klaute/SWRMeter

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klaute d12c75fa00 Complexity of the cc measurement function reduced by using an early return.		2016-10-14 10:08:56 +02:00
Si5351Arduino	Si5351 arduino library added.	2016-09-14 20:04:29 +02:00
doc	Schmatics of the si5351 breakout board added.	2016-09-22 10:07:39 +02:00
firmware	Complexity of the cc measurement function reduced by using an early return.	2016-10-14 10:08:56 +02:00
pcb	Added a new pinheader to connect the ili9341 TFT display.	2016-10-12 19:45:01 +02:00
tools	Two new functions added to set and get the clock correction factor to the si5351 chip. Also replaced the a0 a1 labels with fwd and ref text.	2016-10-12 20:32:46 +02:00
README.me	Readme information improved.	2016-09-23 08:40:39 +02:00

README.me

This project is reengineered out of the TenaTester build by ZL1CVD.
The firmware is completely written by myself, the wheatstone bridge was mostly drawn as seen in the TenaTesta demo videos by ZL1CVD on youtube. The electrical component values were modified by myself to fit my personal requirements. The si5351 prt in the schematics was replaced by an adafruit breakout board.

Ressources:
 * https://learn.adafruit.com/adafruit-si5351-clock-generator-breakout/wiring-and-test
 * http://community.silabs.com/t5/Timing-Knowledge-Base/Modifying-Output-Driver-Strength-of-the-Si5351/ta-p/112253
 * https://github.com/etherkit/Si5351Arduino
 * http://images.google.de/imgres?imgurl=http://www.kh-gps.de/si5351_4.jpg&imgrefurl=http://www.kh-gps.de/si5351.htm&h=483&w=1115&tbnid=p6ACt2AabOao6M:&tbnh=90&tbnw=208&docid=YzcwWac64G4VOM&usg=__tpZeibmT-PYky-rOAt6f3X7w_7s=&sa=X&ved=0ahUKEwjggd_4tI_PAhUEnRQKHQHdAVUQ9QEIJzAC