SomchaiDIY
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Everything posted by SomchaiDIY
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We use tomtom system for work delivery for most area in thailand never much problem We try many offline systems and tomtom always has best route logic Good satellite antenna very important for reliable gps location
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System like android auto os inside of car information is good choice and many maker now take this route Here is photo of friends truck we convert old stereo system to android auto os with the canbus data connection No need for full time internet connection because gps maps get update when car is near home wifi Option for mobile internet network for all device in truck Can choose navigation from many system Gps antenna for good satellite location All music media store in outside memory Can connect phone if need Cost of unit with convert frame and canbus module 7000 baht
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PM Prayut arrives in US for 2nd ASEAN-US Special Summit
SomchaiDIY replied to webfact's topic in Thailand News
Some photo caption from facebook Prayut - What happen to orange man with hot wife Biden - Get back in the kitchen -
Looking for advice – outside security camera - Can you help please.
SomchaiDIY replied to tomgreen's topic in DIY Forum
Dahua 4MP IR POE Bullet Network Camera About 1500 baht each camera We have many this brand on factory security poe network Reliable camera good image night and day We use separate poe injector and nvr with computer ups backup power box We have camera 70 meter from poe injector no problem Poe wired network type is best for long time reliable system -
Have you try turbo nozzle Can give very fast cleaning with good power gasoline pump Important nozzle size selected for output of pump
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Connecting float dc ground of electronic side to main supply ground can cause more problem. If shock from isolated power adapter are problem for user best take this problem to electronic tech
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Ask for receipt or use member points card for purchase proof Station do not automatic offer receipt for all customer
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PT and PTT station have member points card for customer Give this card when you pay and paper is given to customer to show purchase amount Not easy for workers to cheat full tank because many customer have these cards to prove gasoline amount
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Kerry service point for area are in the google map Best to find local service point because visit can help with problem Local service point can also give help on return product if require Service point not far from home becuase motorcycle pickup in these location Visit to service point can check if contact number correct from lazada customer
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With test meter easy to find fault area Depend on model resistances for winding vary 150 to 400 ohm for speed step Only one switch close for each speed step Hatari drawing I take from other post here
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Need 2m - 240V Ohm resistor - where to find ?
SomchaiDIY replied to skippybangkok's topic in The Electrical Forum
This diagram of capacitance at lamp L1 can make some sense Is possible L1 has internal option circuit to supply electronics using some capacitor at first lamp This idea can be used when no neutral at switch When ac wave is low lamp capacitor can make discharge on L1 line to power electronic circuit through neutral -
The start of my new 'Off grid' Solar install.
SomchaiDIY replied to BritManToo's topic in Alternative/Renewable Energy Forum
The charger for most system is master of charge voltage but this story is going more to complex directions It is truth for most system the bms is the safety cut not charge control There many type of bms balance but most are use the bypass dump method Share of data between parts is slowly more popular Big advantage for all system part to know all data example main circuit shunt Some bms can take charge state then look to all cell levels to make choice how / when to set balance logic High current bms dump can calculate energy dump when on balance and send result to charge state calculation Technologies for this story is fast moving -
The start of my new 'Off grid' Solar install.
SomchaiDIY replied to BritManToo's topic in Alternative/Renewable Energy Forum
Second hand cell can be big saving if user handling of pack is good and cell purchase is not cheating with dead cell I see many second hand cell pack with user trying get capacity maybe not good for the pack life or balance I think pack made with second hand cell can require the careful setting of charge range Pack of second hand cell can give happy life if settings adjusted to suit pack condition Having tech knowledge to make custom bms setting and charge state calculation is big advantage for second hand cell pack owner Some diy bms system available have custom setting and high balance current to help pack with not very equal cell group mr roland has the large second hand lifepo4 pack where pack has custom charge state monitor and setting to avoid stress of used cell pack Battery pack video link https://www.youtube.com/watch?v=Xpom9DagCME -
Battery packs often taken from service because only one or two cell have fault Often easier to install new pack and sell old pack as recycle Recycle people do not throw out the dead cell they sell online with working cell Some seller of cells test before sale but not easy to find this seller in lazada cheater market Pack with new top grade cell have equal capacity making easy start life for balance and the charge calculation Pack of second hand cell can need lot of attention to be sure pack is happy with charge voltage and balance system Very nice to have new cell pack because can run many cycles without balance worry
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Error
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Recommend a Solar garden light
SomchaiDIY replied to Denim's topic in Alternative/Renewable Energy Forum
good detective work makes good online shopping in this crazy cheat world many seller know most people fall into price trap and crazy description like 500WATT SOLAR LIGHT SPECIAL SMD LED JD is solar light model with number used in hundreds chinese factory big question who has the best JD -
Recommend a Solar garden light
SomchaiDIY replied to Denim's topic in Alternative/Renewable Energy Forum
Philips collection nice quality when compare to many cheap solar light little more money but better quality battery and led component video in thai but shows product quality if interested -
They just find another way to screw you ! (Lazada sellers)
SomchaiDIY replied to no deal's topic in General Topics
There is cheating in both direction many seller also have big problems with buyer One seller I use many time now have labels on box asking buyer to make unboxing video From hundred orders I have only 4 return for broken item or packing mistake In these days online shopping need good nose for cheating like detective Small phone screen not always best to view product info and make some research desk computer much better -
Daikin can have temperature sensor for air and sometimes also on evap line On new model tiny thermistor sensor located on small pcb at front and moisture here makes bad reading Engineer must check these thermistor for damages correct location and value with test meter These sensor can give bad reading after ac starts the cool down Possible the cleaning service caused problem with these sensor or control board inside or outside Best buy cheap digital thermometer and make photo of reading and remote control setting when fault happens