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I hope you have delay at start before INIT LCD like here:
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if INIT is OK then LCD go from black 1st line to grayed all lcd!
-Try with oscilloscope if you get signals at PINs
-try with longer delays or try 12MHz quartz
Hi
I try to build collinear antenna at 930 MHz ....
I build like this:
https://cheatthezone.tripod.com/wireless/colinear.html
but instead 60mm _O_ 90mm _O_ 83mm _ measuring parts (at wifi f 2400MHz) I made racalculation at 930MHz and build with wires:
SMA connector =161mm _O_ 242mm _O_ 218mm...
@juni1122
..if you search with google (harvesting RF energy 900 MHz pdf 1800) you can find very usefull information:
DESIGN CONSIDERATIONS FOR RADIO FREQUENCY
ENERGY HARVESTING DEVICES
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Rectenna Designs
....
but I...
You must quick charge and disharge capacitenca on FETs gate:
https://en.wikipedia.org/wiki/Gate_driver
It is often stated[by whom?] that transistors such as MOSFETs with isolated gate electrodes can be driven without a power source, which is not correct. In contrast to bipolar transistors...
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