total Price: $3.35

This is a Colpitts oscillator + amplifier for testing crystals. The original circuit is by Alan Wolke W2AEW. I've adapted it slightly for SMD parts. Alan's video can be seen here: https://youtu.be/blalAktxFoI

This is a Colpitts oscillator + amplifier for testing crystals. The original circuit is by Alan Wolke W2AEW. I've adapted it slightly for SMD parts. Alan's video can be seen here: https://youtu.be/blalAktxFoI

Embeddable link to order this shared Project

Fast Edge Generator

2 layer board of 2.33 x 0.85 inches (59.1 x 21.7 mm)
Uploaded: August 17th 2020
Shared: August 17th 2020
Total Price: $9.90

This circuit generates edges on the order of 2 ns. It's useful for time domain reflectometry and measurements of capacitance and inductance. The original circuit was designed by W2AEW; this version differs in the inclusion of a potentiometer for setting frequency. Layout and this modification by …

Show full description

This circuit generates edges on the order of 2 ns. It's useful for time domain reflectometry and measurements of capacitance and inductance. The original circuit was designed by W2AEW; this version differs in the inclusion of a potentiometer for setting frequency. Layout and this modification by …

Show full description

Embeddable link to order this shared Project

Ventilator UI and Sensor Board 8-09-2020

2 layer board of 3.29 x 5.32 inches (83.6 x 135.1 mm)
Uploaded: August 9th 2020
Shared: August 9th 2020
Total Price: $87.55

Version 8-09-2020 of a PCB for running a ventilator system that should only be used when commercial options are unavailable. This is intended to be used with the ATMega 328PB Xplained board, however the logic interface headers are pin-compatible with Arduino boards. In theory, this is the final r…

Show full description

Version 8-09-2020 of a PCB for running a ventilator system that should only be used when commercial options are unavailable. This is intended to be used with the ATMega 328PB Xplained board, however the logic interface headers are pin-compatible with Arduino boards. In theory, this is the final r…

Show full description

Embeddable link to order this shared Project

Triple Pressure Sensor Interface V1.1

2 layer board of 2.90 x 1.40 inches (73.7 x 35.6 mm)
Uploaded: March 21st 2020
Shared: March 21st 2020
Total Price: $20.30

A board for interfacing with three AG30 series pressure sensors. Designed for mechanical engineering senior design team 59. This revision was made to reflect the correct pinout of the AG30 sensors and the old version has been taken down to prevent ordering mistakes.

A board for interfacing with three AG30 series pressure sensors. Designed for mechanical engineering senior design team 59. This revision was made to reflect the correct pinout of the AG30 sensors and the old version has been taken down to prevent ordering mistakes.

Embeddable link to order this shared Project

Single Pressure Sensor Interface V1.1

2 layer board of 1.83 x 1.83 inches (46.4 x 46.4 mm)
Uploaded: March 20th 2020
Shared: March 21st 2020
Total Price: $16.65

A board for interfacing with AG30 series pressure sensors. Designed for mechanical engineering senior design team 59. This revision was made to reflect the correct pinout of the AG30 sensors and the old version has been taken down to prevent ordering mistakes.

A board for interfacing with AG30 series pressure sensors. Designed for mechanical engineering senior design team 59. This revision was made to reflect the correct pinout of the AG30 sensors and the old version has been taken down to prevent ordering mistakes.

Embeddable link to order this shared Project