DIY Tag connect 


Made by one of my friends way before the TAG-connect became popular.

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Poor man's Shimano Biopace 

Yes someone welded a ovoid chainring to his cowrushing bike :D







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IGO8 on Navitel MS700 

Put the Igo to the Navitel folder on the flash.
Rename Navitel.exe to Navitel.old.exe
Rename Igo.exe to Navitel.exe

Put the following to the sys.txt:
https://gist.github.com/martonmiklos/6f35582765ecb1957ab7d66b79c23e12

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DJI Phantom I GPS receiver (DJI 11-22 V2) repair attempt  

I have bought a sunken PH1 around a year ago, managed to get it fly, but it is not able to see the GPS signal properly.

I have hooked up the board to my saleae and I have wrapped this tool to read the Saleae logic analyzer output CSV:
https://github.com/aanjhan/ubx

It turned out that it see some satellites, but the link quality is very poor: CNO (Carrier to Noise ratio) was mostly 0 and sometimes 28-30.

So I have replaced the ublox receiver module (to an uBlox 6T), it see more satellites, with better CNo (27-33) but still no signal lock in the system.

I have ordered today a ANT1575-2540A from the TME and we will see.
There is a ALM-1912-BLKG in the antenna path, but I have not been able to source it yet. And my hopes to the antenna is pretty high :D.




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Tyco Mutator schematic 

Schematic diagrams for the Tyco Mutator RC car (gathered from the FCC site).

Back in the days when I was kid I would give a lot for these docs when my car broke down. (It is waiting since then for the BL conversion...)



Tyco Mutator TY-W1237 schematics



Tyco Mutator TY-W2310 schematics

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